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1.
BMJ Open ; 14(5): e080166, 2024 May 13.
Artigo em Inglês | MEDLINE | ID: mdl-38740501

RESUMO

INTRODUCTION: As nearly two-thirds of women presenting at their first antenatal visit are either overweight or obese in urban South Africa, the preconception period is an opportunity to optimise health and offset transgenerational risk of both obesity and non-communicable diseases. This protocol describes the planned economic evaluation of an individually randomised controlled trial of a complex continuum of care intervention targeting women and children in Soweto, South Africa (Bukhali trial). METHODS AND ANALYSIS: The economic evaluation of the Bukhali trial will be conducted as a within-trial analysis from both provider and societal perspectives. Incremental costs and health outcomes of the continuum of care intervention will be compared with standard care. The economic impact on implementing agencies (programme costs), healthcare providers, participants and their households will be estimated. Incremental cost-effectiveness ratios (ICERs) will be calculated in terms of cost per case of child adiposity at age years averted. Additionally, ICERs will also be reported in terms of cost per quality-adjusted life year gained. If Bukhali demonstrates effectiveness, we will employ a decision analytical model to examine the cost-effectiveness of the intervention over a child's lifetime. A Markov model will be used to estimate long-term health benefits, healthcare costs and cost-effectiveness. Probabilistic sensitivity analyses will be conducted to explore uncertainty and ensure robust results. An analysis will be conducted to assess the equity impact of the intervention, by comparing intervention impact within quintiles of socioeconomic status. ETHICS AND DISSEMINATION: The Bukhali trial economic evaluation has ethical approval from the Human Ethics Research Committee of the University of the Witwatersrand, Johannesburg, South Africa (M240162). The results of the economic evaluation will be disseminated in a peer-reviewed journal and presented at a relevant international conference. TRIAL REGISTRATION NUMBER: Pan African Clinical Trials Registry (PACTR201903750173871; https://pactr.samrc.ac.za).


Assuntos
Continuidade da Assistência ao Paciente , Análise Custo-Benefício , Anos de Vida Ajustados por Qualidade de Vida , Adulto , Criança , Feminino , Humanos , Gravidez , Continuidade da Assistência ao Paciente/economia , Obesidade/terapia , Obesidade/economia , Obesidade Infantil/terapia , Obesidade Infantil/economia , Cuidado Pré-Natal/economia , Ensaios Clínicos Controlados Aleatórios como Assunto , África do Sul
2.
Afr J Prim Health Care Fam Med ; 16(1): e1-e11, 2024 Apr 29.
Artigo em Inglês | MEDLINE | ID: mdl-38708725

RESUMO

BACKGROUND: Although studies from high-income countries have examined social support during pregnancy, it remains unclear what type of support is received by expectant mothers from low- and middle-income country settings. AIM: To explore young women's social support networks during pregnancy in Soweto, South Africa. SETTING: This study was undertaken in an academic hospital based in the Southwestern Townships (Soweto), Johannesburg, in Gauteng province, South Africa. METHODS: An exploratory descriptive qualitative approach was employed. Eighteen (18) young pregnant women were recruited using a purposive sampling approach. In-depth interviews were conducted, and data were analysed using inductive thematic analysis. RESULTS: Analysis of the data resulted in the development of two superordinate themes namely; (1) relationships during pregnancy and (2) network involvement. Involvement of the various social networks contributed greatly to the young women having a greater sense of potential parental efficacy and increased acceptance of their pregnancies. Pregnant women who receive sufficient social support from immediate networks have increased potential to embrace and give attention to pregnancy-related changes. CONCLUSION: Focusing on less-examined characteristics that could enhance pregnant women's health could help in the reduction of deaths that arise because of pregnancy complications and contribute in globally accelerating increased accessibility to adequate reproductive health.Contribution: This study's findings emphasise the necessity for policymakers and healthcare providers to educate the broader community about the importance of partner, family and peer support to minimise risks that may affect pregnancy care and wellbeing of mothers.


Assuntos
Pesquisa Qualitativa , Apoio Social , Humanos , Feminino , África do Sul , Gravidez , Adulto Jovem , Adulto , Gestantes/psicologia , Adolescente , Entrevistas como Assunto
3.
Public Health Nutr ; 27(1): e116, 2024 Apr 05.
Artigo em Inglês | MEDLINE | ID: mdl-38576137

RESUMO

OBJECTIVE: To investigate food insecurity and related coping strategies, and their associations with the risk of anxiety and depression, among South African households with children. DESIGN: Nationally representative cross-sectional study. Tools for assessing food insecurity, coping strategies, risk of anxiety and depression were assessed from the Community Childhood Hunger Identification Project, Coping Strategies Index, Generalised Anxiety Disorder-7 and Patient Health Questionnaire-9, respectively. We used ordered logistic regression to test associations of food insecurity and coping strategies with the risk of anxiety and depression. Moderating effects of each coping strategy were tested in the associations of food insecurity with anxiety and depression. SETTING: South Africa, post COVID-19 restrictions, May-June 2022. PARTICIPANTS: 1,774 adults, weighted to 20,955,234 households. RESULTS: Food insecurity prevalence was 23·7 % among households with children. All coping strategies were used to some extent, but relying on less preferred and less expensive foods was the most used strategy (85·5 % of food-insecure households). Moving to a higher level of food insecurity was associated with >1·6 greater odds of being in a higher risk of anxiety and depression. Sending a household member to beg for food was the strongest associated factor (OR = 1·7, P < 0·001). All coping strategies partly moderated (lessened) the associations of food insecurity with a higher risk of anxiety and depression. CONCLUSIONS: Food insecurity among households with children was high following the COVID-19 pandemic. Collaborative efforts between government, private sector and civil society to eradicate food insecurity should prioritise poorer households with children, as these populations are the most vulnerable.


Assuntos
COVID-19 , Capacidades de Enfrentamento , Adulto , Criança , Humanos , África do Sul/epidemiologia , Estudos Transversais , Depressão/epidemiologia , Pandemias , Abastecimento de Alimentos , Insegurança Alimentar , Ansiedade/epidemiologia , Transtornos de Ansiedade , COVID-19/epidemiologia
4.
JMIR Form Res ; 8: e48144, 2024 Apr 08.
Artigo em Inglês | MEDLINE | ID: mdl-38588527

RESUMO

BACKGROUND: The use of mobile technologies in fostering health promotion and healthy behaviors is becoming an increasingly common phenomenon in global health programs. Although mobile technologies have been effective in health promotion initiatives and follow-up research in higher-income countries and concerns have been raised within clinical practice and research in low- and middle-income settings, there is a lack of literature that has qualitatively explored the challenges that participants experience in terms of being contactable through mobile technologies. OBJECTIVE: This study aims to explore the challenges that participants experience in terms of being contactable through mobile technologies in a trial conducted in Soweto, South Africa. METHODS: A convergent parallel mixed methods research design was used. In the quantitative phase, 363 young women in the age cohorts 18 to 28 years were contacted telephonically between August 2019 and January 2022 to have a session delivered to them or to be booked for a session. Call attempts initiated by the study team were restricted to only 1 call attempt, and participants who were reached at the first call attempt were classified as contactable (189/363, 52.1%), whereas those whom the study team failed to contact were classified as hard to reach (174/363, 47.9%). Two outcomes of interest in the quantitative phase were "contactability of the participants" and "participants' mobile number changes," and these outcomes were analyzed at a univariate and bivariate level using descriptive statistics and a 2-way contingency table. In the qualitative phase, a subsample of young women (20 who were part of the trial for ≥12 months) participated in in-depth interviews and were recruited using a convenience sampling method. A reflexive thematic analysis approach was used to analyze the data using MAXQDA software (version 20; VERBI GmbH). RESULTS: Of the 363 trial participants, 174 (47.9%) were hard to reach telephonically, whereas approximately 189 (52.1%) were easy to reach telephonically. Most participants (133/243, 54.7%) who were contactable did not change their mobile number. The highest percentage of mobile number changes was observed among participants who were hard to reach, with three-quarters of the participants (12/16, 75%) being reported to have changed their mobile number ≥2 times. Eight themes were generated following the analysis of the transcripts, which provided an in-depth account of the reasons why some participants were hard to reach. These included mobile technical issues, coverage issues, lack of ownership of personal cell phones, and unregistered number. CONCLUSIONS: Remote data collection remains an important tool in public health research. It could, thus, serve as a hugely beneficial mechanism in connecting with participants while actively leveraging the established relationships with participants or community-based organizations to deliver health promotion and practice.

5.
BMC Womens Health ; 24(1): 161, 2024 Mar 05.
Artigo em Inglês | MEDLINE | ID: mdl-38443924

RESUMO

BACKGROUND: A patient-centered, human-rights based approach to maternal care moves past merely reducing maternal mortality and morbidity, towards achieving a positive pregnancy experience. When evaluating an intervention, particularly in the context of the complex challenges facing maternal care in South Africa, it is therefore important to understand how intervention components are experienced by women. We aimed to qualitatively explore (i) factors influencing the pregnancy and postpartum experience amongst young women in Soweto, South Africa, and (ii) the influence of Bukhali, a preconception, pregnancy, and early childhood intervention delivered by community health workers (CHWs), on these experiences. METHODS: Semi-structured, in-depth interviews were conducted with 15 purposively sampled participants. Participants were 18-28-year-old women who (i) were enrolled in the intervention arm of the Bukhali randomized controlled trial; (ii) were pregnant and delivered a child while being enrolled in the trial; and (iii) had at least one previous pregnancy prior to participation in the trial. Thematic analysis, informed by the positive pregnancy experiences framework and drawing on a codebook analysis approach, was used. RESULTS: The themes influencing participants' pregnancy experiences (aim 1) were participants' feelings about being pregnant, the responsibilities of motherhood, physical and mental health challenges, unstable social support and traumatic experiences, and the pressures of socioeconomic circumstances. In terms of how support, information, and care practices influenced these factors (aim 2), four themes were generated: acceptance and mother/child bonding, growing and adapting in their role as mothers, receiving tools for their health, and having ways to cope in difficult circumstances. These processes were found to be complementary and closely linked to participant context and needs. CONCLUSION: Our findings suggest that, among women aged 18-28, a CHW-delivered intervention combining support, information, and care practices has the potential to positively influence women's pregnancy experience in South Africa. In particular, emotional support and relevant information were key to better meeting participant needs. These findings can help define critical elements of CHW roles in maternal care and highlight the importance of patient-centred solutions to challenges within antenatal care. TRIAL REGISTRATION: Pan African Clinical Trials Registry PACTR201903750173871, 27/03/2019.


Assuntos
População Negra , Agentes Comunitários de Saúde , Adolescente , Adulto , Criança , Pré-Escolar , Feminino , Humanos , Gravidez , Adulto Jovem , Emoções , Número de Gestações , África do Sul
6.
PLOS Glob Public Health ; 4(3): e0002578, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38483881

RESUMO

Community health workers (CHWs) play an important role in health systems in low- and middle-income countries, including South Africa. Bukhali is a CHW-delivered intervention as part of a randomised controlled trial, to improve the health trajectories of young women in Soweto, South Africa. This study aimed to qualitatively explore factors influencing implementation of the preconception and pregnancy phases of Bukhali, from the perspective of the CHWs (Health Helpers, HHs) delivering the intervention. As part of the Bukhali trial process evaluation, three focus group discussions were conducted with the 13 HHs employed by the trial. A thematic approach was used to analyse the data, drawing on elements of a reflexive thematic and codebook approach. The following six themes were developed, representing factors impacting implementation of the HH roles: interaction with the existing public healthcare sector; participant perceptions of health; health literacy and language barriers; participants' socioeconomic constraints; family, partner, and community views of trial components; and the HH-participant relationship. HHs reported uses of several trial-based tools to overcome implementation challenges, increasing their ability to implement their roles as planned. The relationship of trust between the HH and participants seemed to function as one important mechanism for impact. The findings supported a number of adaptations to the implementation of Bukhali, such as intensified trial-based follow-up of referrals that do not receive management at clinics, continued HH training and community engagement parallel to trial implementation, with an increased emphasis on health-related stigma and education. HH perspectives on intervention implementation highlighted adaptations across three broad strategic areas: navigating and bridging healthcare systems, adaptability to individual participant needs, and navigating stigma around disease. These findings provide recommendations for the next phases of Bukhali, for other CHW-delivered preconception and pregnancy trials, and for the strengthening of CHW roles in clinical settings with similar implementation challenges. Trial registration: Pan African Clinical Trials Registry; PACTR201903750173871, Registered March 27, 2019.

7.
Eur J Clin Nutr ; 2024 Jan 03.
Artigo em Inglês | MEDLINE | ID: mdl-38172346

RESUMO

BACKGROUND: Given the importance of infancy for establishing growth trajectories, with later-life health consequences, we investigated longitudinal body composition among infants from six economically and ethnically diverse countries. METHODS: We recruited mother-infant dyads using the WHO Multicenter Growth Reference Study criteria. We measured fat-free mass (FFM) in 1393 (49% female) infants from birth to 6 months of age (Australia, India, and South Africa; n = 468), 3-24 months of age (Brazil, Pakistan, South Africa, and Sri Lanka; n = 925), and derived fat mass (FM), fat mass index (FMI), and fat-free mass index (FFMI). Height-for-age (HAZ), weight-for-age (WAZ), and weight-for-length (WHZ) Z-scores were computed. Sex differences were assessed using a t-test, and country differences using a one-way analysis of covariance. We further compared subsamples of children with average (-0.25 > HAZ < +0.25), below-average (≤-0.25) and above-average (≥+0.25) HAZ. RESULTS: HAZ performed well between 0 and 6 months, but less so between 3 and 24 months. The stunting prevalence peaked at 10.3% for boys and 7.8% for girls, at 24 months. By 24 months, girls had greater FMI (10%) than boys. There were significant differences in FFM (both sexes in all countries) and FM (Brazilian boys, Pakistani and South African girls) by 24 months of age between infants with average, above-average, and below-average HAZ. CONCLUSION: In a multi-country sample representing more ideal maternal conditions, body composition was heterogeneous even among infants who exhibited ideal length. Having a mean HAZ close to the median of the WHO standard for length reduced FFM between-country heterogeneity but not FM, suggesting that other factors may influence adiposity.

8.
BMJ Open ; 14(1): e073316, 2024 01 09.
Artigo em Inglês | MEDLINE | ID: mdl-38195169

RESUMO

INTRODUCTION: South Africa has a high prevalence of gestational diabetes mellitus (GDM; 15%) and many of these women (48%) progress to type 2 diabetes mellitus (T2DM) within 5 years post partum. A significant proportion (47%) of the women are not aware of their diabetes status after the index pregnancy, which may be in part to low postnatal diabetes screening rates. Therefore, we aim to evaluate a intervention that reduces the subsequent risk of developing T2DM among women with recent GDM. Our objectives are fourfold: (1) compare the completion of the nationally recommended 6-week postpartum oral glucose tolerance test (OGTT) between intervention and control groups; (2) compare the diabetes risk reduction between control and intervention groups at 12 months' post partum; (3) assess the process of implementation; and (4) assess the cost-effectiveness of the proposed intervention package. METHODS AND ANALYSES: Convergent parallel mixed-methods study with the main component being a pragmatic, 2-arm individually randomised controlled trial, which will be carried out at five major referral centres and up to 26 well-baby clinics in the Western Cape and Gauteng provinces of South Africa. Participants (n=370) with GDM (with no prior history of either type 1 or type 2 diabetes) will be recruited into the study at 24-36 weeks' gestational age, at which stage first data collection will take place. Subsequent data collection will take place at 6-8 weeks after delivery and again at 12 months. The primary outcome for the trial is twofold: first, the completion of the recommended 2-hour OGTT at the well-baby clinics 6-8 weeks post partum, and second, a composite diabetes risk reduction indicator at 12 months. Process evaluation will assess fidelity, acceptability, and dose of the intervention. ETHICS AND DISSEMINATION: Ethics approval has been granted from University of Cape Town (829/2016), University of the Witwatersrand, Johannesburg (M170228), University of Stellenbosch (N17/04/032) and the University of Montreal (2019-794). The results of the trial will be disseminated through publication in peer-reviewed journals and presentations to key South African Government stakeholders and health service providers. PROTOCOL VERSION: 1 December 2022 (version #2). Any protocol amendments will be communicated to investigators, Human Ethics Research Committees, trial participants, and trial registries. TRIAL REGISTRATION NUMBER: PAN African Clinical Trials Registry (https://pactr.samrc.ac.za) on 11 June 2018 (identifier PACTR201805003336174).


Assuntos
Prestação Integrada de Cuidados de Saúde , Diabetes Mellitus Tipo 2 , Diabetes Gestacional , Lactente , Gravidez , Feminino , Humanos , Diabetes Gestacional/epidemiologia , Diabetes Gestacional/prevenção & controle , África do Sul/epidemiologia , Diabetes Mellitus Tipo 2/epidemiologia , Diabetes Mellitus Tipo 2/prevenção & controle , Programas Governamentais , Ensaios Clínicos Controlados Aleatórios como Assunto
9.
Nutr Metab Cardiovasc Dis ; 34(4): 903-910, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38220506

RESUMO

BACKGROUND AND AIMS: Potassium-enriched low sodium salt substitutes (LSSS), which replace a proportion of sodium chloride (NaCl) with potassium chloride (KCl), have been shown to reduce blood pressure and offer a potential solution to address the high burden of hypertension in South Africa. However, it is unknown which proportions of KCl in LSSS are acceptable. We compared the taste and visual acceptability of various LSSS in South African adults. METHODS AND RESULTS: Fifty-six adults underwent double-blind taste and visual tests of four LSSS (35%KCl/65%NaCl; 50%KCl/50%NaCl; 66%KCl/34%NaCl; 100%KCl) in comparison to 100%NaCl (common salt). Participants scored each product by taste ranking, taste perception and likeliness to use. Participants then visually inspected the five products and attempted to identify which was which. Almost half (45 %) of participants ranked the taste of 50%KCl/50 %NaCl as fantastic or really good. Furthermore, 62 % of participants liked and would be happy to use the 50 %KCl/50 %NaCl or felt this tasted like common salt. Only 12 % rated the 100%KCl highly for taste, and over half reported being unlikely to use this. Most participants (57.3 % and 36.4 %) were able to visually identify 100%NaCl and 100%KCl, while identification of other blends was generally poor. Responses were similar for 35%KCl/65%NaCl and 66%KCl/34%NaCl throughout. CONCLUSION: Our findings suggest that the taste of the 50%KCl salt substitute would be well tolerated by South African adults, most of which could not visually differentiate between this salt substitute and common salt.


Assuntos
Cloreto de Sódio , Percepção Gustatória , Adulto , Humanos , Potássio , Cloreto de Potássio , Sódio , África do Sul , Paladar
10.
Nat Commun ; 14(1): 8376, 2023 Dec 16.
Artigo em Inglês | MEDLINE | ID: mdl-38104120

RESUMO

Most hypertension-related genome-wide association studies (GWASs) focus on non-African populations, despite hypertension (a major risk factor for cardiovascular disease) being highly prevalent in Africa. The AWI-Gen study GWAS meta-analysis for blood pressure (BP)-related traits (systolic and diastolic BP, pulse pressure, mean-arterial pressure and hypertension) from three sub-Saharan African geographic regions (N = 10,775), identifies two novel genome-wide significant signals (p < 5E-08): systolic BP near P2RY1 (rs77846204; intergenic variant, p = 4.95E-08) and pulse pressure near LINC01256 (rs80141533; intergenic variant, p = 1.76E-08). No genome-wide signals are detected for the AWI-Gen GWAS meta-analysis with previous African-ancestry GWASs (UK Biobank (African), Uganda Genome Resource). Suggestive signals (p < 5E-06) are observed for all traits, with 29 SNPs associating with more than one trait and several replicating known associations. Polygenic risk scores (PRSs) developed from studies on different ancestries have limited transferability, with multi-ancestry PRS providing better prediction. This study provides insights into the genetics of BP variation in African populations.


Assuntos
Estudo de Associação Genômica Ampla , Hipertensão , Humanos , Pressão Sanguínea/genética , Hipertensão/epidemiologia , Hipertensão/genética , População Negra/genética , Uganda , Polimorfismo de Nucleotídeo Único
11.
BMC Public Health ; 23(1): 2204, 2023 11 08.
Artigo em Inglês | MEDLINE | ID: mdl-37940937

RESUMO

BACKGROUND: South Africa has a complex range of historical, social, political, and economic factors that have shaped fatherhood. In the context of the Bukhali randomised controlled trial with young women in Soweto, South Africa, a qualitative study was conducted with the male partners of young women who had become pregnant during the trial. This exploratory study aimed to explore individual perceptions around relationship dynamics, their partner's pregnancy, and fatherhood of partners of young women in Soweto, South Africa. METHODS: Individual, in-depth interviews were conducted with male partners (fathers, n = 19, 25-46 years old) of Bukhali participants. A thematic approach was taken to the descriptive and exploratory process of analysis, and three final themes and subthemes were identified: (1) relationship dynamics (nature of relationship, relationship challenges); (2) pregnancy (feelings about the pregnancy, effect of the pregnancy on their relationship, providing support during pregnancy; and 3) fatherhood (view of fatherhood, roles of fathers, influences on views and motivation, challenges of fatherhood). RESULTS: While most male participants were in a committed ("serious") relationship with their female partner, less than half of them were cohabiting. Most reported that their partner's pregnancy was not planned, and shared mixed feelings about the pregnancy (e.g., happy, excited, shocked, nervous), although their views about fatherhood were overwhelmingly positive. Many were concerned about how they would economically provide for their child and partner, particularly those who were unemployed. Participants identified both general and specific ways in which they provided support for their partner, e.g., being present, co-attending antenatal check-ups, providing material resources. For many, the most challenging aspect of fatherhood was having to provide financially. They seemed to understand the level of responsibility expected of them as a father, and that their involvement and presence related to love for and connection with their child. Participants' responses indicated that there were some changes in the norms around fatherhood, suggesting that there is a possibility for a shift in the fatherhood narrative in their context. CONCLUSIONS: These findings suggest that the complex array of factors influencing fatherhood in South Africa continue to play out in this generation, although promising changes are evident.


Assuntos
Emoções , Pai , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Gravidez , Afeto , Ansiedade , África do Sul
13.
Glob Public Health ; 18(1): 2264968, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-37801722

RESUMO

COVID-19 prevention measures including lockdowns, school closures, and restricted movement disrupted young people's lives. This longitudinal qualitative study conducted in Soweto, South Africa aimed to explore young people's knowledge and perceptions of COVID-19, vaccination, and the impact of infections. A convenience sample of 30 young black people (n = 15 men; n = 15 women, aged 16-21 years) from Soweto participated in 24 focus group discussions (FGDs), conducted in six phases - each phase had four FGDs stratified by gender and age. Young people's understanding of COVID-19 deepened throughout the study, however, did not always translate into adherence (following the government's COVID-19 prevention measures). Although deemed inadequate, TV and radio were preferred over internet COVID-19 information. Parents, teachers, and schools were trusted sources of information. Vaccines and limited access to information attributed to low-risk perception, while new COVID-19 variants attributed to high-risk perception. A low-risk perception and conspiracy theories contributed to non-adherence (disregarding COVID-19 preventative measures provided by the government), particularly among young men. Accessing reliable information that considers young people's lives and their living context is important. Communities, scientists, and policymakers must learn from the COVID-19 experience and implement localised preventive strategies for education, awareness, and economic support in future emergencies.


Assuntos
COVID-19 , Masculino , Humanos , Feminino , Adolescente , COVID-19/epidemiologia , África do Sul/epidemiologia , SARS-CoV-2 , Controle de Doenças Transmissíveis
14.
Eur J Clin Nutr ; 2023 Aug 10.
Artigo em Inglês | MEDLINE | ID: mdl-37563231

RESUMO

Providing all infants with the best start to life is a universal but challenging goal for the global community. Historically, the size and shape of infants, quantified by anthropometry and commencing with birthweight, has been the common yardstick for physical growth and development. Anthropometry has long been considered a proxy for nutritional status during infancy when, under ideal circumstances, changes in size and shape are most rapid. Developed from data collected in the Multicentre Growth Reference Study (MGRS), WHO Child Growth Standards for healthy infants and children have been widely accepted and progressively adopted. In contrast, and somewhat surprisingly, much less is understood about the 'quality' of growth as reflected by body composition during infancy. Recent advances in body composition assessment, including the more widespread use of air displacement plethysmography (ADP) across the first months of life, have contributed to a progressive increase in our knowledge and understanding of growth and development. Along with stable isotope approaches, most commonly the deuterium dilution (DD) technique, the criterion measure of total body water (TBW), our ability to quantify lean and fat tissue using a two-compartment model, has been greatly enhanced. However, until now, global reference charts for the body composition of healthy infants have been lacking. This paper details some of the historical challenges associated with the assessment of body composition across the first two years of life, and references the logical next steps in growth assessments, including reference charts.

15.
BMC Public Health ; 23(1): 1360, 2023 07 15.
Artigo em Inglês | MEDLINE | ID: mdl-37454042

RESUMO

BACKGROUND: Multimorbidity-risk is established early in life, therefore reducing modifiable risk factors such as overweight or obesity may, in part, tackle the burden of multimorbidity in later life. METHODS: We made use of a cross-sectional online survey that included young adults (18-35yrs old) from three countries - Kenya, South Africa, and the United Kingdom (n = 3000). Information pertaining to socio-demographic, health, lifestyle, and perceived weight was collected. Additionally, the sum of affirmed morbidities was used to determine a morbidity score. Likewise, a lifestyle risk score was calculated based on information obtained from questions surrounding four unhealthy lifestyle behaviours, namely current smoking, alcohol consumption, physical inactivity, and overweight/obese weight status as a confirmed clinic condition. We further explored differences in socioeconomic position, and the prevalence of perceived weight, multimorbidity, and lifestyle risk factors between the three countries. We also determined the odds ratio of multimorbidity with perceived weight as a main predictor variable. We furthermore performed a generalised structural equation model to determine whether the association between socioeconomic position and multimorbidity was mediated via perceived weight and/or lifestyle risk. RESULTS: Socioeconomic position, weight perceptions, lifestyle risk, and multimorbidity varied significantly across the different economic countries. Higher morbidity (by > 11.9%) and lifestyle risk (by > 20.7%) scores were observed in those who reported an overweight weight perception when compared to those with an underweight or normal weight perception. In pooled analyses, the odds ratio in developing 2 or more morbidities increased multiple times in those who perceived themselves as overweight (all models: OR ≥ 2.241 [95% CI ≥ 1.693; ≥ 2.966] p < 0.001), showing a larger odds ratio with high significance in those who reported 3 or more morbidities (all models: OR ≥ 3.656 [95% CI ≥ 2.528; ≥ 5.286] p < 0.001). Furthermore, this study showed that an overweight weight perception partially mediated (p ≤ 0.001) the association between socioeconomic position and multimorbidity. CONCLUSIONS: This study confirmed poorer health outcomes in those who perceived themselves as overweight. The findings from this study further emphasise the importance of targeted intervention strategies directed at raising weight-related awareness and potentiating risk factors, specifically in those who reside in lower economic developed countries.


Assuntos
Multimorbidade , Sobrepeso , Humanos , Adulto Jovem , Estudos Transversais , Estilo de Vida , Obesidade/epidemiologia , Fatores Socioeconômicos , Prevalência
16.
BMC Pediatr ; 23(1): 342, 2023 07 06.
Artigo em Inglês | MEDLINE | ID: mdl-37415119

RESUMO

BACKGROUND: Growth patterns may be indicative of underlying changes in body composition. However, few studies have assessed the association of growth and body composition in poorly resourced regions experiencing the double-burden of malnutrition exists. Thus, the aims of this study were to investigate the association of intrauterine and postnatal growth patterns with infant body composition at 2 years in a middle-income country. METHODS: Participants were from the International Atomic Energy Agency Multicentre Body Composition Reference study. Fat mass (FM), fat free mass (FFM), Fat mass index (FMI), fat free mass index (FFMI), and percentage fat mass (%FM) were measured in 113 infants (56 boys and 57 girls), from Soweto, South Africa, using deuterium dilution from 3 to 24 months. Birthweight categories were classified using the INTERGROWTH-21 standards as small (SGA), appropriate (AGA), and large-for gestational age (LGA). Stunting (> -2 SDS) was defined using the WHO child growth standards. Birthweight z-score, conditional relative weight and conditional length at 12 and 24 mo were regressed on body composition at 24 mo. RESULTS: There were no sex differences in FM, FFM, FMI and FFMI between 3 and 24 mo. SGA and AGA both had significantly higher %FM than LGA at 12 mo. LGA had higher FM at 24 mo. Children with stunting had lower FM (Mean = 1.94, 95% CI; 1.63-2.31) and FFM (Mean = 5.91, 95% CI; 5.58-6.26) at 12 mo than non-stunting, while the reverse was true for FFMI (Mean = 13.3, 95% CI; 12.5-14.2) at 6 mo. Birthweight and conditionals explained over 70% of the variance in FM. CRW at both 12 and 24 mo was positively associated with FM and FMI. CRW at 12 mo was also positively associated with FMI, while CH at 24 mo was negatively associated with both FFMI and FMI in boys. CONCLUSION: Both LGA and SGA were associated with higher body fat suggesting that both are disadvantaged nutritional states, likely to increase the risk of obesity. Growth patterns through infancy and toddler period (1-2 years) are indicative of body fat, while growth patterns beyond infancy are less indicative of fat-free mass.


Assuntos
Composição Corporal , Estado Nutricional , Masculino , Lactente , Feminino , Humanos , Pré-Escolar , Peso ao Nascer , Índice de Massa Corporal , África do Sul , Tecido Adiposo , Aumento de Peso , Transtornos do Crescimento/etiologia
17.
BMJ Nutr Prev Health ; 6(1): 39-45, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37484540

RESUMO

Introduction: The first 1000 days of life are a critical period of growth and development that have lasting implications for health, cognitive, educational and economic outcomes. In sub-Saharan Africa, gender and social norms are such that many men have little engagement with maternal and child health and nutrition during pregnancy and early childhood. This study explores how men perceive their role in three sites in sub-Saharan Africa. Methods: Secondary qualitative analysis of 10 focus group discussions with 76 men in Burkina Faso, Ghana and South Africa. Data were thematically analysed to explore men's perceptions of maternal and child health and nutrition. Results: Men considered themselves 'providers' and 'advisors' within their families, particularly of finances, food and medicines. They also indicated that this advice was out of care and concern for their families' health. There were similarities in how the men perceive their role. Differences between men living in rural and urban settings included health priorities, the advice and the manner in which it was provided. Across all settings, men wanted to be more involved with maternal and child health and nutrition. Challenges to doing so included stigma and proscribed social gender roles. Conclusion: Men want a greater engagement in improving maternal and child health and nutrition but felt that their ability to do so was limited by culture-specified gender roles, which are more focused on providing for and advising their families. Involving both men and women in intervention development alongside policymakers, health professionals and researchers is needed to improve maternal and child health and nutrition.

18.
Glob Health Action ; 16(1): 2228567, 2023 12 31.
Artigo em Inglês | MEDLINE | ID: mdl-37431748

RESUMO

There is a rising noncommunicable disease (NCD) burden in low- and middle-income countries. Sub-Saharan Africa (SSA) bears a higher burden than the global average with South Africa (SA) enduring the highest regional burden. SA among other southern African countries also bears a high prevalence of HIV and other chronic communicable diseases. Having a perspective on common chronic diseases in the ever-increasing numbers of adult cancer patients in SA will inform our understanding of approaches to better manage them. This commentary reviews regional and national studies and data of low- and middle-income countries and particularly SA on the chronic infectious and NCD multimorbidity burden among adult cancer patients. It also reflects on the considerable health system challenges of managing discordant multimorbidity among adult cancer patients within the SA Public Health System. Despite the critical need to better manage the growing MM burden in general and particularly the high prevalence of discordant multimorbidity among cancer patients, there is a dearth of research into MM management generally and in LMICs particularly.


Assuntos
Neoplasias , Doenças não Transmissíveis , Humanos , Adulto , Doenças não Transmissíveis/epidemiologia , África do Sul/epidemiologia , Doença Crônica , Países em Desenvolvimento , Assistência Médica , Neoplasias/epidemiologia
19.
J Nutr ; 153(9): 2736-2743, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37451558

RESUMO

BACKGROUND: Earlier age at menarche is associated with behavioral and noncommunicable disease risks. The influence of birth weight (BW) (intrauterine) and postnatal growth on age at menarche is not well studied in low- and middle-income countries (LMICs). OBJECTIVE: Therefore, we investigated these associations in 5 LMIC birth cohorts. METHODS: We analyzed data from Brazil, Guatemala, India, the Philippines, and South Africa (n = 3983). We derived stunting (< -2 SD scores) at 24 mo using the WHO child growth standards. We generated interaction terms with categorized BW and conditional weight (lighter < 0 or heavier ≥ 0), and height (shorter < 0 or taller ≥ 0) z-scores. We categorized early-, modal-, and late-onset menarche and used multilevel ordinal regression. We used multilevel linear regression on continuous age at menarche. RESULTS: Mean age at menarche was 12.8 y (95% CI: 12.7 12.9). BW was not associated with age at menarche. Conditional height at 24 mo and mid-childhood (OR: 1.35; 95% CI: 1.27, 1.44 and 1.32; 1.25, 1.41, respectively) and conditional weight at 24 mo and mid-childhood (OR: 1.15; 1.08, 1.22 and 1.18; 1.11, 1.25, respectively) were associated with increased likelihood of early-onset menarche. Being heavier at birth and taller at 24 mo was associated with a 4-mo (95% CI: 0.8, 7.6) earlier age at menarche than being lighter at birth and shorter at 24 mo. Being heavier at birth but lighter in mid-childhood was associated with a 3-mo (95% CI: 0.8, 4.8) later age at menarche than being lighter at birth and mid-childhood. Age at menarche was 7 mo later in stunted than nonstunted girls. CONCLUSION: Age at menarche is inversely related to relative weight gain but also to rapid linear growth among those born shorter but remained stunted, and those born taller and grew excessively. These findings do not deter the global health goal to reduce growth faltering but emphasize the potential adverse effects of an obesogenic environment on adolescent development.


Assuntos
Países em Desenvolvimento , Menarca , Criança , Recém-Nascido , Feminino , Adolescente , Humanos , Lactente , Estudos Prospectivos , Peso ao Nascer , Desenvolvimento Infantil , Estatura
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