Is maternal malnutrition associated with a low sex ratio at birth?

Acknowledgments This research was supported by the Swedish Agency for Research Cooperation with Developing Countries (SAREC) through grant 87/pl 58.

Received I August 1997; final revision received 18 March 1998.

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1 Centre Medical, Gamboula, Central African Republic.

2 Department of Surgery, County Hospital Ryhov, S-55185 Jonkoping, Sweden.

3 Department of Public Health Sciences, Division of International Health Care Research (IHCAR), Karolinska Institutet, Stockholm, Sweden.

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