scholarly journals Growth patterns by sex and age among under-5 children from 87 low-income and middle-income countries

2021 ◽  
Vol 6 (11) ◽  
pp. e007152
Author(s):  
Janaína Calu Costa ◽  
Cauane Blumenberg ◽  
Cesar Victora
Keyword(s):  
Sex Differences ◽  
Low Income ◽  
Linear Growth ◽  
Age Groups ◽  
National Income ◽  
Growth Patterns ◽  
Demographic And Health Surveys ◽  
Middle Income ◽  
Middle Income Countries ◽  
Height For Age

IntroductionAlthough boys tend to be more affected by linear growth faltering than girls, little is known about sex differences across distinct age groups. We aimed to compare sex differences in linear growth throughout the first 5 years of life among children from low-income and middle-income countries.MethodsWe analysed 87 cross-sectional Demographic and Health Surveys and Multiple Cluster Indicator Surveys (2010–2019). Growth was expressed as height-for-age z-scores (HAZ) based on the 2006 WHO Growth Standards. Sex-specific means were estimated for each country and results were pooled through random-effects meta-analysis for all children and by 12-month age groups. Using linear regression, we assessed the association between sex differences in HAZ and gross domestic product as a proxy for national economic development.ResultsBoys presented lower mean HAZ than girls in the first 30 months. Sex differences were mostly absent between 30 and 45 months, and in several countries, girls had lower HAZ at ages over 45 months. The pooled sex difference (boys minus girls) for the whole sample was −0.10 (95% CI −0.12 to −0.08). The difference was −0.17 (95% CI −0.20 to −0.14) at 0–11 months and −0.22 (95% CI −0.25 to −0.19) at 12–23 months. This was followed by a narrowing of the sex gap to −0.10 (95% CI −0.13 to −0.07) and −0.04 (95% CI −0.07 to −0.01) among children aged 24–35 and 36–47 months, respectively. At 48–59 months, there was evidence of female disadvantage; the mean height-for-age of boys was 0.02 (95% CI 0.00 to 0.05) SDs higher than for girls. Ecological analyses showed that in all age groups, male disadvantage decreased with increasing national income, and this was no longer present for the 4-year-old children, particularly in wealthier countries.ConclusionMale disadvantage in linear growth is most evident in the first years, but by the age of 4 years, the sex gap has mostly disappeared, and in some countries, the gap has been reversed.

scholarly journals Distribution of under-5 deaths in the neonatal, postneonatal, and childhood periods: a multicountry analysis in 64 low- and middle-income countries

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Zhihui Li ◽  
Omar Karlsson ◽  
Rockli Kim ◽  
S. V. Subramanian
Keyword(s):  
Low Income ◽  
Age Groups ◽  
Low Income Countries ◽  
Gdp Per Capita ◽  
Demographic And Health Surveys ◽  
Relative Distribution ◽  
Middle Income ◽  
Middle Income Countries ◽  
Per Capita ◽  
Low And Middle Income

Abstract Background As under-5 mortality rates declined all over the world, the relative distribution of under-5 deaths during different periods of life changed. To provide information for policymakers to plan for multi-layer health strategies targeting child health, it is essential to quantify the distribution of under-5 deaths by age groups. Methods Using 245 Demographic and Health Surveys from 64 low- and middle-income countries conducted between 1986 and 2018, we compiled a database of 2,437,718 children under-5 years old with 173,493 deaths. We examined the share of deaths that occurred in the neonatal (< 1 month), postneonatal (1 month to 1 year old), and childhood (1 to 5 years old) periods to the total number of under-5 deaths at both aggregate- and country-level. We estimated the annual change in share of deaths to track the changes over time. We also assessed the association between share of deaths and Gross Domestic Product (GDP) per capita. Results Neonatal deaths accounted for 53.1% (95% confidence interval [CI]: 52.7, 53.4) of the total under-5 deaths. The neonatal share of deaths was lower in low-income countries at 44.0% (43.5, 44.5), and higher in lower-middle-income and upper-middle income countries at 57.2% (56.8, 57.6) and 54.7% (53.8, 55.5) respectively. There was substantial heterogeneity in share of deaths across countries; for example, the share of neonatal to total under-5 deaths ranged from 20.9% (14.1, 27.6) in Eswatini to 82.8% (73.0, 92.6) in Dominican Republic. The shares of deaths in all three periods were significantly associated with GDP per capita, but in different directions—as GDP per capita increased by 10%, the neonatal share of deaths would significantly increase by 0.78 percentage points [PPs] (0.43, 1.13), and the postneonatal and childhood shares of deaths would significantly decrease by 0.29 PPs (0.04, 0.54) and 0.49 PPs (0.24, 0.74) respectively. Conclusions Along with the countries’ economic development, an increasing proportion of under-5 deaths occurs in the neonatal period, suggesting a need for multi-layer health strategies with potentially heavier investment in newborn health.

scholarly journals Age patterns in overweight and wasting prevalence of under 5-year-old children from low- and middle-income countries

2021 ◽  
Author(s):  
Luiza I. C. Ricardo ◽  
Giovanna Gatica-Domínguez ◽  
Inácio Crochemore-Silva ◽  
Paulo A. R. Neves ◽  
Juliana dos Santos Vaz ◽  
...  
Keyword(s):  
Low Income ◽  
Age Groups ◽  
Demographic And Health Surveys ◽  
Older Children ◽  
Middle Income ◽  
Middle Income Countries ◽  
Multiple Indicator ◽  
Standard Deviations ◽  
Nationally Representative ◽  
Low And Middle Income

Abstract Objectives To describe how overweight and wasting prevalence varies with age among children under 5 years in low- and middle-income countries (LMICs). Methods We used data from nationally representative Demographic and Health Surveys and Multiple Indicator Cluster Surveys. Overweight and wasting prevalence were defined as the proportions of children presenting mean weight for length/height (WHZ) more than 2 standard deviations above or below 2 standard deviations from the median value of the 2006 WHO standards, respectively. Descriptive analyses include national estimates of child overweight and wasting prevalence, mean, and standard deviations of WHZ stratified by age in years. National results were pooled using the population of children aged under 5 years in each country as weight. Fractional polynomials were used to compare mean WHZ with both overweight and wasting prevalence. Results Ninety national surveys from LMICs carried out between 2010 and 2019 were included. The overall prevalence of overweight declined with age from 6.3% for infants (aged 0–11 months) to 3.0% in 4 years olds (p = 0.03). In all age groups, lower prevalence was observed in low-income compared to upper-middle-income countries. Wasting was also more frequent among infants, with a slight decrease between the first and second year of life, and little variation thereafter. Lower-middle-income countries showed the highest wasting prevalence in all age groups. On the other hand, mean WHZ was stable over the first 5 years of life, but the median standard deviation for WHZ decreased from 1.39 in infants to 1.09 in 4-year-old children (p < 0.001). For any given value of WHZ, both overweight and wasting prevalence were higher in infants than in older children. Conclusion The higher values of WHZ standard deviations in infants suggest that declining prevalence in overweight and wasting by age may be possibly due to measurement error or rapid crossing of growth channels by infants.

scholarly journals A novel development indicator based on population-average height trajectories of children aged 0–5 years modelled using 145 surveys in 64 countries, 2000–2018

2021 ◽  
Vol 6 (3) ◽  
pp. e004107
Author(s):  
Eric O Ohuma ◽  
Diego G Bassani ◽  
Huma Qamar ◽  
Seungmi Yang ◽  
Daniel E Roth
Keyword(s):  
Low Income ◽  
Linear Growth ◽  
Average Length ◽  
Child Growth ◽  
Demographic And Health Surveys ◽  
Average Height ◽  
Cross Sectional ◽  
Middle Income ◽  
Middle Income Countries ◽  
Children Under 5

IntroductionChildren’s growth status is an important measure commonly used as a proxy indicator of advancements in a country’s health, human capital and economic development. We aimed to assess the feasibility of using Super-Imposition by Translation And Rotation (SITAR) models for summarising population-based cross-sectional height-by-age data of children under 5 years across 64 countries.MethodsUsing 145 publicly available Demographic and Health Surveys of children under 5 years across 64 low-income and middle-income countries from 2000 to 2018, we created a multicountry pseudo-longitudinal dataset of children’s heights.ResultsSITAR models including two parameters (size and intensity) explained 81% of the between-survey variation in mean boys’ height and 80% in mean girls’ height. Size parameters for boys and girls (relative to the WHO child growth standards) were distributed non-normally around a mean of −5.2 cm for boys (range: −7.9 cm to −1.6 cm) and −4.9 cm for girls (range: −7.7 cm to −1.2 cm). Boys exhibited 10% slower linear growth compared with the WHO (range: 19.7% slower to 1.6% faster) and girls 11% slower linear growth compared with the WHO (range: 21.4% slower to 1.0% faster). Variation in the SITAR size parameter was ≥90% explained by the combination of average length within the first 60 days of birth (as a proxy for fetal growth) and intensity, regardless of sex, with much greater contribution by postnatal intensity (r≥0.89 between size and intensity).ConclusionsSITAR models with two random effects can be used to model child linear growth using multicountry pseudo-longitudinal data, and thereby provide a feasible alternative approach to summarising early childhood height trajectories based on survey data. The SITAR intensity parameter may be a novel indicator for specifically tracking progress in the determinants of postnatal growth in low-income and middle-income countries.

scholarly journals Impact of measles supplementary immunisation activities on utilisation of maternal and child health services in low-income and middle-income countries

2018 ◽  
Vol 3 (3) ◽  
pp. e000466 ◽  
Author(s):  
Iryna Postolovska ◽  
Stéphane Helleringer ◽  
Margaret E Kruk ◽  
Stéphane Verguet
Keyword(s):  
Child Health ◽  
Health Services ◽  
Maternal And Child Health ◽  
Low Income ◽  
Child Health Services ◽  
Demographic And Health Surveys ◽  
Care Seeking ◽  
Middle Income ◽  
Middle Income Countries ◽  
And Child Health

BackgroundMeasles supplementary immunisation activities (SIAs) are an integral component of measles elimination in low-income and middle-income countries (LMICs). Despite their success in increasing vaccination coverage, there are concerns about their negative consequences on routine services. Few studies have conducted quantitative assessments of SIA impact on utilisation of health services.MethodsWe analysed the impact of SIAs on utilisation of selected maternal and child health services using Demographic and Health Surveys and Multiple Indicator Cluster Surveys from 28 LMICs, where at least one SIA occurred over 2000–2014. Logistic regressions were conducted to investigate the association between SIAs and utilisation of the following services: facility delivery, postnatal care and outpatient sick child care (for fever, diarrhoea, cough).ResultsSIAs do not appear to significantly impact utilisation of maternal and child services. We find a reduction in care-seeking for treatment of child cough (OR 0.67; 95% CI 0.48 to 0.95); and a few significant effects at the country level, suggesting the need for further investigation of the idiosyncratic effects of SIAs in each country.ConclusionThe paper contributes to the debate on vertical versus horizontal programmes to ensure universal access to vaccination. Measles SIAs do not seem to affect care-seeking for critical conditions.

scholarly journals The cost-effectiveness of hypertension management in low-income and middle-income countries: a review

2020 ◽  
Vol 5 (9) ◽  
pp. e002213
Author(s):  
Deliana Kostova ◽  
Garrison Spencer ◽  
Andrew E Moran ◽  
Laura K Cobb ◽  
Muhammad Jami Husain ◽  
...  
Keyword(s):  
Cost Effectiveness ◽  
Low Income ◽  
Disease Risk ◽  
National Income ◽  
Economic Evaluations ◽  
Health Improvement ◽  
Middle Income ◽  
Middle Income Countries ◽  
Wide Range ◽  
The Cost

Hypertension in low-income and middle-income countries (LMICs) is largely undiagnosed and uncontrolled, representing an untapped opportunity for public health improvement. Implementation of hypertension control strategies in low-resource settings depends in large part on cost considerations. However, evidence on the cost-effectiveness of hypertension interventions in LMICs is varied across geographical, clinical and evaluation contexts. We conducted a comprehensive search for published economic evaluations of hypertension treatment programmes in LMICs. The search identified 71 articles assessing a wide range of hypertension intervention designs and cost components, of which 42 studies across 15 countries reported estimates of cost-effectiveness. Although comparability of results was limited due to heterogeneity in the interventions assessed, populations studied, costs and study quality score, most interventions that reported cost per averted disability-adjusted life-year (DALY) were cost-effective, with costs per averted DALY not exceeding national income thresholds. Programme elements that may reduce cost-effectiveness included screening for hypertension at younger ages, addressing prehypertension, or treating patients at lower cardiovascular disease risk. Cost-effectiveness analysis could provide the evidence base to guide the initiation and development of hypertension programmes.

scholarly journals Distributing development assistance for health: simulating the implications of 11 criteria

2017 ◽  
Vol 12 (2) ◽  
pp. 245-263
Author(s):  
Trygve Ottersen ◽  
Suerie Moon ◽  
John-Arne Røttingen
Keyword(s):  
Low Income ◽  
Economic Transition ◽  
Development Assistance ◽  
National Income ◽  
Low Income Countries ◽  
Economic Downturn ◽  
Middle Income ◽  
Development Assistance For Health ◽  
Middle Income Countries ◽  
Almost All

AbstractAfter years of unprecedented growth in development assistance for health (DAH), the DAH system is challenged on several fronts: by the economic downturn and stagnation of DAH, by the epidemiological transition and increase in non-communicable diseases and by the economic transition and rise of the middle-income countries. Central to any potent response is a fair and effective allocation of DAH across countries. A myriad of criteria has been proposed or is currently used, but there have been no comprehensive assessment of their distributional implications. We simulated the implications of 11 quantitative allocation criteria across countries and country categories. We found that the distributions varied profoundly. The group of low-income countries received most DAH from needs-based criteria linked to domestic capacity, while the group of upper-middle-income countries was most favoured by an income-inequality criterion. Compared to a baseline distribution guided by gross national income per capita, low-income countries received less DAH by almost all criteria. The findings can inform funders when examining and revising the criteria they use, and provide input to the broader debate about what criteria should be used.

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