Boys are more stunted than girls in Sub-Saharan Africa: a meta-analysis of 16 demographic and health surveys
2007

Boys are more stunted than girls in Sub-Saharan Africa

Sample size: 64000 publication Evidence: high

Author Information

Author(s): Wamani Henry, Åstrøm Anne Nordrehaug, Peterson Stefan, Tumwine James K, Tylleskär Thorkild

Primary Institution: Centre for International Health, University of Bergen

Hypothesis

In many low-income countries in sub-Saharan Africa, male children will be more stunted than their female counterparts.

Conclusion

In sub-Saharan Africa, male children under five years of age are more likely to become stunted than females, suggesting that boys are more vulnerable to health inequalities.

Supporting Evidence

  • The prevalence of stunting was higher in boys (40%) than in girls (36%).
  • The mean z-scores for boys were consistently lower than for girls across all studies.
  • Statistically significant differences in stunting rates were found in 11 out of 16 studies.

Takeaway

This study found that boys in Africa are more likely to be shorter than girls because they don't get enough food and care.

Methodology

Data from 16 demographic and health surveys in 10 sub-Saharan countries were analyzed using statistical tests including t-tests and logistic regressions.

Potential Biases

Potential biases due to non-random loss of participants and misclassification of socio-economic status.

Limitations

Approximately 25% of children had missing anthropometric data, which could bias the results.

Participant Demographics

Children under five years of age from 10 sub-Saharan African countries.

Statistical Information

P-Value

p < 0.001

Confidence Interval

95% CI 1.12–1.20

Statistical Significance

p < 0.001

Digital Object Identifier (DOI)

10.1186/1471-2431-7-17

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