Season of birth and recalled age at menarche

All 8th-form schoolgirls from the municipality of Odense in Denmark were asked at what age they reached menarche, and 886 girls (97·6%) gave this information. There is no evidence for seasonality in the time of birth but for far more girls than expected menarche occurred during winter or summer and...

Full description

Saved in:
Bibliographic Details
Published in:Journal of biosocial science 1992-04, Vol.24 (2), p.167-174
Main Author: Boldsen, Jesper L.
Format: Article
Language:English
Subjects:
Adolescent
Anthropology. Demography
Biological and medical sciences
Birth
Cross-Sectional Studies
Denmark
Denmark - epidemiology
Female
Fourier Analysis
Human physiology applied to population studies and life conditions. Human ecophysiology
Humans
Incidence
Medical sciences
Menarche
Menstruation
Population
Seasonality
Seasons
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:All 8th-form schoolgirls from the municipality of Odense in Denmark were asked at what age they reached menarche, and 886 girls (97·6%) gave this information. There is no evidence for seasonality in the time of birth but for far more girls than expected menarche occurred during winter or summer and fewer than expected during spring and autumn. This pattern appears primarily in girls living in the suburbs and was not seen in those living in central Odense. The seasonality appears to be brought about by differences in mean age at menarche according to time of the year at birth.
ISSN:0021-9320
1469-7599
DOI:10.1017/S0021932000019702