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1.
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
2.
BMJ Open ; 7(3): e013817, 2017 03 31.
Artigo em Inglês | MEDLINE | ID: mdl-28363924

RESUMO

OBJECTIVES: This study examines in a cross-sectional study 'the tobacco control environment' including tobacco policy implementation and its association with quit ratio. SETTING: 545 communities from 17 high-income, upper-middle, low-middle and low-income countries (HIC, UMIC, LMIC, LIC) involved in the Environmental Profile of a Community's Health (EPOCH) study from 2009 to 2014. PARTICIPANTS: Community audits and surveys of adults (35-70 years, n=12 953). PRIMARY AND SECONDARY OUTCOME MEASURES: Summary scores of tobacco policy implementation (cost and availability of cigarettes, tobacco advertising, antismoking signage), social unacceptability and knowledge were associated with quit ratios (former vs ever smokers) using multilevel logistic regression models. RESULTS: Average tobacco control policy score was greater in communities from HIC. Overall 56.1% (306/545) of communities had >2 outlets selling cigarettes and in 28.6% (154/539) there was access to cheap cigarettes (<5cents/cigarette) (3.2% (3/93) in HIC, 0% UMIC, 52.6% (90/171) LMIC and 40.4% (61/151) in LIC). Effective bans (no tobacco advertisements) were in 63.0% (341/541) of communities (81.7% HIC, 52.8% UMIC, 65.1% LMIC and 57.6% LIC). In 70.4% (379/538) of communities, >80% of participants disapproved youth smoking (95.7% HIC, 57.6% UMIC, 76.3% LMIC and 58.9% LIC). The average knowledge score was >80% in 48.4% of communities (94.6% HIC, 53.6% UMIC, 31.8% LMIC and 35.1% LIC). Summary scores of policy implementation, social unacceptability and knowledge were positively and significantly associated with quit ratio and the associations varied by gender, for example, communities in the highest quintile of the combined scores had 5.0 times the quit ratio in men (Odds ratio (OR) 5·0, 95% CI 3.4 to 7.4) and 4.1 times the quit ratio in women (OR 4.1, 95% CI 2.4 to 7.1). CONCLUSIONS: This study suggests that more focus is needed on ensuring the tobacco control policy is actually implemented, particularly in LMICs. The gender-related differences in associations of policy, social unacceptability and knowledge suggest that different strategies to promoting quitting may need to be implemented in men compared to women.


Assuntos
Países Desenvolvidos , Países em Desenvolvimento , Conhecimentos, Atitudes e Prática em Saúde , Política de Saúde , Aceitação pelo Paciente de Cuidados de Saúde , Abandono do Hábito de Fumar , Fumar Tabaco/terapia , Adulto , Idoso , Estudos Transversais , Meio Ambiente , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Razão de Chances , Fumar/efeitos adversos , Fumar/terapia , Inquéritos e Questionários , Produtos do Tabaco , Fumar Tabaco/efeitos adversos
3.
Int J Equity Health ; 15(1): 199, 2016 12 08.
Artigo em Inglês | MEDLINE | ID: mdl-27931255

RESUMO

BACKGROUND: Effective policies to control hypertension require an understanding of its distribution in the population and the barriers people face along the pathway from detection through to treatment and control. One key factor is household wealth, which may enable or limit a household's ability to access health care services and adequately control such a chronic condition. This study aims to describe the scale and patterns of wealth-related inequalities in the awareness, treatment and control of hypertension in 21 countries using baseline data from the Prospective Urban and Rural Epidemiology study. METHODS: A cross-section of 163,397 adults aged 35 to 70 years were recruited from 661 urban and rural communities in selected low-, middle- and high-income countries (complete data for this analysis from 151,619 participants). Using blood pressure measurements, self-reported health and household data, concentration indices adjusted for age, sex and urban-rural location, we estimate the magnitude of wealth-related inequalities in the levels of hypertension awareness, treatment, and control in each of the 21 country samples. RESULTS: Overall, the magnitude of wealth-related inequalities in hypertension awareness, treatment, and control was observed to be higher in poorer than in richer countries. In poorer countries, levels of hypertension awareness and treatment tended to be higher among wealthier households; while a similar pro-rich distribution was observed for hypertension control in countries at all levels of economic development. In some countries, hypertension awareness was greater among the poor (Sweden, Argentina, Poland), as was treatment (Sweden, Poland) and control (Sweden). CONCLUSION: Inequality in hypertension management outcomes decreased as countries became richer, but the considerable variation in patterns of wealth-related inequality - even among countries at similar levels of economic development - underscores the importance of health systems in improving hypertension management for all. These findings show that some, but not all, countries, including those with limited resources, have been able to achieve more equitable management of hypertension; and strategies must be tailored to national contexts to achieve optimal impact at population level.


Assuntos
Países Desenvolvidos , Países em Desenvolvimento , Disparidades em Assistência à Saúde , Hipertensão/terapia , Renda , Pobreza , Classe Social , Adulto , Idoso , Argentina , Conscientização , Pressão Sanguínea , Estudos Transversais , Características da Família , Feminino , Inquéritos Epidemiológicos , Humanos , Hipertensão/economia , Masculino , Pessoa de Meia-Idade , Polônia , Estudos Prospectivos , População Rural , Autorrelato , Suécia , População Urbana
4.
Lancet Glob Health ; 4(10): e695-703, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-27567348

RESUMO

BACKGROUND: Several international guidelines recommend the consumption of two servings of fruits and three servings of vegetables per day, but their intake is thought to be low worldwide. We aimed to determine the extent to which such low intake is related to availability and affordability. METHODS: We assessed fruit and vegetable consumption using data from country-specific, validated semi-quantitative food frequency questionnaires in the Prospective Urban Rural Epidemiology (PURE) study, which enrolled participants from communities in 18 countries between Jan 1, 2003, and Dec 31, 2013. We documented household income data from participants in these communities; we also recorded the diversity and non-sale prices of fruits and vegetables from grocery stores and market places between Jan 1, 2009, and Dec 31, 2013. We determined the cost of fruits and vegetables relative to income per household member. Linear random effects models, adjusting for the clustering of households within communities, were used to assess mean fruit and vegetable intake by their relative cost. FINDINGS: Of 143 305 participants who reported plausible energy intake in the food frequency questionnaire, mean fruit and vegetable intake was 3·76 servings (95% CI 3·66-3·86) per day. Mean daily consumption was 2·14 servings (1·93-2·36) in low-income countries (LICs), 3·17 servings (2·99-3·35) in lower-middle-income countries (LMICs), 4·31 servings (4·09-4·53) in upper-middle-income countries (UMICs), and 5·42 servings (5·13-5·71) in high-income countries (HICs). In 130 402 participants who had household income data available, the cost of two servings of fruits and three servings of vegetables per day per individual accounted for 51·97% (95% CI 46·06-57·88) of household income in LICs, 18·10% (14·53-21·68) in LMICs, 15·87% (11·51-20·23) in UMICs, and 1·85% (-3·90 to 7·59) in HICs (ptrend=0·0001). In all regions, a higher percentage of income to meet the guidelines was required in rural areas than in urban areas (p<0·0001 for each pairwise comparison). Fruit and vegetable consumption among individuals decreased as the relative cost increased (ptrend=0·00040). INTERPRETATION: The consumption of fruit and vegetables is low worldwide, particularly in LICs, and this is associated with low affordability. Policies worldwide should enhance the availability and affordability of fruits and vegetables. FUNDING: Population Health Research Institute, the Canadian Institutes of Health Research, Heart and Stroke Foundation of Ontario, AstraZeneca (Canada), Sanofi-Aventis (France and Canada), Boehringer Ingelheim (Germany and Canada), Servier, GlaxoSmithKline, Novartis, King Pharma, and national or local organisations in participating countries.


Assuntos
Custos e Análise de Custo , Países Desenvolvidos , Países em Desenvolvimento , Dieta/economia , Comportamento Alimentar , Abastecimento de Alimentos/economia , Pobreza , Adulto , Idoso , Inquéritos sobre Dietas , Características da Família , Feminino , Frutas , Humanos , Renda , Masculino , Pessoa de Meia-Idade , Política Nutricional/economia , Estudos Prospectivos , População Rural , Classe Social , População Urbana , Verduras
5.
Inj Prev ; 22(2): 92-8, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26512093

RESUMO

OBJECTIVES: To assess risk factors associated with non-fatal injuries (NFIs) from road traffic accidents (RTAs) or falls. METHODS: Our study included 151 609 participants from the Prospective Urban Rural Epidemiological study. Participants reported whether they experienced injuries within the past 12 months that limited normal activities. Additional questions elicited data on risk factors. We employed multivariable logistic regression to analyse data. RESULTS: Overall, 5979 participants (3.9% of 151 609) reported at least one NFI. Total number of NFIs was 6300: 1428 were caused by RTAs (22.7%), 1948 by falls (30.9%) and 2924 by other causes (46.4%). Married/common law status was associated with fewer falls, but not with RTA. Age 65-70 years was associated with fewer RTAs, but more falls; age 55-64 years was associated with more falls. Male versus female was associated with more RTAs and fewer falls. In lower-middle-income countries, rural residence was associated with more RTAs and falls; in low-income countries, rural residence was associated with fewer RTAs. Previous alcohol use was associated with more RTAs and falls; current alcohol use was associated with more falls. Education was not associated with either NFI type. CONCLUSIONS: This study of persons aged 35-70 years found that some risk factors for NFI differ according to whether the injury is related to RTA or falls. Policymakers may use these differences to guide the design of prevention policies for RTA-related or fall-related NFI.


Assuntos
Acidentes por Quedas/estatística & dados numéricos , Acidentes de Trânsito/estatística & dados numéricos , Consumo de Bebidas Alcoólicas/epidemiologia , Prevenção Primária , Saúde Pública , População Rural/estatística & dados numéricos , População Urbana/estatística & dados numéricos , Acidentes por Quedas/prevenção & controle , Acidentes de Trânsito/prevenção & controle , Adulto , Distribuição por Idade , Idoso , Consumo de Bebidas Alcoólicas/efeitos adversos , Sistema de Vigilância de Fator de Risco Comportamental , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Formulação de Políticas , Prevenção Primária/organização & administração , Estudos Prospectivos , Fatores de Risco , Distribuição por Sexo
6.
Lancet ; 387(10013): 61-9, 2016 Jan 02.
Artigo em Inglês | MEDLINE | ID: mdl-26498706

RESUMO

BACKGROUND: WHO has targeted that medicines to prevent recurrent cardiovascular disease be available in 80% of communities and used by 50% of eligible individuals by 2025. We have previously reported that use of these medicines is very low, but now aim to assess how such low use relates to their lack of availability or poor affordability. METHODS: We analysed information about availability and costs of cardiovascular disease medicines (aspirin, ß blockers, angiotensin-converting enzyme inhibitors, and statins) in pharmacies gathered from 596 communities in 18 countries participating in the Prospective Urban Rural Epidemiology (PURE) study. Medicines were considered available if present at the pharmacy when surveyed, and affordable if their combined cost was less than 20% of household capacity-to-pay. We compared results from high-income, upper middle-income, lower middle-income, and low-income countries. Data from India were presented separately given its large, generic pharmaceutical industry. FINDINGS: Communities were recruited between Jan 1, 2003, and Dec 31, 2013. All four cardiovascular disease medicines were available in 61 (95%) of 64 urban and 27 (90%) of 30 rural communities in high-income countries, 53 (80%) of 66 urban and 43 (73%) of 59 rural communities in upper middle-income countries, 69 (62%) of 111 urban and 42 (37%) of 114 rural communities in lower middle-income countries, eight (25%) of 32 urban and one (3%) of 30 rural communities in low-income countries (excluding India), and 34 (89%) of 38 urban and 42 (81%) of 52 rural communities in India. The four cardiovascular disease medicines were potentially unaffordable for 0·14% of households in high-income countries (14 of 9934 households), 25% of upper middle-income countries (6299 of 24,776), 33% of lower middle-income countries (13,253 of 40,023), 60% of low-income countries (excluding India; 1976 of 3312), and 59% households in India (9939 of 16,874). In low-income and middle-income countries, patients with previous cardiovascular disease were less likely to use all four medicines if fewer than four were available (odds ratio [OR] 0·16, 95% CI 0·04-0·57). In communities in which all four medicines were available, patients were less likely to use medicines if the household potentially could not afford them (0·16, 0·04-0·55). INTERPRETATION: Secondary prevention medicines are unavailable and unaffordable for a large proportion of communities and households in upper middle-income, lower middle-income, and low-income countries, which have very low use of these medicines. Improvements to the availability and affordability of key medicines is likely to enhance their use and help towards achieving WHO's targets of 50% use of key medicines by 2025. FUNDING: Population Health Research Institute, the Canadian Institutes of Health Research, Heart and Stroke Foundation of Ontario, AstraZeneca (Canada), Sanofi-Aventis (France and Canada), Boehringer Ingelheim (Germany and Canada), Servier, GlaxoSmithKline, Novartis, King Pharma, and national or local organisations in participating countries.


Assuntos
Fármacos Cardiovasculares/provisão & distribuição , Doenças Cardiovasculares/tratamento farmacológico , Países Desenvolvidos , Países em Desenvolvimento , Custos de Medicamentos , Renda , Farmácias , Antagonistas Adrenérgicos beta/economia , Antagonistas Adrenérgicos beta/provisão & distribuição , Antagonistas Adrenérgicos beta/uso terapêutico , Inibidores da Enzima Conversora de Angiotensina/economia , Inibidores da Enzima Conversora de Angiotensina/provisão & distribuição , Inibidores da Enzima Conversora de Angiotensina/uso terapêutico , Argentina , Aspirina/economia , Aspirina/provisão & distribuição , Aspirina/uso terapêutico , Bangladesh , Brasil , Canadá , Fármacos Cardiovasculares/economia , Fármacos Cardiovasculares/uso terapêutico , Chile , China , Colômbia , Características da Família , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/economia , Inibidores de Hidroximetilglutaril-CoA Redutases/provisão & distribuição , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Índia , Irã (Geográfico) , Malásia , Paquistão , Inibidores da Agregação Plaquetária/economia , Inibidores da Agregação Plaquetária/provisão & distribuição , Inibidores da Agregação Plaquetária/uso terapêutico , Polônia , População Rural , Prevenção Secundária , África do Sul , Suécia , Turquia , Emirados Árabes Unidos , População Urbana , Zimbábue
7.
Bull World Health Organ ; 93(12): 851-61G, 2015 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-26668437

RESUMO

OBJECTIVE: To examine and compare tobacco marketing in 16 countries while the Framework Convention on Tobacco Control requires parties to implement a comprehensive ban on such marketing. METHODS: Between 2009 and 2012, a kilometre-long walk was completed by trained investigators in 462 communities across 16 countries to collect data on tobacco marketing. We interviewed community members about their exposure to traditional and non-traditional marketing in the previous six months. To examine differences in marketing between urban and rural communities and between high-, middle- and low-income countries, we used multilevel regression models controlling for potential confounders. FINDINGS: Compared with high-income countries, the number of tobacco advertisements observed was 81 times higher in low-income countries (incidence rate ratio, IRR: 80.98; 95% confidence interval, CI: 4.15-1578.42) and the number of tobacco outlets was 2.5 times higher in both low- and lower-middle-income countries (IRR: 2.58; 95% CI: 1.17-5.67 and IRR: 2.52; CI: 1.23-5.17, respectively). Of the 11,842 interviewees, 1184 (10%) reported seeing at least five types of tobacco marketing. Self-reported exposure to at least one type of traditional marketing was 10 times higher in low-income countries than in high-income countries (odds ratio, OR: 9.77; 95% CI: 1.24-76.77). For almost all measures, marketing exposure was significantly lower in the rural communities than in the urban communities. CONCLUSION: Despite global legislation to limit tobacco marketing, it appears ubiquitous. The frequency and type of tobacco marketing varies on the national level by income group and by community type, appearing to be greatest in low-income countries and urban communities.


Assuntos
Publicidade/estatística & dados numéricos , População Rural/estatística & dados numéricos , Indústria do Tabaco , População Urbana/estatística & dados numéricos , Publicidade/métodos , Ásia Ocidental , Canadá , Estudos Transversais , Humanos , Entrevistas como Assunto , Modelos Logísticos , Marketing , Características de Residência , Meio Social , Fatores Socioeconômicos , América do Sul , Suécia , Nicotiana , Emirados Árabes Unidos
8.
Public Health Nutr ; 18(10): 1890-7, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25287557

RESUMO

OBJECTIVE: Malnutrition in Africa has not improved compared with other regions in the world. Investment in the build-up of a strong African research workforce is essential to provide contextual solutions to the nutritional problems of Africa. To orientate this process, we reviewed nutrition research carried out in Africa and published during the last decade. DESIGN: We assessed nutrition research from Africa published between 2000 and 2010 from MEDLINE and EMBASE and analysed the study design and type of intervention for studies indexed with major MeSH terms for vitamin A deficiency, protein-energy malnutrition, obesity, breast-feeding, nutritional status and food security. Affiliations of first authors were visualised as a network and power of affiliations was assessed using centrality metrics. SETTING: Africa. SUBJECTS: Africans, all age groups. RESULTS: Most research on the topics was conducted in Southern (36%) and Western Africa (34%). The intervention studies (9%; n 95) mainly tested technological and curative approaches to the nutritional problems. Only for papers on protein-energy malnutrition and obesity did lead authorship from Africa exceed that from non-African affiliations. The 10% most powerfully connected affiliations were situated mainly outside Africa for publications on vitamin A deficiency, breast-feeding, nutritional status and food security. CONCLUSIONS: The development of the evidence base for nutrition research in Africa is focused on treatment and the potential for cross-African networks to publish nutrition research from Africa remains grossly underutilised. Efforts to build capacity for effective nutrition action in Africa will require forging a true academic partnership between African and non-African research institutions.


Assuntos
Academias e Institutos , Pesquisa Biomédica , Fortalecimento Institucional , Comportamento Cooperativo , Desnutrição , Ciências da Nutrição , África , Humanos , Cooperação Internacional , Desnutrição/prevenção & controle , Desnutrição/terapia , Recursos Humanos
9.
BMC Med ; 11: 170, 2013 Jul 24.
Artigo em Inglês | MEDLINE | ID: mdl-23880010

RESUMO

BACKGROUND: All rigorous primary cardiovascular disease (CVD) prevention guidelines recommend absolute CVD risk scores to identify high- and low-risk patients, but laboratory testing can be impractical in low- and middle-income countries. The purpose of this study was to compare the ranking performance of a simple, non-laboratory-based risk score to laboratory-based scores in various South African populations. METHODS: We calculated and compared 10-year CVD (or coronary heart disease (CHD)) risk for 14,772 adults from thirteen cross-sectional South African populations (data collected from 1987 to 2009). Risk characterization performance for the non-laboratory-based score was assessed by comparing rankings of risk with six laboratory-based scores (three versions of Framingham risk, SCORE for high- and low-risk countries, and CUORE) using Spearman rank correlation and percent of population equivalently characterized as 'high' or 'low' risk. Total 10-year non-laboratory-based risk of CVD death was also calculated for a representative cross-section from the 1998 South African Demographic Health Survey (DHS, n = 9,379) to estimate the national burden of CVD mortality risk. RESULTS: Spearman correlation coefficients for the non-laboratory-based score with the laboratory-based scores ranged from 0.88 to 0.986. Using conventional thresholds for CVD risk (10% to 20% 10-year CVD risk), 90% to 92% of men and 94% to 97% of women were equivalently characterized as 'high' or 'low' risk using the non-laboratory-based and Framingham (2008) CVD risk score. These results were robust across the six risk scores evaluated and the thirteen cross-sectional datasets, with few exceptions (lower agreement between the non-laboratory-based and Framingham (1991) CHD risk scores). Approximately 18% of adults in the DHS population were characterized as 'high CVD risk' (10-year CVD death risk >20%) using the non-laboratory-based score. CONCLUSIONS: We found a high level of correlation between a simple, non-laboratory-based CVD risk score and commonly-used laboratory-based risk scores. The burden of CVD mortality risk was high for men and women in South Africa. The policy and clinical implications are that fast, low-cost screening tools can lead to similar risk assessment results compared to time- and resource-intensive approaches. Until setting-specific cohort studies can derive and validate country-specific risk scores, non-laboratory-based CVD risk assessment could be an effective and efficient primary CVD screening approach in South Africa.


Assuntos
Doenças Cardiovasculares/diagnóstico , Doenças Cardiovasculares/etnologia , Vigilância da População/métodos , Adulto , Idoso , Doenças Cardiovasculares/terapia , Estudos de Coortes , Estudos Transversais , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Medição de Risco , África do Sul/etnologia
10.
Int J Equity Health ; 11: 31, 2012 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-22691443

RESUMO

OBJECTIVE: The aim of this study was to explore possible differences in health care seeking behaviour among a rural and urban African population. DESIGN: A cross sectional design was followed using the infrastructure of the PURE-SA study. Four rural and urban Setswana communities which represented different strata of urbanisation in the North West Province, South Africa, were selected. Structured interviews were held with 206 participants. Data on general demographic and socio-economic characteristics, health status, beliefs about health and (access to) health care was collected. RESULTS: The results clearly illustrated differences in socio-economic characteristics, health status, beliefs about health, and health care utilisation. In general, inhabitants of urban communities rated their health significantly better than rural participants. Although most urban and rural participants consider their access to health care as sufficient, they still experienced difficulties in receiving the requested care. The difference in employment rate between urban and rural communities in this study indicated that participants of urban communities were more likely to be employed. Consequently, participants from rural communities had a significantly lower available weekly budget, not only for health care itself, but also for transport to the health care facility. Urban participants were more than 5 times more likely to prefer a medical doctor in private practice (OR:5.29, 95% CI 2.83-988). CONCLUSION: Recommendations are formulated for infrastructure investments in rural communities, quality of health care and its perception, improvement of household socio-economical status and further research on the consequences of delay in health care seeking behaviour.


Assuntos
Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , População Rural/estatística & dados numéricos , População Urbana/estatística & dados numéricos , Adulto , Fatores Etários , Idoso , Atitude Frente a Saúde , Estudos Transversais , Atenção à Saúde/estatística & dados numéricos , Feminino , Acessibilidade aos Serviços de Saúde/estatística & dados numéricos , Nível de Saúde , Disparidades nos Níveis de Saúde , Disparidades em Assistência à Saúde/estatística & dados numéricos , Humanos , Entrevistas como Assunto , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Fatores Socioeconômicos , África do Sul/epidemiologia , Inquéritos e Questionários
11.
J Health Popul Nutr ; 30(1): 56-65, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22524120

RESUMO

To better understand the sex differences in body mass index (BMI) observed in black South African adults in the Transition and Health during Urbanization of South Africans Study, the present study investigated whether these differences can be explained by the psycho-sociodemographic factors and/or health-related behaviours. A cross-sectional survey was undertaken among 1,842 black South African individuals from 37 study sites that represented five levels of urbanization. The behavioural factors that possibly could have an influence on the outcome of body-weight and that were explored included: diet, smoking, level of education, HIV infection, employment status, level of urbanization, intake of alcohol, physical activity, and neuroticism. The biological factors explored were age and sex. The prevalence of underweight, normal weight, and overweight among men and women was separately determined. The means of the variables were compared by performing Student's t-test for normally-distributed variables and Mann-Whitney U-test for non-normally-distributed variables. The means for the underweight and overweight groups were tested for significant differences upon comparison with normal-weight individuals stratified separately for sex. The differences in prevalence were tested using chi-square tests (p<0.05). All the variables with a large number of missing values were tested for potential bias. The association between sex and underweight or overweight was tested using the Mantel-Haenszel method of odds ratio (OR) and calculation of 95% confidence interval (CI), with statistical significance set at p<0.05 level. Logistic regression was used for controlling for confounders and for testing for effect modification. Females were more likely to be overweight/obese (crude OR=5.1; CI 3.8-6.8). The association was attenuated but remained strong and significant even after controlling for the psycho-sociodemographic confounders. In this survey, the risk for overweight/obesity was strongly related to sex and not to the psycho-sociodemographic external factors investigated. It is, thus, important to understand the molecular roots of sex- and gender-specific variability in distribution of BMI as this is central to the future development of treatment and prevention programmes against overweight/obesity.


Assuntos
População Negra/estatística & dados numéricos , Sobrepeso/epidemiologia , Magreza/epidemiologia , Adolescente , Adulto , Idoso , População Negra/psicologia , Índice de Massa Corporal , Peso Corporal , Estudos Transversais , Feminino , Comportamentos Relacionados com a Saúde , Indicadores Básicos de Saúde , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Distribuição por Sexo , Fatores Socioeconômicos , África do Sul/epidemiologia , Adulto Jovem
12.
Lancet ; 378(9798): 1231-43, 2011 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-21872920

RESUMO

BACKGROUND: Although most cardiovascular disease occurs in low-income and middle-income countries, little is known about the use of effective secondary prevention medications in these communities. We aimed to assess use of proven effective secondary preventive drugs (antiplatelet drugs, ß blockers, angiotensin-converting-enzyme [ACE] inhibitors or angiotensin-receptor blockers [ARBs], and statins) in individuals with a history of coronary heart disease or stroke. METHODS: In the Prospective Urban Rural Epidemiological (PURE) study, we recruited individuals aged 35-70 years from rural and urban communities in countries at various stages of economic development. We assessed rates of previous cardiovascular disease (coronary heart disease or stroke) and use of proven effective secondary preventive drugs and blood-pressure-lowering drugs with standardised questionnaires, which were completed by telephone interviews, household visits, or on patient's presentation to clinics. We report estimates of drug use at national, community, and individual levels. FINDINGS: We enrolled 153,996 adults from 628 urban and rural communities in countries with incomes classified as high (three countries), upper-middle (seven), lower-middle (three), or low (four) between January, 2003, and December, 2009. 5650 participants had a self-reported coronary heart disease event (median 5·0 years previously [IQR 2·0-10·0]) and 2292 had stroke (4·0 years previously [2·0-8·0]). Overall, few individuals with cardiovascular disease took antiplatelet drugs (25·3%), ß blockers (17·4%), ACE inhibitors or ARBs (19·5%), or statins (14·6%). Use was highest in high-income countries (antiplatelet drugs 62·0%, ß blockers 40·0%, ACE inhibitors or ARBs 49·8%, and statins 66·5%), lowest in low-income countries (8·8%, 9·7%, 5·2%, and 3·3%, respectively), and decreased in line with reduction of country economic status (p(trend)<0·0001 for every drug type). Fewest patients received no drugs in high-income countries (11·2%), compared with 45·1% in upper middle-income countries, 69·3% in lower middle-income countries, and 80·2% in low-income countries. Drug use was higher in urban than rural areas (antiplatelet drugs 28·7% urban vs 21·3% rural, ß blockers 23·5%vs 15·6%, ACE inhibitors or ARBs 22·8%vs 15·5%, and statins 19·9%vs 11·6%; all p<0·0001), with greatest variation in poorest countries (p(interaction)<0·0001 for urban vs rural differences by country economic status). Country-level factors (eg, economic status) affected rates of drug use more than did individual-level factors (eg, age, sex, education, smoking status, body-mass index, and hypertension and diabetes statuses). INTERPRETATION: Because use of secondary prevention medications is low worldwide-especially in low-income countries and rural areas-systematic approaches are needed to improve the long-term use of basic, inexpensive, and effective drugs. FUNDING: Full funding sources listed at end of paper (see Acknowledgments).


Assuntos
Anti-Hipertensivos/uso terapêutico , Fármacos Cardiovasculares/uso terapêutico , Doença das Coronárias/tratamento farmacológico , Países Desenvolvidos , Países em Desenvolvimento , Prevenção Secundária , Acidente Vascular Cerebral/tratamento farmacológico , Antagonistas Adrenérgicos beta/uso terapêutico , Adulto , Idoso , Inibidores da Enzima Conversora de Angiotensina/uso terapêutico , Doenças Cardiovasculares/prevenção & controle , Coleta de Dados , Uso de Medicamentos , Feminino , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Masculino , Pessoa de Meia-Idade , Inibidores da Agregação Plaquetária/uso terapêutico , População Rural , População Urbana
13.
Nutrients ; 3(4): 429-41, 2011 04.
Artigo em Inglês | MEDLINE | ID: mdl-22254104

RESUMO

The objective of this narrative review is to examine the nutrition transition and its consequences when populations in Africa modernize as a result of socio-economic development, urbanization, and acculturation. The focus is on the changes in dietary patterns and nutrient intakes during the nutrition transition, the determinants and consequences of these changes as well as possible new approaches in public health nutrition policies, interventions and research needed to steer the nutrition transition into a more positive direction in Africa. The review indicates that non-communicable, nutrition-related diseases have emerged in sub-Saharan Africa at a faster rate and at a lower economic level than in industrialized countries, before the battle against under-nutrition has been won. There is a putative epigenetic link between under- and over-nutrition, explaining the double burden of nutrition-related diseases in Africa. It is concluded that it is possible to steer the nutrition transition into a more positive direction, provided that some basic principles in planning public health promotion strategies, policies and interventions are followed. It is suggested that sub-Saharan African countries join forces to study the nutrition transition and implemented interventions on epidemiological, clinical and molecular (genetic) level for better prevention of both under- and over-nutrition.


Assuntos
Dieta , Distúrbios Nutricionais/epidemiologia , Fenômenos Fisiológicos da Nutrição , África/epidemiologia , Países em Desenvolvimento , Feminino , Nível de Saúde , Humanos , Desnutrição/epidemiologia , Política Nutricional , Hipernutrição/epidemiologia , Mudança Social , Urbanização
14.
Clin Psychol Psychother ; 15(3): 181-92, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-19115439

RESUMO

A continuous assessment and a categorical diagnosis of the presence of mental health, described as flourishing, and the absence of mental health, characterized as languishing, is applied to a random sample of 1050 Setswana-speaking adults in the Northwest province of South Africa. Factor analysis revealed that the mental health continuum-short form (MHC-SF) replicated the three-factor structure of emotional, psychological and social well-being found in US samples. The internal reliability of the overall MHC-SF Scale was 0.74. The total score on the MHC-SF correlated 0.52 with a measure of positive affect, between 0.35 and 0.40 with measures of generalized self-efficacy and satisfaction with life, and between 0.30 and 0.35 with measures of coping strategies, sense of coherence, and community collective self-efficacy. The total score on the MHC-SF correlated -0.22 with the total score on the General Health Questionnaire. Criteria for the categorical diagnosis were applied, and findings revealed that 20% were flourishing, 67.8% were moderately mentally healthy, and 12.2% were languishing. Confirmatory factor analysis supported the hypothesized two-continua model of mental health and mental illness found in the USA.


Assuntos
Comparação Transcultural , Indicadores Básicos de Saúde , Idioma , Saúde Mental/estatística & dados numéricos , Qualidade de Vida/psicologia , Inquéritos e Questionários , Adaptação Psicológica , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Inquéritos Epidemiológicos , Humanos , Controle Interno-Externo , Masculino , Transtornos Mentais/epidemiologia , Transtornos Mentais/etnologia , Transtornos Mentais/psicologia , Pessoa de Meia-Idade , Psicometria/estatística & dados numéricos , Reprodutibilidade dos Testes , População Rural/estatística & dados numéricos , Autoeficácia , África do Sul , Tradução , População Urbana/estatística & dados numéricos
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