Hyperemesis gravidarum per se was not associated adverse pregnancy outcome. Hypokalemia, high creatinine and raised gamma glutamyltransferase in women with hyperemesis gravidarum were associated with adverse pregnancy outcome.
The association between female fetal sex and hyperemesis gravidarum is well established in European and North American populations. The association between female fetuses and severity of hyperemesis remains uncertain. A retrospective study based on case notes review of 166 Asian women hospitalised for hyperemesis was performed. Female fetuses were significantly associated with hyperemesis in our population (P = 0.004, OR 1.6, 95% CI 1.2-2.2) as well as associated with severe ketonuria and high urea. When both severe ketonuria and high urea were present at initial hospital admission for hyperemesis, 83% (95% CI 66-93) of the fetuses were female.Keywords Fetal sex, hyperemesis gravidarum, ketonuria, urea.Please cite this paper as: Tan P, Jacob R, Quek K, Omar S. The fetal sex ratio and metabolic, biochemical, haematological and clinical indicators of severity of hyperemesis gravidarum. BJOG 2006; 113:733-737.
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