Offspring sex ratio at population level versus early and late onset preeclampsia.
Male dominance being higher at preterm than term delivery was described in a population-based study by Vatten and Skjaerven [Early Hum. Dev. 76 (2004) 47]. A so-called "reversion" and "cross-over" in the sex ratio took place in preeclamptic gestations. These phenomena occurred earlier and stronger when associated with perinatal mortality and are in line with the overripeness ovopathy concept.
Department Epidemiology and Biostatistics, University Medical Centre Nijmegen, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands. p.jongbloet@epib.umcn.nl
Piet Hein
PH
Jongbloet
D000328:Adult; D005260:Female; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D009664:Norway / Q000453:epidemiology; D010060:Ovulation / Q000502:physiology; D010063:Ovum / Q000254:growth & development / Q000473:pathology; D011225:Pre-Eclampsia / Q000150:complications* / Q000401:mortality; D011247:Pregnancy; D011256:Pregnancy Outcome / Q000453:epidemiology; D012042:Registries; D012737:Sex Factors; D012744:Sex Ratio; D013997:Time Factors