Open AccessThe male disadvantage and the seasonal rhythm of sex ratio at the time of conception
Author(s) -
Angelo Cagnacci
Publication year - 2003
Publication title -
human reproduction
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.446
H-Index - 226
eISSN - 1460-2350
pISSN - 0268-1161
DOI - 10.1093/humrep/deg185
Subject(s) - sex ratio , demography , confidence interval , rhythm , pregnancy , reproduction , medicine , obstetrics , biology , population , ecology , sociology , genetics
In accordance with a presumed greater fragility of male versus female pregnancies, we tested whether sex ratio (male/female ratio) of vital pregnancies is higher in seasons more favourable for reproduction.
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