Nutrition and Health in Developing Countries

von: Richard David Semba, Martin W. Bloem

Humana Press, 2008

ISBN: 9781597454643 , 934 Seiten

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Nutrition and Health in Developing Countries


 

Dedication

6

Series Editor’s Introduction

7

Foreword

11

Preface

13

Table of Contents

17

Contributors

21

Chapter 1

24

Nutrition and Development: A Historical Perspective

24

1.1 Introduction

24

1.2 The Idea of Progress in Public Health

24

1.3 The Rise of Statistics and Probability

27

1.4 Early Foundations of Preventive Medicine

28

1.5 The Sanitary Idea

29

1.6 Contagion Versus Miasma

30

1.7 Advances in Microbiology

31

1.8 Nutritional Science in the 19Th Century

32

1.9 Infant Mortality and Social Reform

33

1.10 The Emergence of the Vitamins

34

1.11 Further Research on Nutritional Deficiency Diseases

37

1.12 Nutritional Immunology

38

1.13 Vitamin a and Reduction of Child Mortality

38

1.14 Growth in Food Production

40

1.15 Long-Term Trends in Diet

41

1.16 The Decline of Mortality

43

1.17 Graduate Education in Public Health

44

1.18 International Organizations

44

1.18 Conclusions

46

References

47

Chapter 2

56

Maternal Mortality in Developing Countries

56

2.1 Introduction

56

2.2 Magnitude and Causes of Maternal Mortality

57

2.2.1 Measuring Maternal Mortality

57

2.2.2 Medical Causes of Maternal Mortality

59

2.3 Strategies to Reduce Maternal Mortality

61

2.4 Socioeconomic Development, Women’s Education, and Maternal Mortality

62

2.5 Family Planning and Maternal Mortality

63

2.6 Nutrition and Maternal Health

64

2.6.1 Direct Effects of Energy or Micronutrient Defi ciency on Maternal Mortality

65

2.6.2 Malnutrition and the Risk of Obstructed Labour

67

2.6.3 Calcium Defi ciency and the Risk of Preeclampsia

68

2.6.4 Iron Defi ciency and Anemia

69

2.6.5 Vitamin A Defi ciency and the Risk of Anemia or Infection

71

2.6.6 Zinc Defi ciency and the Risk of Haemorrhage or Infection

72

2.6.7 Multiple Micronutrients

73

2.8 Antenatal Care

74

2.9 Training of Traditional Birth Attendants

75

2.10 Access to Professional Delivery Care

75

2.11 Summary and Conclusions

77

References

78

Chapter 3

86

Low Birth Weight and Neonatal Mortality

86

3.1 Introduction

86

3.2 Historical Background

86

3.3 Definitions

87

3.3.1 Neonatal Mortality

87

3.3.2 Perinatal Mortality

87

3.3.3 Low Birth Weight and Intrauterine Growth Restriction

88

3.4 Descriptive Epidemiology

89

3.5 Causes Of Neonatal Death

93

3.6 Influence Of Maternal Factors

93

3.6.1 Maternal Factors and Intrauterine Growth Restriction

93

3.6.2 Maternal Stature and Preterm Birth

94

3.6.3 Maternal Nutrition and Fetal Death

94

3.6.4 Maternal Factors and Early Neonatal Death

95

3.7 Interventions To Improve Neonatal Survival

95

3.7.1 Folic Acid Supplementation

95

3.7.2 Tetanus Toxoid Immunization

96

3.7.3 Syphilis Screening and Treatment

96

3.7.4 Preeclampsia and Eclampsia Prevention (Calcium Supplementation)

96

3.7.5 Intermittent Presumptive Treatment for Malaria

96

3.7.6 Detection and Treatment of Asymptomatic Bacteriuria

97

3.7.7 Antibiotics for Preterm Premature Rupture of Membranes

97

3.7.8 Corticosteroids for Preterm Labor

97

3.7.9 Detection and Management of Breech

98

3.7.10 Labor Surveillance

98

3.7.11 Clean Delivery Practice

98

3.7.12 Resuscitation of Newborn Baby

98

3.7.13 Breast-feeding

98

3.7.14 Prevention and Management of Hypothermia

99

3.7.15 Kangaroo Mother Care

99

3.7.16 Community-Based Pneumonia Case Management

99

3.8 Nutritional Interventions

99

3.8.1 Protein-Energy Supplementation

99

3.8.2 Maternal Iron Supplementation

100

3.8.3 Maternal Iodine Supplementation

100

3.8.4 Antenatal Vitamin A or b-Carotene Supplementation

101

3.8.5 Antenatal Zinc Supplementation

101

3.8.6 Multiple Micronutrient Supplementation

101

3.8.7 Reduction in Childhood Stunting

101

3.8.8 Prevention of Maternal Obesity

102

3.9 Implementation of Interventions To Reduce Low Birth Weight and Neonatal Mortality

102

3.10 Conclusions

102

3.11 Recommendations

103

References

103

Chapter 4

110

Infant Mortality

110

4.1 Introduction

110

4.2 Global Trends

111

4.2.1 Historical Trends: United States

111

4.2.2 Decline in Infant Mortality in Developing Countries

111

4.3 Determinants of Infant Mortality

114

4.3.1 Macrofactors: Socio-Politico-Economic Dimensions

114

4.3.2 Gender

115

4.3.3 Household Socioeconomic Factors

116

4.3.4 Maternal Age, Parity, and Birth Spacing

117

4.3.5 Maternal Nutrition and Infant Mortality

117

4.3.6 Breast-feeding

118

4.4 Direct and Underlying Causes of Infant Mortality

120

4.5 Contributions of Neonatal Mortality To Infant Mortality: Causes and Risk Factors

122

4.6 Interventions For Reducing Infant and Neonatal Mortality

124

4.7 Future Actions

126

References

127

Chapter 5

136

Child Growth and Development

136

5.1 Introduction

136

5.2 Measuring Impaired Growth: Concepts and Indicators

138

5.2.1 Fetal Growth

138

5.2.2 Child Growth Indicators and Their Interpretation

140

5.2.3 The International Reference Population

141

5.2.4 Issues in the Interpretation of Growth Data

142

5.3. Prevalence of Growth Retardation in Developing Countries

144

5.4 Health and Social Consequences of Impaired Growth

151

5.5 Interventions Aimed at Promoting Healthy Growth and Development

154

5.6 Conclusions

157

References

158

Chapter 6

162

Diarrheal Diseases

162

6.1 Introduction

162

6.2 Public Health Importance

162

6.3 Historical Background

163

6.4 Epidemiology

163

6.4.1 Geographical Distribution

163

6.4.2 Risk Factors

163

6.4.3 Incidence

165

6.4.4 Seasonality

166

6.4.5 Duration

166

6.5 Clinical Features/Pathophysiology

167

6.5.1 Major Pathogens Involved in Diarrheal Diseases in Children

167

6.5.2 Pathophysiology

167

6.5.3 Effects of Malnutrition on Mortality

167

6.5.4 Effects of Malnutrition on Morbidity

168

6.5.5 Effects on Growth of Children

169

6.5.6 Effect on Dietary Intake

169

6.5.7 Effects on Nutrient Absorption and Intestinal Function

170

6.5.8 Relationship with Nutrition and Immunity

170

6.5.8.1 Undernutrition

170

6.5.8.2 Vitamin A

170

6.5.8.3 Zinc

171

6.5.8.4 Other Micronutrients

171

6.6 Diagnosis

171

6.7 Treatment

172

6.7.1 Oral Rehydration Therapy

172

6.7.2 Nutritional Management

172

6.7.2.1 Timing of Feeding

172

6.7.2.2 Lactose

173

6.7.2.3 Mixed Diets

173

6.7.2.4 Fiber

174

6.7.2.5 Probiotics

175

6.7.2.6 Prebiotics

176

6.7.2.7 Epidermal Growth Factor

177

6.7.2.8 Short-Chain Fatty Acids

177

6.7.2.9 Glutamine

178

6.7.2.10 Nucleotides

178

6.7.2.11 Lectins

179

6.7.3 Micronutrient Supplementation

179

6.7.3.1 Zinc

179

6.7.3.2 Vitamin A

180

6.7.4 Dietary Management of Persistent Diarrhea

181

6.8 Prevention

181

6.8.1 Breast-Feeding

181

6.8.2 Improved Weaning Practices

182

6.8.3 Use of Safe Water

182

6.8.4 Hand Washing

182

6.8.5 Latrines and Proper Disposal of Human Waste

183

6.8.6 Measles Immunization

183

6.8.7 Nutritional Interventions

183

6.8.7.1 Zinc

183

6.8.7.2 Vitamin A

184

6.8.7.3 Nucleotides

185

6.8.8 Vaccines

185

6.8.9 Other Potential Interventions

186

6.9 Future Directions

186

6.10 Conclusions

187

References

187

Chapter 7

202

Acute Lower Respiratory Infections

202

7.1 Introduction

202

7.2 Public Health Importance

202

7.3 Historical Background

202

7.4 Epidemiology

203

7.4.1 Risk Factors

203

7.4.1.1 Low Birth Weight

203

7.4.1.2 Lack of Breast-Feeding

205

7.4.1.3 Malnutrition

205

7.4.1.4 Micronutrient Status

206

7.4.1.5 Decreased Immunity

207

7.4.1.6 Environmental and Socioeconomic Factors

207

7.4.1.7 Prior Infections

209

7.4.1.8 Other Factors

210

7.4.2 Incidence

210

7.4.3 Seasonality

211

7.4.4 Duration

212

7.4.5 Case Fatality Ratios

212

7.5 Clinical Features/Pathophysiology

213

7.5.1 Clinical Presentation

213

7.5.2 Major Pathogens Involved in Acute Lower Respiratory Diseases in Children

213

7.5.3 Pathophysiology

215

7.5.4 Impact of Acute Respiratory Infections on Nutrition and Growth

217

7.6 Treatment

218

7.6.1 Case Management of Pneumonia

218

7.6.2 Nutritional Interventions for Treatment of Acute Respiratory Infections

218

7.6.2.1 Zinc

218

7.6.2.2 Vitamin A

219

7.6.2.3 Selenium

219

7.7 Prevention

219

7.7.1 Immunization

220

7.7.3 Nutrition

221

7.7.3.1 Breast-Feeding

221

7.7.3.2 Prevention of LBW

221

7.7.3.3 Reduction of Malnutrition

221

7.7.3.4 Zinc Supplementation

221

7.7.3.5 Vitamin A Supplementation

222

7.7.3.6 Selenium Supplementation

222

7.7.4 Other Measures

222

7.8 Future Directions

222

7.8.1 Risk Factors for Pneumonia and Acute Lower-Respiratory Infection

222

7.8.2 Clinical Aspects

223

7.8.3 Prevention

223

7.9 Conclusions

224

References

225

Chapter 8

238

Measles

238

8.1 Introduction

238

8.2 Definition

238

8.3 Public Health Importance

238

8.4 Historical Background

239

8.5 Epidemiology

239

8.6 Pathophysiology

240

8.7 Interaction With Nutrition

241

8.7.1 Effect of Measles on Nutrition

241

8.7.2 Effect of Malnutrition on Measles

241

8.8 Clinical Features

241

8.9 Diagnosis

242

8.10 Treatment

243

8.10.1 Nutritional Support

243

8.10.2 Vitamin A Therapy

244

8.10.3 Vitamin A Dosage

246

8.11 Prevention

246

8.11.1 Measles Vaccine

246

8.11.2 Improving Vitamin A Status of Children

247

8.12 Research Needs

247

8.13 Conclusions

248

References

248

Chapter 9

252

Malaria and Nutrition

252

9.1 Introduction

252

9.2 Historical Background

253

9.2.1 Historical Overview of Malaria

253

9.2.2 Attempts to Eradicate Malaria

253

9.2.3 Modern Approaches to Malaria Control

254

9.2.3.1 Insecticide-Treated Bed Nets

254

9.2.3.2 Vaccine Development

254

9.3 Epidemiology

255

9.3.1 Geographic Distribution and Disease Burden

255

9.3.2 Life Cycle of the Malaria Parasite

256

9.3.3 Classifi cation Schemes of Malaria Endemnicity

258

9.3.4 Clinical Disease

258

9.3.5 Epidemiology of Severe Malaria

259

9.3.6 Diagnosis and Drug Treatment of Malaria

259

9.3.6.1 Diagnosis

259

9.3.6.2 Drug Treatments

259

9.3.7 Host-Parasite Interactions and Immunity

260

9.3.8 Modulating Factors of Malaria Morbidity and Mortality

262

9.4 Effects of Nutrition on Malaria

262

9.4.1 Early Perceptions of the Impact of Nutrition on Malaria

262

9.4.2 Malnutrition and Malaria: Synergism or Antagonism?

263

9.4.2.1 Malnourished Individuals and Malaria Morbidity and Mortality

263

9.4.2.1.1 Clinic-Based Studies.

263

9.4.2.1.2 Early Hospital-Based Studies of Severe Malaria.

263

9.4.2.1.3 Critical Analysis of the Early Hospital-Based Studies.

272

9.4.2.1.4 Modern Hospital-Based Studies of Severe Malaria.

272

9.4.2.1.5 Cross-Sectional Studies of Malariometric Indicators.

273

9.4.2.1.6 Longitudinal Cohort Studies and Effects of Nutrition on Drug-Resistant Malaria.

273

9.4.2.2 Studies in Famine Relief

274

9.4.2.3 Studies in Animals

275

9.4.2.4 Synthesis of Data Concerning Effects of Protein-Energy Malnutrition on Malaria

275

9.4.3 Impact of Malaria on Growth

276

9.4.4 Infl uence of Specific Nutrients on Malaria Morbidity

277

9.4.4.1 Iron

277

9.4.4.2 Zinc

278

9.4.4.3 Vitamin A

279

9.4.4.4 B Vitamins

280

9.4.4.4.1 Folate.

280

9.4.4.4.2 Riboflavin.

281

9.4.4.4.3 Thiamine.

282

9.4.4.5 Vitamin E and Other Antioxidants

282

9.5 Conclusions and Recommendations

283

References

284

Chapter 10

298

Tuberculosis

298

10.1 Introduction

298

10.1.1 Definitions

298

10.1.2 Public Health Importance

298

10.2 Historical Background

299

10.2.1 Antiquity

299

10.2.2 Early Ideas About Tuberculosis

300

10.2.3 Tuberculosis as an Infectious Disease

301

10.2.4 Cod-Liver Oil Therapy

301

10.2.5 BCG Vaccine and Tuberculosis Chemotherapy

302

10.2.6 The Decline of Tuberculosis in Industrialized Countries

302

10.3 Epidemiology

303

10.3.1 Geographic Distribution

303

10.3.2 High-Risk Groups and Risk Factors

304

10.3.3 Incidence and Prevalence of Tuberculosis in Vulnerable Populations

304

10.3.3.1 HIV Infection

304

10.3.3.2 Children

305

10.3.3.3 Older Adults

305

10.3.3.4 Other Populations at Risk

305

10.3.4 Drug-Resistant Tuberculosis

306

10.4 Clinical Features/Pathophysiology

306

10.4.1 Clinical Features of Tuberculosis

306

10.4.2 Pathophysiology

307

10.4.3 Role of Nutrition

308

10.4.3.1 Protein and Energy Status

308

10.4.3.2 Vitamin A

309

10.4.3.3 Vitamin D

310

10.4.3.4 B Complex Vitamins

310

10.4.3.5 Vitamin C

310

10.4.3.5 Other Nutritional Problems

311

10.4.4 Strength of Evidence Regarding Role of Nutrition

311

10.5 Diagnosis

313

10.5.1 Clinical Diagnosis of Latent Tuberculosis Infection

313

10.5.2 Clinical and Laboratory Diagnosis of Active Tuberculosis

313

10.5.2.1 Staining Techniques

314

10.5.2.2 Mycobacterial Culture

314

10.5.2.3 Molecular Methods

314

10.5.2.4 Histopathology

314

10.5.2.5 Specimen Collection and Laboratory Safety

314

10.5.3 Differential Diagnosis

315

10.6 Treatment and Prevention

315

10.6.1 General Considerations

315

10.6.2 Treatment of Active Tuberculosis

315

10.6.2.1 General Treatment Regimens

315

10.6.2.2 Special Circumstances

317

10.6.3 Treatment of Latent Tuberculosis Infection

318

10.6.4 BCG Vaccination

318

10.6.5 Environmental Measures

319

10.7 Summary and Conclusions

319

10.8 Recommendations

319

References

320

Chapter 11

330

Human Immunodeficiency Virus Infection

330

11.1 Introduction

330

11.2 Historical Background

331

11.3 Epidemiology

332

11.3.1 Highest-Risk Groups

332

11.3.2 Prevalence and Incidence

332

11.3.3 Risk Factors

333

11.3.3.1 Transmission of HIV

333

11.3.3.2 Progression of the Disease

334

11.4 Clinical Features/Pathophysiology

334

11.4.1 Clinical Features

334

11.4.1.1 Primary HIV Infection

336

11.4.1.2 Asymptomatic HIV Infection

336

11.4.1.3 Symptomatic HIV Infection

336

11.4.1.4 Acquired Immune Defi ciency Syndrome

336

11.4.2 Pediatric HIV Infection

337

11.4.2.1 Factors Affecting Disease Progression in Children

337

11.4.2.2 Classifi cation of HIV Infection in Children

338

11.4.3 Pathogenesis

339

11.4.4 Role of Nutrition

340

11.4.4.1 The Role of Nutritional Factors in HIV Progression and Transmission

340

11.4.4.2 The Impact of HIV Infection on Nutritional Status

347

11.5 Diagnosis

349

11.6 Treatment

350

11.7 Prevention

350

11.8 Summary and Conclusions

351

References

352

Chapter 12

364

Malnutrition

364

12.1 Introduction

364

12.1.1 Defi nitions and Historical Overview

364

12.2 Measuring Physical Status and Growth

367

12.2.1 Anthropometric Indices of Nutritional Health

367

12.2.2 Growth References

368

12.2.3 Expression of Anthropometry

369

12.2.4 Severe Malnutrition

369

12.3 Patterns and Timing of Growth Retardation

370

12.3.1 Prevalence and Patterns of Global Anthropometric Status

370

12.3.2 Timing of Growth Faltering and Potential for Catch-Up Growth

370

12.4 Epidemiologic Evidence

373

12.4.1 Conceptual Diagram

373

12.4.2 Consequences of Malnutrition

373

12.4.2.1 Mortality

373

12.4.2.2 Infection and Disease

376

12.4.2.3 Functional Outcomes

377

12.4.2.4 Summary

379

12.4.3 Causes of Malnutrition and Poor Growth

379

12.4.3.1 Infection

380

12.4.3.2 Diet

382

12.4.3.3 Relative and Combined Effects of Infection and Poor Diet on Child Growth

385

12.4.4 The Underlying Determinants: Food, Care, and Heath

387

12.4.4.1 Programmatic Implications

387

12.5 Nutrition-Oriented Interventions and Programs: Necessary Elements and Optimal Designs

387

12.5.1 Manuals and Guides to Assist with Designing Programs

389

12.5.2 Treatment of Severe Malnutrition

389

12.6 Research Needs and Priorities

390

12.7 Summary and Conclusions

392

References

392

Chapter 13

400

Vitamin A Deficiency

400

13.1 Introduction

400

13.2 The Nutrient: Vitamin A

400

13.2.1 Structure and Nomenclature

401

13.2.2 Absorption and Transport

402

13.2.3 Metabolism and Functions

402

13.2.3.1 Visual Cycle

402

13.2.3.2 Gene Regulation

404

13.2.4 Dietary Sources and Intake Recommendations

404

13.3 Public Health Significance of Vitamin a Deficiency

408

13.3.1 Prevalence

408

13.3.1.1 Preschool-Aged Children

409

13.3.1.2 Newborns and Neonates

412

13.3.1.3 School-Aged Children

413

13.3.1.4 Women of Reproductive Age

413

13.3.2 Effects on Child Morbidity and Mortality

413

13.3.3 Effects on Infant Morbidity and Mortality

416

13.3.4 Effects on Maternal Morbidity and Mortality

417

13.4 Historical Background

418

13.5 Epidemiology

422

13.5.1 Location

422

13.5.2 Persons at Risk

424

13.5.2.1 Age

424

13.5.2.2 Gender

425

13.5.2.3 Socioeconomic status

425

13.5.3 Periodicity

426

13.5.4 Proximal Causes

427

13.5.4.1 Breast-Feeding

427

13.5.4.2 Complementary Feeding

428

13.5.4.3 Infectious Disease Morbidity

429

13.6 Clinicopathological Features

431

13.6.1 Xerophthalmia

431

13.6.1.1 Night Blindness (XN)

431

13.6.1.2 Conjunctival Xerosis with Bitot’s Spots (X1B)

431

13.6.1.3 Corneal Xerosis (X2), Ulceration, and Necrosis (X3)

432

13.6.2 Infection

433

13.7 Treatment

434

13.8 Prevention

435

13.8.1 Dietary Diversifi cation

436

13.8.2 Fortification

437

13.8.3 Supplementation

438

13.9 Conclusion

440

References

441

Chapter 14

458

Nutritional Rickets and Vitamin DDeficiency

458

14.1 Introduction

458

14.2 Definition

458

14.3 Public Health Importance

459

14.4 Historical Background

460

14.5 Epidemiology

461

14.6 Pathophysiology/Clinical Features

467

14.7 Diagnosis

467

14.8 Treatment

469

14.9 Prevention

470

14.10 Future Directions

472

14.11 Conclusions

472

References

473

Chapter 15

478

Zinc Deficiency

478

15.1 Introduction

478

15.2 Public Health Significance

478

15.3 Historical Background

479

15.4 Epidemiology

479

15.5 Metabolism of Zinc

480

15.5.1 Zinc Absorption

480

15.5.2 Zinc Transport

481

15.5.3 Zinc Storage

481

15.5.4 Zinc Excretion

481

15.6 Biological Functions of Zinc

482

15.6.1 Zinc Metalloenzymes

482

15.6.2 Zinc Fingers

482

15.6.3 Zinc and Biomembranes

482

15.6.4 Zinc and Immune Function

482

15.6.5 Other Functions of Zinc

483

15.7 Pathophysiology of Zinc Deficiency

483

15.7.1 Dietary Sources and Intake of Zinc

483

15.7.2 Absorption and Bioavailability of Zinc

484

15.7.3 Zinc Dietary Requirements

485

15.8 Clinical Manifestations of Zinc Deficiency

486

15.9 Assessment of Zinc Status

487

15.9.1 Plasma or Serum Zinc Concentrations

487

15.9.2 Dietary Assessment

488

15.9.3 Other Methods

488

15.10 Zinc Supplementation as a Public Health Intervention

489

15.10.1 Diarrheal Disease in Children

489

15.10.2 Respiratory Disease in Children

489

15.10.3 Malaria in Children

490

15.10.4 Growth and Development of Children

490

15.10.5 Maternal Health

491

15.10.6 Human Immunodefi ciency Virus Infection

492

15.11 Prevention of Zinc Deficiency

492

15.12 Conclusions

494

15.13 Recommendations

494

References

495

Chapter 16

502

Iron Deficiency and Anemia

502

16.1 Introduction

502

16.2 Defining Anemia and Iron Deficiency

502

16.3 Historical Background

503

16.4 Epidemiology

503

16.4.1 Prevalence of Iron Deficiency and Anemia

503

16.4.2 Risk Factors for Iron Deficiency

504

16.5 Metabolism of Iron

505

16.5.1 Absorption of Iron

505

16.5.2 Transport of Iron

507

16.5.3 Storage of Iron

507

16.5.4 Iron Turnover and Loss

507

16.5.5 Iron-Nutrient Interactions

508

16.6 Role of Iron in Biological Functions

508

16.6.1 Hemoglobin

508

16.6.2 Myoglobin

508

16.6.3 Cytochromes

508

16.6.4 Other Iron-Containing Enzymes

509

16.6.5 Iron and Immune Function

509

16.7 Pathogenesis of Iron Deficiency and Anemia

509

16.7.1 Increased Requirement for Iron

509

16.7.2 Poor Dietary Intake

510

16.7.3 Abnormal Iron Loss

510

16.8 Functional Consequences of Iron Deficiency

510

16.8.1 Anemia and Mortality

511

16.8.2 Birth Outcomes

511

16.8.3 Child Behavior and Development

512

16.8.4 Work Performance and Productivity

512

16.8.5 Heavy Metal Absorption

512

16.8.6 Iron and Infection

513

16.9 Assessment of Iron Nutritional Status

516

16.9.1 Tests for Iron Deficiency

516

16.9.2 The Meaning of Anemia

516

16.9.3 Field Testing for Hemoglobin

517

16.9.4 Detection of Anemia by Clinical Examination

517

16.9.5 Use of Frequency Distributions of Hemoglobin in Assessing Iron Status

517

16.9.6 The Diagnosis of Multiple Conditions Contributing to Anemia

518

16.10 Control of Iron Deficiency

518

16.10.1 Primary Health Care-Based Approaches

518

16.10.1.1 Iron Supplementation

518

16.10.1.2 Control of Intestinal Helminth Infection

520

16.10.2 Nutrition Education and Promotion

520

16.10.3 Fortification

520

16.10.4 Iron Overload

521

16.11 Conclusions

522

16.12 Recommendations

522

References

523

Chapter 17

530

Iodine Deficiency Disorders

530

17.1 Introduction

530

17.2 Public Health Significance

530

17.3 Historical Background

530

17.4 Epidemiology

532

17.4.1 Geographical Distribution

532

17.4.2 Prevalence

533

17.4.3 Risk Factors

534

17.5 Metabolism of Iodine

534

17.5.1 Iodine Absorption and Transport

534

17.5.2 Iodine Storage

534

17.5.3 Synthesis of Thyroid Hormones

535

17.5.4 Transport and Turnover of Thyroid Hormones

535

17.5.5 Thyroid Hormones and Gene Expression

535

17.6 Role of Iodine in Biological Functions

536

17.6.1 Metabolism

536

17.6.2 Growth and Development

536

17.6.3 Brain Development

536

17.6.4 Iodine and Immune Function

537

17.7 Pathophysiology of Iodine Deficiency

537

17.7.1 Dietary Sources and Intake of Iodine

537

17.7.2 Goitrogens

537

17.7.3 Iodine Dietary Requirements

538

17.8 Clinical Manifestations of Iodine Deficiency Disorders

538

17.8.1 Goiter

538

17.8.2 Cretinism

539

17.8.3 Growth and Development

539

17.8.4 Reproductive Failure

540

17.8.5 Perinatal, Infant, and Child Mortality

540

17.9 Assessment of Iodine Status

540

17.9.1 Goiter Rate

541

17.9.2 Urinary Iodine Concentrations

543

17.9.3 Blood Thyroid-Stimulating Hormone

543

17.10 Prevention of Iodine Deficiency Disorders

543

17.10.1 Iodized Salt

544

17.10.2 Oral Iodized Oil

544

17.10.3 Iodized Oil Injections

545

17.10.4 Other Strategies

545

17.11 Conclusions

546

References

546

Chapter 18

554

Multiple Micronutrient Malnutrition

554

18.1 Introduction

554

18.2 Prevalence of Multiple-Micronutrient Malnutrition

556

18.2.1 Women of Reproductive Age

556

18.2.2 Children

557

18.3 Consequences of Multiple-Micronutrient Malnutrition During the Life Cycle

558

18.3.1 Pregnancy

558

18.3.1.1 Two-Way Micronutrient Interactions in Pregnancy

559

18.3.1.2 Prenatal Multivitamin-Mineral Supplements

560

18.3.2 Lactation

567

18.3.3 Childhood

568

18.3.3.1 Growth

568

18.3.3.2 Micronutrient Status

569

18.3.3.3 Morbidity

569

18.3.3.4 Motor and Mental Development

576

18.3.4 Adult Morbidity

578

18.4 Programmatic Implications

579

18.4.1 Improving Dietary Intake

579

18.4.1.1 Behavior Change Programs

579

18.4.1.2 Promoting Animal Production and Home Gardening

581

18.4.2 Fortification

581

18.4.3 Multiple-Micronutrient Supplements

585

18.5 Conclusions

587

References

588

Chapter 19

600

Nutrition in the Elderly in Developing Countries

600

19.1 The Biology of Human Aging and Survival: an Evolutionary Perspective

600

19.1.1 Overview

600

19.1.2 Evolutionary Perspective on Aging

601

19.1.3 The Evolutionary Paradoxes

601

19.1.4 The Biology of Aging

602

19.2 Senescence of Tissue and Organ Function with Aging

602

19.2.1 Function of the Alimentary and Digestive Tract in Aging

604

19.3 Successful Aging, Normative Aging, and Frail Aging of Individuals Within a Population

604

19.4 Demography of Aging of Populations in Developing Countries

604

19.5 The Burden of Chronic Diseases in the Aging

605

19.5.1 Nontransmissible Disease Epidemiology in Developing Country Populations

605

19.5.2 Relationship of Chronic Disease to Diet and Nutrition in Developing Countries

606

19.6 Nutritional Requirements, Nutrient Intake Recommendations, and Guidelines for Healthful Eating for the Elderly

606

19.7 Dietary Intake and Eating Behavior by Elderly in Developing Countries

613

19.7.1 Assessing Dietary Intakes in Older Subjects: Caveats for Developing Countries

613

19.7.2 Patterns of Dietary Consumption in Later Life

614

19.8 Nutritional Deficiency and Excess and its Assessment in the Elderly of Developing Countries

615

19.8.1 Deficiency and Undernutrition States in Developing Country Elderly

615

19.8.1.1 Diagnosing Undernutrition

616

19.8.2 Excess and Overnutrition States in Developing Country Elderly

617

19.8.2.1 Diagnosing Overnutrition

618

19.9 Conclusions

618

References

619

Chapter 20

624

The Nutrition Transition and Its Relationship to Demographic Change

624

20.1 Introduction

624

20.2 Background: Patterns of the Nutrition Transition

625

20.3 Economic Change and the Nutrition Transition

628

20.4 Demographic Change and the Nutrition Transition

630

20.4.1 Key Dimensions of World Urbanization

630

20.4.2 Proportion Living in Cities

631

20.4.3 Concentrated Population Growth

632

20.4.4 Shift in the Proportion of Poor Living in Cities

632

20.5 The Nature and Pace of the Nutrition Transition

633

20.5.1 Japanese and Korean Accelerated Model

633

20.5.2 Low-Income Countries with Rapid Income Increases: The Case of China

634

20.5.3 Degenerative Dietary and Epidemiologic Transition with Limited or No Economic Improvement

634

20.5.4 Other Low-Income Countries

636

20.6 Conclusion

636

References

637

Chapter 21

640

The Rapid Emergence of Obesity in Developing Countries

640

21.1 Introduction

640

21.2 Methods

641

21.2.1 Survey Design and Sample

641

21.2.2 Measures

641

21.3 Results

642

21.3.1 The Prevalence in Lower- and Middle-Income Countries

642

21.3.1.1 Latin America

642

21.3.1.2 Asia

642

21.3.1.3 Western Pacific

649

21.3.1.4 Middle East

649

21.3.1.5 Sub-Saharan Africa

650

21.3.2 Obesity Trends in Lower- and Middle-Income Countries

650

21.3.2.1 Brazil

653

21.3.2.2 China

654

21.3.2.3 Indonesia

654

21.3.2.4 Vietnam

655

21.3.2.5 Kuwait

655

21.3.2.6 Mauritius

655

21.3.2.7 Russia

655

21.3.2.8 Western Pacific

656

21.4 Implications for Public Health

656

21.4.1 Obesity

656

21.4.2 Physical Activity

657

21.4.3 Interactions of Obesity and Activity

657

21.4.4 Genetic Component

657

21.5 Research and Policy Implications

657

References

658

Chapter 22

662

Rapid Urbanization and the Challenges of Obtaining Food and Nutrition Security

662

22.1 Introduction

662

22.2 Increasing Urban Poverty and Undernutrition

663

22.2.1 Poverty Data

664

22.2.2 Nutrition Data

664

22.3 Challenges to Obtaining Food, Nutrition, and Health Security in an Urban Environment

665

22.3.1 The Importance of Cash, Employment, Food Prices, and Agriculture for Urban Livelihood and Food Security

665

22.3.1.1 Dependence on Cash for Food

665

22.3.1.2 Urban Marketing Systems, Supermarkets, and Food Price Policies

665

22.3.1.3 Urban Employment

666

22.3.1.4 Urban Food Production

667

22.3.2 Stronger Formal Safety Nets and Weaker Informal Safety Nets?

667

22.3.3 The Increased Labor Force Participation of Women and Its Consequences for Child Care

668

22.3.3.1 Women’s Work Patterns and Child Care Use in Urban and Rural Areas

668

22.3.3.2 Impact of Maternal Work on Child Care Practices

669

22.3.4 Lifestyle Changes

670

22.3.4.1 Dietary Patterns

670

22.3.4.2 Activity Patterns

671

22.3.4.3 Health Implications

671

22.3.5 Increased Availability of Services, But Questionable Accessby Poor Households

672

22.3.6 Environmental Contamination

672

22.3.6.1 Air Pollution

672

22.3.6.2 Water and Food Contamination

673

22.3.7 Legal Rights

673

22.3.7.1 Urban Agriculture

673

22.3.7.2 Informal Marketing Activities Such as Street Foods

674

22.3.7.3 Insecurity of Tenure and Development Activity

674

22.4 Implications for Policy and Research

674

22.5 Conclusions

676

References

677

Chapter 23

680

Impact of Parental Tobacco Use on Child Malnutrition and Survival

680

23.1 Introduction

680

23.2 Historical Background

681

23.3 Epidemiology of Tobacco Use

681

23.3.1 World Health Organization Conceptual Framework for the Tobacco Epidemic

681

23.3.2 The African Region

683

23.3.3 The Region of the Americas

684

23.3.4 The Eastern Mediterranean Region

685

23.3.5 The European Region

685

23.3.6 The Southeast Asia Region

686

23.3.7 The Western Pacific Region

686

23.4 Tobacco Use and Child Malnutrition

687

23.4.1 Indonesia

688

23.4.2 Bangladesh

689

23.4.3 India

690

23.4.4 “Going Up in Smoke”: Tobacco Versus Food

690

23.5 Other Adverse Effects of Parental Smoking on Child Health

691

23.5.1 Respiratory Health

691

23.5.2 Low Birth Weight

691

23.5.3 Circulating Antioxidants

692

23.5.4 Increased Health Care Utilization

692

23.6 Parental Tobacco Use and Child Mortality

692

23.7 Tobacco Control

693

23.7.1 Indirect Advertising and Trademark Diversification

694

23.7.2 Industry Programs to Counter Antitobacco Science

694

23.7.3 Offshore Strategies

696

23.7.4 Industry-Funded Youth Smoking Prevention Programs

696

23.7.5 Appeals to International Trade Organizations and Representatives

696

23.8 Conclusions

696

23.9 Recommendations

697

References

697

Chapter 24

700

Humanitarian Emergencies

700

24.1 Introduction

700

24.1.1 Defi nitions and History

700

24.1.2 Objective of the Chapter

702

24.2 Epidemiology of Humanitarian Emergencies

702

24.2.1 Global Trends in Number of Conflicts, Refugees, and Internally Displaced Persons

702

24.2.2 Main Causes of Morbidity and Mortality

704

24.2.3 Communicable Diseases, with Specific Focus on HIV/AIDS/STI

705

24.2.4 Malnutrition and Food Security

706

24.2.5 Reproductive Health

707

24.2.6 Mental Health

708

24.3 Programming

709

24.4 New Developments and Challenges

711

24.4.1 New Humanitarianism and Humanitarian Reform

711

24.4.2 Other Initiatives for Improvement of Accountability and Quality

713

24.4.3 Health, Nutrition, and Conflicts in a Changing Global Environment

713

24.5 Summary Recommendations for The Way Forward

714

24.5.1 Policy Recommendations

715

24.5.2 Technical Recommendations

715

24.5.3 Training Recommendations

716

References

716

Chapter 25

722

Tackling Nutrient Deficiencies and Life-Threatening Disease

722

25.1 Introduction

722

25.2 Food and Disease, Cause and Effect

723

25.3 Nutrient-Disease Synergies and Nutrient Deficiencies

724

25.4 Responding to Malnutrition and Disease Through Food

726

25.4.1 General Food Distribution

729

25.4.2 Supplementary Feeding

734

25.4.3 Therapeutic Feeding

736

25.4.4 Addressing Micronutrient Deficiencies

737

25.5 Conclusions and Future Directions

738

References

739

Chapter 26

744

The Indian Ocean Tsunami of December 26, 2004

744

26.1 Introduction

744

26.2 Loss and Damage Caused by the Tsunami

745

26.3 Response to the Tsunami

746

26.3.1 Relief and Recovery Phase

746

26.3.2 Coordination of Response

747

26.3.3 Financial Support

748

26.3.4 Lessons Learned for Next Disaster Response

748

26.4 Impact of Tsunami on Health and Nutrition: Focus on Indonesia

749

26.4.1 Preexisting Health and Nutrition Situation

749

26.4.2 Impact on Health and Nutrition

750

26.4.2.1 Communicable Diseases

750

26.4.2.2 Handling Dead Bodies

751

26.4.2.3 Injuries

751

26.4.2.4 Mental Health Problems

752

26.4.3 Interventions for Health and Nutrition

753

26.4.3.1 Disease and Health and Nutrition Surveillance Systems

753

26.4.3.2 Improving Health and Nutritional Status of the Affected Population

754

26.4.3.3 The Need for Micronutrients in Emergencies

754

26.4.3.4 Example of Distributing Vitamin and Mineral Preparations: Tsunami Relief in Indonesia

756

26.5 Conclusions and Recommendations

757

References

758

Chapter 27

762

The Impact of Supermarkets on Farmers, Consumers, and Food Security in Developing Countries

762

27.1 Introduction

762

27.2 The Supermarket Revolution: What’s Happening?

763

27.3 An Analytical Perspective on the Impact of Supermarkets

766

27.3.1 Consumers and Public Health

768

27.3.2 Small Farmers

768

27.3.3 Food Security

769

27.4 The Development Dimensions of the Supermarket Revolution

769

27.4.1 Supermarkets: Complements or Substitutes for a Public Role in Marketing?

770

27.4.2 Macroeconomic and Growth Issues

770

27.5 Putting Supermarkets in a Food Policy Framework

771

27.6 Conclusions

772

References

773

Chapter 28

776

Homestead Food Production for Improving Nutritional Status and Health

776

28.1 Introduction

776

28.2 The Contribution of Homestead Food Production to Increasing Food Security.

779

28.3 Is Homestead Food Production Economically Viable for Households and Communities?

781

28.4 Assessing the Impact of Homestead Food Production on Nutrition and Health: the Case of Vitamin a Deficiency

782

28.4.1 Conceptual Framework for Impact of Food-Based Programs on Nutritional Status and Health

782

28.4.2 How Food Consumption Can Increase Vitamin A Status

783

28.4.2.1 Studies of Plant Foods for Combating Vitamin A Deficiency

785

28.4.2.2 Factors Determining Bioavailability and Bioconversion of Carotenoids Studies

786

28.4.2.2.1 Host-Related Factors.

786

28.4.2.2.2 Food-Related Factors.

787

28.4.2.2.3 Meal-Related Factors.

788

28.4.2.3 Guidelines for Maximizing Vitamin A Intake from Plant Foods

788

28.4.3 Health Effects of Increased Consumption of Vitamin A-Rich Foods

790

28.4.3.1 How the Consumption of Vitamin A-Rich Foods Can Affect Health

790

28.4.3.2 Evidence of Impact of Vitamin A-Rich Foods on Health in Developing Countries Beyond a Vitamin A Effect

790

28.4.3.3 Summary of Role of Foods for Health

791

28.4.4 Impact of Homestead Food Production on Nutritional Status and Health

791

28.4.4.1. Example of Impact of Homestead Food Production on Nutritional Status or Health

793

28.4.4.2 Approaches for Assessing Impact of HFP on Nutritional Status or Health

794

28.5 Homestead Food Production Contributes to Development Through Empowerment of Women

796

28.6 A Programmatic Approach to Increase and Improve Homestead Food Production Practices

796

28.7 Conclusions and Recommendations

798

References

799

Chapter 29

804

Food Policy

804

29.1 Introduction

804

29.2 Definitions

804

29.3 Food Policy: What’s Different?

806

29.3.1 The Food and Health Dimension

806

29.3.2 The Poverty and Development Dimension

807

29.4 Food Policy in Historical Perspective

808

29.5 The Sectoral Perspective

810

29.6 Lessons for Food Policy

813

29.6.1 Three Things Not to Do

813

29.6.2 Three Things to Do

813

References

814

Chapter 30

816

Need, Efficacy, and Effectiveness of Multiple Vitamin/Mineral Supplements for Young Children and Considerations for Programs

816

30.1 Introduction

816

30.2 Existence and Consequences of Multiple Vitamin and Mineral Deficiencies

818

30.2.1 Vitamin and Mineral Deficiencies in Infants and Young Children

818

30.2.2 Why Supply a Combination of Vitamins and Minerals?

819

30.2.3 Need for Vitamins and Minerals is Particularly High in Emergencies

819

30.3 Methods Used for Reviewing Impact of Increased Intake of Vitamins and Minerals by Children

820

30.4 Vitamin and Mineral Supplements, Recommended Intake, and Composition of Supplements Used

820

30.5 Efficacy of Multimicronutrient Supplements for Children

828

30.5.1 Micronutrient Status

828

30.5.1.1 Hemoglobin and Anemia

828

30.5.1.2 Ferritin and Iron Deficiency

832

30.5.1.3 Serum Retinol, Vitamin a Deficiency

832

30.5.1.4 Serum Zinc and Zinc Deficiency

832

30.5.1.5 Iron and Zinc Interaction

836

30.5.1.6 Other Micronutrients

836

30.5.2 Growth

837

30.5.3 Morbidity and Mortality

840

30.5.3.1 Evidence from Reviewed Studies

840

30.5.3.2 Could Vitamin and Mineral Supplementation Increase Morbidity?

841

30.5.3.3 Other Ways to Reduce Morbidity

842

30.5.4 Development (Cognitive, Learning Ability)

843

30.6 Effectiveness of Multivitamin and Mineral Supplements for Children

843

30.7 Issues to be Considered for Programs That Provide Vitamins and Minerals

844

30.7.1 Dosage and Kind of Preparation

844

30.7.2 Duration and Frequency of Distribution

845

30.7.3 Supplementation in the Case of Infectious Diseases, Including Malaria

845

30.7.4 Concurrent Supplementation with Other Vitamin and Mineral Supplements or Fortified Foods

846

30.8 Conclusions and Recommendations

846

References

848

Chapter 31

854

How Much Do Data Influence Programs for Health and Nutrition?

854

31.1 Introduction

854

31.1.1 Paradigm Shifts in the Field of Public Health/Nutrition

855

31.1.2 Data to Inform Public Health/Nutrition Programming

857

31.2 Design and Implementation of a Surveillance System

858

31.2.1 Conceptual Model, Indicators, and Questionnaire

860

31.2.2 Sampling

862

31.2.3 Quality Control

863

31.2.4 Data Entry, Data Cleaning, and Data Analysis

864

31.3 Communicating the Results

865

31.4 Identifying Priorities for and Monitoring of Programs: Use of Surveillance Data

866

31.4.1 Vitamin A Capsule Distribution

866

31.4.2 Vaccination Programs

867

31.4.3 Food Fortification

868

31.4.4 Assessing a Program’s Impact Under Real-Life Circumstances

869

31.5 Understanding Causes of Malnutrition: Surveillance Findings

870

31.5.1 Factors Related to Child Malnutrition in Bangladesh

870

31.5.2 Effectiveness of Homestead Food Production

871

31.5.3 Macroeconomic Policies and Malnutrition

872

31.5.4 Indicators for Impact of Crises on Health and Nutrition

872

31.5.5 Dual Burden of Overweight and Obesity

874

31.5.6 Effects of Parental Smoking on Malnutrition and Childhood Mortality

875

31.5.7 Parental Education: Every Year Counts

876

31.6 Conclusions and Recommendations

876

References

877

Chapter 32

882

The Economics of Nutritional Interventions

882

32.1 Introduction

882

32.2 The Costs of Undernutrition

883

32.3 The Costs of Nutrition Interventions

888

32.4 Cost-Effectiveness and Benefit: Cost of Nutrition Interventions

890

32.5 Conclusions

891

References

893

Chapter 33

896

Ethics in Public Health Research

896

33.1 Introduction

896

33.2 Basic Ethical Principles

897

33.2.1 Respect for Persons

897

33.2.2 Beneficence

898

33.2.3 Justice

898

33.3 Application of Ethical Principles

899

33.3.1 Informed Consent

899

Case Study 33.1

900

33.3.2 Confidentiality

902

Case Study 33.2

902

33.3.3 Standards of Care

903

Case Study 33.3

904

33.3.4 Responsibility to the Study Community After Completion of Research

905

Case Study 33.4

906

33.4 Ethical Review Processes

908

33.5 Conclusions

909

References

909

Chapter 34

910

Beyond Partial Analysis

910

34.1 Introduction

910

34.2 Public Policy Analysis

912

34.2.1 The Technical Frame

913

34.2.1.1 Causal Analysis

913

34.2.1.2 Analysis of Interventions

915

34.2.2 The Economic Frame

916

34.2.3 The Social/Normative Frame

919

34.2.4 The Political Frame

922

34.2.5 The Administrative/Organizational Frame

924

34.2.6 The Legal Frame

927

34.2.7 Multiple/Integrative Frames

928

34.3 Implications for Truly "Public" Health and Nutrition

929

34.3.1 Implications for Practice

930

34.3.2 Implications for Research

931

34.3.3 Implications for Training

933

34.4 Conclusions

934

References

935

Index

938