Suchen und Finden
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
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