Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 79
Filtrar
Mais filtros

Tipo de documento
Intervalo de ano de publicação
1.
J Nutr ; 152(4): 1070-1081, 2022 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-35015882

RESUMO

BACKGROUND: Maternal nutrition influences fetal development and may permanently alter ("program") offspring body composition and metabolism, thereby influencing later risk of diabetes and cardiovascular (cardiometabolic) disease. The prevalence of cardiometabolic disease is rising rapidly in India. OBJECTIVES: To test the hypothesis that supplementing low-income Indian women with micronutrient-rich foods preconceptionally and during pregnancy has a beneficial impact on the children's body composition and cardiometabolic risk marker profiles. METHODS: Follow-up of 1255 children aged 5-10 y whose mothers took part in the Mumbai Maternal Nutrition Project [Project "SARAS"; International Standard Randomised Controlled Trial Number (ISRCTN)62811278]. Mothers were randomly assigned to receive a daily micronutrient-rich snack or a control snack of lower micronutrient content, both made from local foods, in addition to normal diet, from before pregnancy until delivery. Children's body composition was assessed using anthropometry and DXA. Their blood pressure, plasma glucose, insulin, and lipid concentrations were measured. Outcomes were compared between allocation groups with and without adjustment for confounding factors. RESULTS: Overall, 15% of children were stunted, 34% were wasted, and 3% were overweight. In the intention-to-treat analysis, there were no differences in body composition or risk markers between children in the intervention and control groups. Among children whose mothers started supplementation ≥3 mo before conception (the "per protocol" sample) the intervention increased adiposity among girls, but not boys. BMI in girls was increased relative to controls by 2% (95% CI: 1, 4; P = 0.01); fat mass index by 10% (95% CI: 3, 18; P = 0.004); and percent fat by 7% (95% CI: 1, 13; P = 0.01) unadjusted, with similar results in adjusted models. CONCLUSIONS: Overall, supplementing women with micronutrient-rich foods from before pregnancy until delivery did not alter body composition or cardiometabolic risk markers in the children. Subgroup analyses showed that, if started ≥3 mo before conception, supplementation may increase adiposity among female children.


Assuntos
Composição Corporal , Doenças Cardiovasculares , Antropometria , Composição Corporal/fisiologia , Índice de Massa Corporal , Doenças Cardiovasculares/prevenção & controle , Criança , Pré-Escolar , Feminino , Humanos , Fenômenos Fisiológicos da Nutrição Materna , Gravidez
2.
J Nutr ; 152(4): 1070-1081, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-36967164

RESUMO

BACKGROUND: Maternal nutrition influences fetal development and may permanently alter ("program") offspring body composition and metabolism, thereby influencing later risk of diabetes and cardiovascular (cardiometabolic) disease. The prevalence of cardiometabolic disease is rising rapidly in India. OBJECTIVES: To test the hypothesis that supplementing low-income Indian women with micronutrient-rich foods preconceptionally and during pregnancy has a beneficial impact on the children's body composition and cardiometabolic risk marker profiles. METHODS: Follow-up of 1255 children aged 5-10 y whose mothers took part in the Mumbai Maternal Nutrition Project [Project "SARAS"; International Standard Randomised Controlled Trial Number (ISRCTN)62811278]. Mothers were randomly assigned to receive a daily micronutrient-rich snack or a control snack of lower micronutrient content, both made from local foods, in addition to normal diet, from before pregnancy until delivery. Children's body composition was assessed using anthropometry and DXA. Their blood pressure, plasma glucose, insulin, and lipid concentrations were measured. Outcomes were compared between allocation groups with and without adjustment for confounding factors. RESULTS: Overall, 15% of children were stunted, 34% were wasted, and 3% were overweight. In the intention-to-treat analysis, there were no differences in body composition or risk markers between children in the intervention and control groups. Among children whose mothers started supplementation ≥3 mo before conception (the "per protocol" sample) the intervention increased adiposity among girls, but not boys. BMI in girls was increased relative to controls by 2% (95% CI: 1, 4; P = 0.01); fat mass index by 10% (95% CI: 3, 18; P = 0.004); and percent fat by 7% (95% CI: 1, 13; P = 0.01) unadjusted, with similar results in adjusted models. CONCLUSIONS: Overall, supplementing women with micronutrient-rich foods from before pregnancy until delivery did not alter body composition or cardiometabolic risk markers in the children. Subgroup analyses showed that, if started ≥3 mo before conception, supplementation may increase adiposity among female children.


Assuntos
Doenças Cardiovasculares , Obesidade , Gravidez , Humanos , Feminino , Criança , Obesidade/epidemiologia , Composição Corporal , Mães , Micronutrientes , Doenças Cardiovasculares/prevenção & controle , Índice de Massa Corporal
3.
Crit Rev Food Sci Nutr ; 60(8): 1265-1289, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-30882230

RESUMO

Background: Health researchers may struggle to choose suitable validated dietary assessment tools (DATs) for their target population. The aim of this review was to identify and collate information on validated UK DATs and validation studies for inclusion on a website to support researchers to choose appropriate DATs.Design: A systematic review of reviews of DATs was undertaken. DATs validated in UK populations were extracted from the studies identified. A searchable website was designed to display these data. Additionally, mean differences and limits of agreement between test and comparison methods were summarized by a method, weighting by sample size.Results: Over 900 validation results covering 5 life stages, 18 nutrients, 6 dietary assessment methods, and 9 validation method types were extracted from 63 validated DATs which were identified from 68 reviews. These were incorporated into www.nutritools.org. Limits of agreement were determined for about half of validations. Thirty four DATs were FFQs. Only 17 DATs were validated against biomarkers, and only 19 DATs were validated in infant/children/adolescents.Conclusions: The interactive www.nutritools.org website holds extensive validation data identified from this review and can be used to guide researchers to critically compare and choose a suitable DAT for their research question, leading to improvement of nutritional epidemiology research.


Assuntos
Dieta/normas , Internet , Avaliação Nutricional , Pesquisadores , Humanos , Reprodutibilidade dos Testes , Literatura de Revisão como Assunto , Reino Unido
4.
Crit Rev Food Sci Nutr ; 58(1): 37-61, 2018 Jan 02.
Artigo em Inglês | MEDLINE | ID: mdl-25486107

RESUMO

OBJECTIVE: To carry out an inventory on the availability, challenges, and needs of dietary assessment (DA) methods in Africa as a pre-requisite to provide evidence, and set directions (strategies) for implementing common dietary methods and support web-research infrastructure across countries. METHODS: The inventory was performed within the framework of the "Africa's Study on Physical Activity and Dietary Assessment Methods" (AS-PADAM) project. It involves international institutional and African networks. An inventory questionnaire was developed and disseminated through the networks. Eighteen countries responded to the dietary inventory questionnaire. RESULTS: Various DA tools were reported in Africa; 24-Hour Dietary Recall and Food Frequency Questionnaire were the most commonly used tools. Few tools were validated and tested for reliability. Face-to-face interview was the common method of administration. No computerized software or other new (web) technologies were reported. No tools were standardized across countries. CONCLUSIONS: The lack of comparable DA methods across represented countries is a major obstacle to implement comprehensive and joint nutrition-related programmes for surveillance, programme evaluation, research, and prevention. There is a need to develop new or adapt existing DA methods across countries by employing related research infrastructure that has been validated and standardized in other settings, with the view to standardizing methods for wider use.


Assuntos
Dieta , Avaliação Nutricional , Distúrbios Nutricionais/prevenção & controle , África , Registros de Dieta , Inquéritos sobre Dietas/métodos , Inquéritos sobre Dietas/normas , Exercício Físico , Humanos , Rememoração Mental , Política Nutricional , Estado Nutricional , Reprodutibilidade dos Testes , Projetos de Pesquisa/normas , Software , Inquéritos e Questionários
5.
Matern Child Nutr ; 14(1)2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-28251804

RESUMO

Improving micronutrient intakes of under-nourished mothers in low- and middle-income countries increases birth weight, but there is little data on the nature and timing during gestation of any effects on fetal growth. Ultrasound measures of fetal size were used to determine whether and when a food-based supplement affected fetal growth. Non-pregnant women living in Mumbai slums, India (N = 6,513), were randomly assigned to receive either a daily micronutrient-rich snack containing green leafy vegetables, fruit, and milk (treatment) or a snack made from lower-micronutrient vegetables (control) in addition to their usual diet from before pregnancy until delivery. From 2,291 pregnancies, the analysis sample comprised 1,677 fetuses (1,335 fetuses of women supplemented for ≥3 months before conception). First-trimester (median: 10 weeks, interquartile range: 9-12 weeks) fetal crown-rump length was measured. Fetal head circumference, biparietal diameter, femur length, and abdominal circumference were measured during the second (19, 19-20 weeks) and third trimesters (29, 28-30 weeks). The intervention had no effect on fetal size or growth at any stage of pregnancy. In the second trimester, there were interactions between parity and allocation group for biparietal diameter (p = .02) and femur length (p = .04) with both being smaller among fetuses of primiparous women and larger among those of multiparous women, in the treatment group compared with the controls. Overall, a micronutrient-rich supplement did not increase standard ultrasound measures of fetal size and growth at any stage of pregnancy. Additional ultrasound measures of fetal soft tissues (fat and muscle) may be informative.


Assuntos
Dieta , Desenvolvimento Fetal , Micronutrientes/administração & dosagem , Cuidado Pré-Natal/métodos , Ultrassonografia Pré-Natal , Adulto , Animais , Antropometria , Estatura Cabeça-Cóccix , Suplementos Nutricionais , Feminino , Feto/diagnóstico por imagem , Frutas , Idade Gestacional , Humanos , Índia , Masculino , Fenômenos Fisiológicos da Nutrição Materna , Leite , Estado Nutricional , Áreas de Pobreza , Cuidado Pré-Concepcional/métodos , Gravidez , Lanches , Verduras
6.
Cancer Causes Control ; 28(3): 247-258, 2017 03.
Artigo em Inglês | MEDLINE | ID: mdl-28210884

RESUMO

PURPOSE: The aim of this paper is to review the evidence of the association between energy balance and obesity. METHODS: In December 2015, the International Agency for Research on Cancer (IARC), Lyon, France convened a Working Group of international experts to review the evidence regarding energy balance and obesity, with a focus on Low and Middle Income Countries (LMIC). RESULTS: The global epidemic of obesity and the double burden, in LMICs, of malnutrition (coexistence of undernutrition and overnutrition) are both related to poor quality diet and unbalanced energy intake. Dietary patterns consistent with a traditional Mediterranean diet and other measures of diet quality can contribute to long-term weight control. Limiting consumption of sugar-sweetened beverages has a particularly important role in weight control. Genetic factors alone cannot explain the global epidemic of obesity. However, genetic, epigenetic factors and the microbiota could influence individual responses to diet and physical activity. CONCLUSION: Energy intake that exceeds energy expenditure is the main driver of weight gain. The quality of the diet may exert its effect on energy balance through complex hormonal and neurological pathways that influence satiety and possibly through other mechanisms. The food environment, marketing of unhealthy foods and urbanization, and reduction in sedentary behaviors and physical activity play important roles. Most of the evidence comes from High Income Countries and more research is needed in LMICs.


Assuntos
Metabolismo Energético , Obesidade/epidemiologia , Bebidas , Colo/microbiologia , Países em Desenvolvimento/estatística & dados numéricos , Ingestão de Energia , Exercício Físico , Comportamento Alimentar , Humanos , Renda , Desnutrição/epidemiologia , Microbiota/fisiologia , Obesidade/genética , Obesidade/microbiologia , Aumento de Peso
7.
Global Health ; 13(1): 35, 2017 06 19.
Artigo em Inglês | MEDLINE | ID: mdl-28629424

RESUMO

BACKGROUND: Collection of reliable and comparable individual food consumption data is of primary importance to better understand, control and monitor malnutrition and its related comorbidities in low- and middle-income countries (LMICs), including in Africa. The lack of standardised dietary tools and their related research support infrastructure remains a major obstacle to implement concerted and region-specific research and action plans worldwide. Citing the magnitude and importance of this challenge, the International Agency for Research on Cancer (IARC/WHO) launched the "Global Nutrition Surveillance initiative" to pilot test the use of a standardized 24-h dietary recall research tool (GloboDiet), validated in Europe, in other regions. In this regard, the development of the GloboDiet-Africa can be optimised by better understanding of the local specific methodological needs, barriers and opportunities. The study aimed to evaluate the standardized 24-h dietary recall research tool (GloboDiet) as a possible common methodology for research and surveillance across Africa. METHODS: A consultative panel of African and international experts in dietary assessment participated in six e-workshop sessions. They completed an in-depth e-questionnaire to evaluate the GloboDiet dietary methodology before and after participating in the e-workshop. RESULTS: The 29 experts expressed their satisfaction on the potential of the software to address local specific needs when evaluating the main structure of the software, the stepwise approach for data collection and standardisation concept. Nevertheless, additional information to better describe local foods and recipes, as well as particular culinary patterns (e.g. mortar pounding), were proposed. Furthermore, food quantification in shared-plates and -bowls eating situations and interviewing of populations with low literacy skills, especially in rural settings, were acknowledged as requiring further specific considerations and appropriate solutions. CONCLUSIONS: An overall positive evaluation of the GloboDiet methodology by both African and international experts, supports the flexibility and potential applicability of this tool in diverse African settings and sets a positive platform for improved dietary monitoring and surveillance. Following this evaluation, prerequisite for future implementation and/or adaptation of GloboDiet in Africa, rigorous and robust capacity building as well as knowledge transfer will be required to roadmap a stepwise approach to implement this methodology across pilot African countries/regions.


Assuntos
Registros de Dieta , Rememoração Mental , Inquéritos Nutricionais/métodos , África , Dieta , Comportamento Alimentar , Alimentos , Humanos , Inquéritos Nutricionais/normas , Inquéritos e Questionários
8.
BMC Med ; 14: 90, 2016 Jun 16.
Artigo em Inglês | MEDLINE | ID: mdl-27306908

RESUMO

BACKGROUND: Multiple micronutrient supplementation for pregnant women reduces low birth weight and has been recommended in low- and middle-income countries (LMICs) to improve child survival, growth and health. We aimed to review the evidence from long-term follow-up studies of multiple micronutrient supplementation beginning in the later first or second trimester. METHODS: We searched systematically for follow-up reports from all trials in a 2015 Cochrane review of multiple micronutrient supplementation in pregnancy. The intervention comprised three or more micronutrients and the comparison group received iron (60 mg) and folic acid (400 µg), where possible. Median gestation of commencement varied from 9 to 23 weeks. Primary outcomes were offspring mortality, height, weight and head circumference, presented as unadjusted differences in means or proportions (intervention minus control). Secondary outcomes included other anthropometry, body composition, blood pressure, and cognitive and lung function. RESULTS: We found 20 follow-up reports from nine trials (including 88,057 women recruited), six of which used the UNIMMAP supplement designed to provide recommended daily allowances. The age of follow-up ranged from 0 to 9 years. Data for mortality estimates were available from all trials. Meta-analysis showed no difference in mortality (risk difference -0.05 per 1000 livebirths; 95 % CI, -5.25 to 5.15). Six trials investigated anthropometry and found no difference at follow-up in weight-for-age z score (0.02; 95 % CI, -0.03 to 0.07), height-for-age z score (0.01; 95 % CI, -0.04 to 0.06), or head circumference (0.11 cm; 95 % CI, -0.03 to 0.26). No differences were seen in body composition, blood pressure, or respiratory outcomes. No consistent differences were seen in cognitive function scores. CONCLUSIONS: There is currently no evidence that, compared with iron and folic acid supplementation, routine maternal antenatal multiple micronutrient supplementation improves childhood survival, growth, body composition, blood pressure, respiratory or cognitive outcomes.


Assuntos
Suplementos Nutricionais , Micronutrientes/uso terapêutico , Efeitos Tardios da Exposição Pré-Natal , Adulto , Feminino , Ácido Fólico/uso terapêutico , Humanos , Recém-Nascido , Ferro/uso terapêutico , Gravidez
9.
J Nutr ; 146(7): 1453S-60S, 2016 07.
Artigo em Inglês | MEDLINE | ID: mdl-27281802

RESUMO

BACKGROUND: Prospective observational studies suggest that maternal diets rich in leafy green vegetables and fruit may help prevent gestational diabetes mellitus (GDM). OBJECTIVE: Our objective was to test whether increasing women's dietary intake of leafy green vegetables, fruit, and milk before conception and throughout pregnancy reduced their risk of GDM. METHODS: Project SARAS ("excellent") (2006-2012) was a nonblinded, individually randomized, controlled trial in women living in slums in the city of Mumbai, India. The interventions included a daily snack made from leafy green vegetables, fruit, and milk for the treatment group or low-micronutrient vegetables (e.g., potato and onion) for the control group, in addition to the usual diet. Results for the primary outcome, birth weight, have been reported. Women were invited to take an oral-glucose-tolerance test (OGTT) at 28-32 wk gestation to screen for GDM (WHO 1999 criteria). The prevalence of GDM was compared between the intervention and control groups, and Kernel density analysis was used to compare distributions of 120-min plasma glucose concentrations between groups. RESULTS: Of 6513 women randomly assigned, 2291 became pregnant; of these, 2028 reached a gestation of 28 wk, 1008 (50%) attended for an OGTT, and 100 (9.9%) had GDM. In an intention-to-treat analysis, the prevalence of GDM was reduced in the treatment group (7.3% compared with 12.4% in controls; OR: 0.56; 95% CI: 0.36, 0.86; P = 0.008). The reduction in GDM remained significant after adjusting for prepregnancy adiposity and fat or weight gain during pregnancy. Kernel density analysis showed that this was explained by the fact that fewer women in the treatment group had a 2-h glucose concentration in the range 7.5-10.0 mmol/L. CONCLUSIONS: In low-income settings, in which women have a low intake of micronutrient-rich foods, improving dietary micronutrient quality by increasing intake of leafy green vegetables, fruit, and/or milk may have an important protective effect against the development of GDM. This trial was registered at www.controlled-trials.com as ISRCTN62811278.


Assuntos
Diabetes Gestacional/prevenção & controle , Frutas , Leite , Verduras , Animais , Diabetes Gestacional/epidemiologia , Feminino , Humanos , Índia/epidemiologia , Gravidez
10.
Public Health Nutr ; 19(11): 2090-100, 2016 08.
Artigo em Inglês | MEDLINE | ID: mdl-26857753

RESUMO

OBJECTIVE: To describe why and how capacity-building systems for scaling up nutrition programmes should be constructed in low- and middle-income countries (LMIC). DESIGN: Position paper with task force recommendations based on literature review and joint experience of global nutrition programmes, public health nutrition (PHN) workforce size, organization, and pre-service and in-service training. SETTING: The review is global but the recommendations are made for LMIC scaling up multisectoral nutrition programmes. SUBJECTS: The multitude of PHN workers, be they in the health, agriculture, education, social welfare, or water and sanitation sector, as well as the community workers who ensure outreach and coverage of nutrition-specific and -sensitive interventions. RESULTS: Overnutrition and undernutrition problems affect at least half of the global population, especially those in LMIC. Programme guidance exists for undernutrition and overnutrition, and priority for scaling up multisectoral programmes for tackling undernutrition in LMIC is growing. Guidance on how to organize and scale up such programmes is scarce however, and estimates of existing PHN workforce numbers - although poor - suggest they are also inadequate. Pre-service nutrition training for a PHN workforce is mostly clinical and/or food science oriented and in-service nutrition training is largely restricted to infant and young child nutrition. CONCLUSIONS: Unless increased priority and funding is given to building capacity for scaling up nutrition programmes in LMIC, maternal and child undernutrition rates are likely to remain high and nutrition-related non-communicable diseases to escalate. A hybrid distance learning model for PHN workforce managers' in-service training is urgently needed in LMIC.


Assuntos
Fortalecimento Institucional , Ciências da Nutrição/organização & administração , Saúde Pública , Criança , Currículo , Humanos
11.
Br J Nutr ; 113(5): 813-21, 2015 Mar 14.
Artigo em Inglês | MEDLINE | ID: mdl-25677713

RESUMO

Intakes of micronutrient-rich foods are low among Indian women of reproductive age. We investigated whether consumption of a food-based micronutrient-rich snack increased markers of blood micronutrient concentrations when compared with a control snack. Non-pregnant women (n 222) aged 14-35 years living in a Mumbai slum were randomised to receive a treatment snack (containing green leafy vegetables, dried fruit and whole milk powder), or a control snack containing foods of low micronutrient content such as wheat flour, potato and tapioca. The snacks were consumed under observation 6 d per week for 12 weeks, compliance was recorded, and blood was collected at 0 and 12 weeks. Food-frequency data were collected at both time points. Compliance (defined as the proportion of women who consumed ≥ 3 snacks/week) was >85 % in both groups. We assessed the effects of group allocation on 12-week nutrient concentrations using ANCOVA models with respective 0-week concentrations, BMI, compliance, standard of living, fruit and green leafy vegetable consumption and use of synthetic nutrients as covariates. The treatment snack significantly increased ß-carotene concentrations (treatment effect: 47·1 nmol/l, 95 % CI 6·5, 87·7). There was no effect of group allocation on concentrations of ferritin, retinol, ascorbate, folate or vitamin B12. The present study shows that locally sourced foods can be made into acceptable snacks that may increase serum ß-carotene concentrations among women of reproductive age. However, no increase in circulating concentrations of the other nutrients measured was observed.


Assuntos
Deficiências Nutricionais/dietoterapia , Frutas , Micronutrientes/deficiência , Proteínas do Leite/uso terapêutico , Folhas de Planta , Lanches , Verduras , Adolescente , Adulto , Biomarcadores/sangue , Deficiências Nutricionais/economia , Deficiências Nutricionais/etnologia , Deficiências Nutricionais/etiologia , Dieta/efeitos adversos , Dieta/economia , Dieta/etnologia , Terapia Diretamente Observada , Feminino , Alimentos em Conserva , Humanos , Índia , Micronutrientes/sangue , Micronutrientes/economia , Micronutrientes/uso terapêutico , Estado Nutricional/etnologia , Cooperação do Paciente/etnologia , Pobreza , Saúde da População Urbana/etnologia , Adulto Jovem , beta Caroteno/sangue , beta Caroteno/deficiência , beta Caroteno/economia , beta Caroteno/uso terapêutico
12.
Public Health Nutr ; 18(4): 596-609, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24866058

RESUMO

OBJECTIVE: There is evidence that subclinical vitamin B12 (B12) deficiency is common in India. Vegetarianism is prevalent and therefore meat consumption is low. Our objective was to explore the contribution of B12-source foods and maternal B12 status during pregnancy to plasma B12 concentrations. DESIGN: Maternal plasma B12 concentrations were measured during pregnancy. Children's dietary intakes and plasma B12 concentrations were measured at age 9.5 years; B12 and total energy intakes were calculated using food composition databases. We used linear regression to examine associations between maternal B12 status and children's intakes of B12 and B12-source foods, and children's plasma B12 concentrations. SETTING: South Indian city of Mysore and surrounding rural areas. SUBJECTS: Children from the Mysore Parthenon Birth Cohort (n 512, 47.1 % male). RESULTS: Three per cent of children were B12 deficient (<150 pmol/l). A further 14 % had 'marginal' B12 concentrations (150-221 pmol/l). Children's total daily B12 intake and consumption frequencies of meat and fish, and micronutrient-enriched beverages were positively associated with plasma B12 concentrations (P=0.006, P=0.01 and P=0.04, respectively, adjusted for socio-economic indicators and maternal B12 status). Maternal pregnancy plasma B12 was associated with children's plasma B12 concentrations, independent of current B12 intakes (P<0.001). Milk and curd (yoghurt) intakes were unrelated to B12 status. CONCLUSIONS: Meat and fish are important B12 sources in this population. Micronutrient-enriched beverages appear to be important sources in our cohort, but their high sugar content necessitates care in their recommendation. Improving maternal B12 status in pregnancy may improve Indian children's status.


Assuntos
Dieta/estatística & dados numéricos , Estado Nutricional , Deficiência de Vitamina B 12/etiologia , Vitamina B 12/sangue , Complexo Vitamínico B/sangue , Adulto , Bebidas/estatística & dados numéricos , Criança , Estudos de Coortes , Bases de Dados Factuais/estatística & dados numéricos , Ingestão de Energia , Feminino , Alimentos Fortificados/estatística & dados numéricos , Humanos , Índia/epidemiologia , Modelos Lineares , Masculino , Carne/estatística & dados numéricos , Gravidez , Classe Social , Deficiência de Vitamina B 12/epidemiologia
13.
J Health Popul Nutr ; 33(1): 146-56, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25995731

RESUMO

Alcohol consumption plays an important role in the health transition associated with urbanization in developing countries. Thus, reliable tools for assessing alcohol intake levels are necessary. We compared two biological markers of alcohol consumption and self-reported alcohol intakes in participants from urban and rural South African communities. This cross-sectional epidemiological survey was part of the North West Province, South African leg of the 12-year International Prospective Urban and Rural Epidemiology (PURE) study which investigates the health transition in urban and rural subjects. A total of 2,010 apparently healthy African volunteers (35 years and older) were recruited from a sample of 6,000 randomly-selected households. Alcohol consumption was assessed through self-reports (24-hour recalls and quantitative food frequency questionnaire) and by two biological markers: percentage carbohydrate-deficient transferrin (%CDT) and gamma-glutamyl transferase (GGT). Of the 716 men and 1,192 women volunteers, 64% and 33% respectively reported regular alcohol consumption. Reported mean habitual intakes of drinker men and women were 29.9 (± 30.0) and 23.3 (± 29.1) g of pure alcohol per day. Reported habitual intake of the whole group correlated positively and significantly with both %CDT (R=0.32; p ≤ 0.01) and GGT (R=0.43; p ≤ 0.01). The correlation between the two biomarkers was low (0.211; p ≤ 0.01). GGT and %CDT values should be interpreted with care in Africans as self-reported non-drinker men and women had elevated levels of GGT (19% and 26%) and %CDT (48% and 38%). A need exists for a more specific biological marker for alcohol consumption in black Africans.


Assuntos
Consumo de Bebidas Alcoólicas/metabolismo , Transferrina/análogos & derivados , gama-Glutamiltransferase/metabolismo , Adulto , Idoso , Consumo de Bebidas Alcoólicas/etnologia , Biomarcadores/metabolismo , População Negra , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Autorrelato , África do Sul , Transferrina/metabolismo
14.
J Allergy Clin Immunol ; 133(2): 511-9, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-23891269

RESUMO

BACKGROUND: After an era of only considering the allergenic properties of the infant diet and allergy outcomes, emerging data suggest that the overall composition of the infant diet might be a more important factor in the development of allergic disease. OBJECTIVE: We sought to assess the relationship between infant dietary patterns in the first year of life and development of food allergy by age 2 years. METHODS: We performed a nested, case-control, within-cohort study. Mothers kept prospective food diaries for the first year of life, with resultant diet data coded in a unique manner to produce new variables, which were then analyzed by using principal component analysis to identify infant feeding patterns within the study subjects. RESULTS: Principal component analysis of diet diary data from 41 infants given a diagnosis of food allergy based on results of double-blind, placebo-controlled food challenges in the first 2 years of life and their 82 age-matched control subjects provided an early infant diet pattern and an ongoing diet pattern. There was no difference between the study groups for the early infant diet pattern, but for the ongoing diet pattern, there was a significant difference between the groups (P = .001). This ongoing dietary pattern was characterized by higher intake of fruits, vegetables, and home-prepared foods, with control infants having a significantly higher healthy infant diet dietary pattern score than children who had a food allergy. CONCLUSIONS: An infant diet consisting of high levels of fruits, vegetables, and home-prepared foods is associated with less food allergy by the age of 2 years.


Assuntos
Dieta , Hipersensibilidade Alimentar/epidemiologia , Estudos de Casos e Controles , Registros de Dieta , Feminino , Hipersensibilidade Alimentar/diagnóstico , Frutas , Humanos , Lactente , Masculino , Estudos Prospectivos , Verduras
15.
Matern Child Nutr ; 11(4): 703-11, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26419217

RESUMO

Breastfeeding duration and exclusive breastfeeding rates are universally below those recommended by World Health Organization. Due to limitations and challenges associated with researching breastfeeding characteristics, the times when exclusivity is likely to be lost and when women are most likely to discontinue breastfeeding have not yet been identified. Prospective food diaries allow reliable description of the dynamics of breastfeeding to be made to help identify these key time periods. Food diaries detailing intake from birth until the cessation of breastfeeding were analysed for 718 infants recruited into a national arm of an international multicentre birth cohort study (EuroPrevall). Analyses included linear regression analysis and Kaplan-Meier time course analysis. Breastfeeding and exclusive breastfeeding cessation rates for younger mothers (<25 years) are high in the first few weeks after delivery but slow markedly in the period 10-12 weeks after delivery. Cessation rates are consistent from 0 to 26 weeks in older mothers. This difference in feeding patterns led to significant differences between the two different age groups at 26 weeks for breastfeeding (P = 0.006) and exclusive breastfeeding at 8 weeks (P = 0.009). Forty-nine per cent of younger mothers (<25 years) stopped breastfeeding before their infant was 3 weeks old. To increase breastfeeding duration, further work is required to investigate the attitudes and perceptions associated with such high breastfeeding cessation rates in younger mothers during these very early post-natal weeks.


Assuntos
Aleitamento Materno/estatística & dados numéricos , Registros de Dieta , Adulto , Feminino , Humanos , Lactente , Fórmulas Infantis , Recém-Nascido , Modelos Lineares , Mães/educação , Mães/psicologia , Estudos Prospectivos , Fatores Socioeconômicos , Reino Unido , Adulto Jovem
16.
Int J Behav Nutr Phys Act ; 11: 67, 2014 May 21.
Artigo em Inglês | MEDLINE | ID: mdl-24886516

RESUMO

BACKGROUND: There is a need for cost-effective weight management interventions that primary care can deliver to reduce the morbidity caused by obesity. Automated web-based interventions might provide a solution, but evidence suggests that they may be ineffective without additional human support. The main aim of this study was to carry out a feasibility trial of a web-based weight management intervention in primary care, comparing different levels of nurse support, to determine the optimal combination of web-based and personal support to be tested in a full trial. METHODS: This was an individually randomised four arm parallel non-blinded trial, recruiting obese patients in primary care. Following online registration, patients were randomly allocated by the automated intervention to either usual care, the web-based intervention only, or the web-based intervention with either basic nurse support (3 sessions in 3 months) or regular nurse support (7 sessions in 6 months). The main outcome measure (intended as the primary outcome for the main trial) was weight loss in kg at 12 months. As this was a feasibility trial no statistical analyses were carried out, but we present means, confidence intervals and effect sizes for weight loss in each group, uptake and retention, and completion of intervention components and outcome measures. RESULTS: All randomised patients were included in the weight loss analyses (using Last Observation Carried Forward). At 12 months mean weight loss was: usual care group (n = 43) 2.44 kg; web-based only group (n = 45) 2.30 kg; basic nurse support group (n = 44) 4.31 kg; regular nurse support group (n = 47) 2.50 kg. Intervention effect sizes compared with usual care were: d = 0.01 web-based; d = 0.34 basic nurse support; d = 0.02 regular nurse support. Two practices deviated from protocol by providing considerable weight management support to their usual care patients. CONCLUSIONS: This study demonstrated the feasibility of delivering a web-based weight management intervention supported by practice nurses in primary care, and suggests that the combination of the web-based intervention with basic nurse support could provide an effective solution to weight management support in a primary care context. TRIAL REGISTRATION: Current Controlled Trials ISRCTN31685626.


Assuntos
Internet , Obesidade/terapia , Atenção Primária à Saúde , Programas de Redução de Peso , Adulto , Idoso , Idoso de 80 Anos ou mais , Análise Custo-Benefício , Estudos de Viabilidade , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Enfermeiras e Enfermeiros , Resultado do Tratamento , Adulto Jovem
17.
Public Health Nutr ; 17(3): 682-8, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23651529

RESUMO

OBJECTIVE: To outline a framework and a process for assessing the needs for capacity development to achieve nutrition objectives, particularly those targeting maternal and child undernutrition. DESIGN: Commentary and conceptual framework. SETTING: Low- and middle-income countries. Result A global movement to invest in a package of essential nutrition interventions to reduce maternal and child undernutrition in low- and middle-income countries is building momentum. Capacity to act in nutrition is known to be minimal in most low- and middle-income countries, and there is a need for conceptual clarity about capacity development as a strategic construct and the processes required to realise the ability to achieve population nutrition and health objectives. The framework for nutrition capacity development proposed recognises capacity to be determined by a range of factors across at least four levels, including system, organisational, workforce and community levels. This framework provides a scaffolding to guide systematic assessment of capacity development needs which serves to inform strategic planning for capacity development. CONCLUSIONS: Capacity development is a critical prerequisite for achieving nutrition and health objectives, but is currently constrained by ambiguous and superficial conceptualisations of what capacity development involves and how it can be realised. The current paper provides a framework to assist this conceptualisation, encourage debate and ongoing refinement, and progress capacity development efforts.


Assuntos
Fortalecimento Institucional , Promoção da Saúde/métodos , Avaliação Nutricional , Países Desenvolvidos , Países em Desenvolvimento , Intervenção Médica Precoce , Humanos , Modelos Organizacionais , Ciências da Nutrição/educação , Ciências da Nutrição/organização & administração , Objetivos Organizacionais , Saúde Pública/normas , Desenvolvimento de Pessoal , Local de Trabalho
18.
Matern Child Nutr ; 10(1): 145-58, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23819872

RESUMO

The burden of non-communicable chronic disease (NCD) in India is increasing. Diet and body composition 'track' from childhood into adult life and contribute to the development of risk factors for NCD. Little is known about the diet patterns of Indian children. We aimed to identify diet patterns and study associations with body composition and socio-demographic factors in the Mysore Parthenon Study cohort. We collected anthropometric and demographic data from children aged 9.5 years (n = 538). We also administered a food frequency questionnaire and measured fasting blood concentrations of folate and vitamin B12. Using principal component analysis, we identified two diet patterns. The 'snack and fruit' pattern was characterised by frequent intakes of snacks, fruit, sweetened drinks, rice and meat dishes and leavened breads. The 'lacto-vegetarian' pattern was characterised by frequent intakes of finger millet, vegetarian rice dishes, yoghurt, vegetable dishes and infrequent meat consumption. Adherence to the 'snack and fruit' pattern was associated with season, being Muslim and urban dwelling. Adherence to the lacto-vegetarian pattern was associated with being Hindu, rural dwelling and a lower maternal body mass index. The 'snack and fruit' pattern was negatively associated with the child's adiposity. The lacto-vegetarian pattern was positively associated with blood folate concentration and negatively with vitamin B12 concentration. This study provides new information on correlates of diet patterns in Indian children and how diet relates to nutritional status. Follow-up of these children will be important to determine the role of these differences in diet in the development of risk factors for NCD including body composition.


Assuntos
Dieta , Comportamento Alimentar , Estado Nutricional , Fatores Socioeconômicos , Antropometria , Composição Corporal , Índice de Massa Corporal , Criança , Estudos de Coortes , Impedância Elétrica , Ingestão de Energia , Feminino , Humanos , Índia , Masculino , Micronutrientes/sangue , Análise Multivariada , Avaliação Nutricional , Inquéritos Nutricionais , Inquéritos e Questionários
20.
Public Health Nutr ; 15(11): 1981-8, 2012 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21859511

RESUMO

OBJECTIVE: The present paper describes a model for public health nutrition practice designed to facilitate practice improvement and provide a step-wise approach to assist with workforce development. DESIGN: The bi-cycle model for public health nutrition practice has been developed based on existing cyclical models for intervention management but modified to integrate discrete capacity-building practices. SETTING: Education and practice settings. SUBJECTS: This model will have applications for educators and practitioners. RESULTS: Modifications to existing models have been informed by the authors' observations and experiences as practitioners and educators, and reflect a conceptual framework with applications in workforce development and practice improvement. From a workforce development and educational perspective, the model is designed to reflect adult learning principles, exposing students to experiential, problem-solving and practical learning experiences that reflect the realities of work as a public health nutritionist. In doing so, it assists the development of competency beyond knowing to knowing how, showing how and doing. This progression of learning from knowledge to performance is critical to effective competency development for effective practice. CONCLUSIONS: Public health nutrition practice is dynamic and varied, and models need to be adaptable and applicable to practice context to have utility. The paper serves to stimulate debate in the public health nutrition community, to encourage critical feedback about the validity, applicability and utility of this model in different practice contexts.


Assuntos
Dietética/educação , Educação Profissional em Saúde Pública , Ciências da Nutrição/educação , Padrões de Prática Médica/normas , Competência Profissional , Saúde Pública/educação , Adulto , Fortalecimento Institucional , Formação de Conceito , Humanos , Aprendizagem , Modelos Educacionais
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA