Letter to the editor |
Comment on ‘Season of birth influences the timing of menopause’
Department of Obstetrics and Gynecology, University of Fukui, Matsuoka-cho, Yoshida-gun, Fukui, 910-1193, Japan
1 To whom correspondence should be addressed. E-mail: kojigyne{at}fmsrsa.fukui-med.ac.jp
Sir,
We read with great interest the article by Cagnacci et al. (2005a)
, which related that season and month of birth influenced the timing of menopause. Cagnacci simultaneously published an article, which also examined the seasonal onset of menopause, in another journal (Cagnacci et al., 2005b). In the latter article, which retrospectively researched 2436 post-menopausal women, the onset of menopause was more frequent (P < 0.0001) in winter (32.5%) than in spring (20.8%), autumn (20.3%) and summer (26.2%); a minor peak was also observed (P < 0.0001 versus spring and autumn).
Cagnacci et al.’s study would have been more useful if opinions about the seasonal onset of menopause had been included with that former study to reduce the bias.
References
Cagnacci A, Pansini FS, Bacchi-Modena A, Giulini N, Mollica G, De Aloysio D, Vadora E and Volpe A (2005a) Season of birth influences the timing of menopause. Hum Reprod 20,2190–2193.
Cagnacci A, Pansini FS, Bacchi-Modena A, Giulini N, Mollica G, Aloysio DD, Vadora E and Volpe A: Emilia-Romagna Operative Group for Menopause (GOERM) (2005b) Seasonal onset of the menopause. Maturitas 51,393–396.[Medline]
CiteULike 
Connotea 
Del.icio.us What's this?
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||