Sex Ratios at Birth in African Populations: A Review of Survey Data

  title={Sex Ratios at Birth in African Populations: A Review of Survey Data},
  author={Michel Garenne},
  journal={Human Biology},
  pages={889 - 900}
  • M. Garenne
  • Published 1 December 2002
  • Economics
  • Human Biology
This study analyzes the distribution of sex ratio at birth in African populations using data collected in birth histories in sample demographic surveys (Demographic and Health Surveys and World Fertility Surveys). The average sex ratio from 56 surveys, totaling 1.130 million births, was 1.033 (95% CI, 1.029-1.037), significantly different from the world average of 1.055. The distribution of sex ratios across surveys was found to be heterogeneous, and different from what could have been expected… 

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