When gender of 9,284 single fetuses, which were delivered at term in the Policlinic of Modena between 1997-2001, was stratified for month of conception and for quartiles of pregravid maternal weight, it showed that the ratio of male to female fetuses (secondary sex ratio) was characterized by a clear seasonal variation that was modulated by pregravid maternal weight. Two seasonal peaks of sex ratio (March and October +/- 31 days) were observed in mothers in the lowest two quartiles of prepregnancy body weight (< or =62 kg), and one single peak (October +/-36 days) was observed in mothers with preconception weight in the upper two quartiles.

Interplay between maternal weight and seasons in determining the secondary sex ratio of human offspring / Cagnacci, Angelo; Renzi, A; Arangino, S; Alessandrini, C; Volpe, Annibale. - In: FERTILITY AND STERILITY. - ISSN 0015-0282. - STAMPA. - 84:1(2005), pp. 246-248. [10.1016/j.fertnstert.2004.12.054]

Interplay between maternal weight and seasons in determining the secondary sex ratio of human offspring

CAGNACCI, Angelo;VOLPE, Annibale
2005

Abstract

When gender of 9,284 single fetuses, which were delivered at term in the Policlinic of Modena between 1997-2001, was stratified for month of conception and for quartiles of pregravid maternal weight, it showed that the ratio of male to female fetuses (secondary sex ratio) was characterized by a clear seasonal variation that was modulated by pregravid maternal weight. Two seasonal peaks of sex ratio (March and October +/- 31 days) were observed in mothers in the lowest two quartiles of prepregnancy body weight (< or =62 kg), and one single peak (October +/-36 days) was observed in mothers with preconception weight in the upper two quartiles.
2005
84
1
246
248
Interplay between maternal weight and seasons in determining the secondary sex ratio of human offspring / Cagnacci, Angelo; Renzi, A; Arangino, S; Alessandrini, C; Volpe, Annibale. - In: FERTILITY AND STERILITY. - ISSN 0015-0282. - STAMPA. - 84:1(2005), pp. 246-248. [10.1016/j.fertnstert.2004.12.054]
Cagnacci, Angelo; Renzi, A; Arangino, S; Alessandrini, C; Volpe, Annibale
File in questo prodotto:
File Dimensione Formato  
Fzertil Steril 2005 .pdf

Accesso riservato

Tipologia: Abstract
Dimensione 115.16 kB
Formato Adobe PDF
115.16 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/741551
Citazioni
  • ???jsp.display-item.citation.pmc??? 4
  • Scopus 14
  • ???jsp.display-item.citation.isi??? 14
social impact