Sex ratio in the offspring of male radiologists

Citation
Y. Hama et al., Sex ratio in the offspring of male radiologists, ACAD RADIOL, 8(5), 2001, pp. 421-424
Citations number
21
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Radiology ,Nuclear Medicine & Imaging
Journal title
ACADEMIC RADIOLOGY
ISSN journal
1076-6332 → ACNP
Volume
8
Issue
5
Year of publication
2001
Pages
421 - 424
Database
ISI
SICI code
1076-6332(200105)8:5<421:SRITOO>2.0.ZU;2-0
Abstract
Rationale and Objectives. The purpose of this study was to determine if mal e radiologists predominantly father daughters and, if so, to investigate th e association between this skewed sex ratio of offspring and radiation expo sure. Materials and Methods. Questionnaires completed by 586 male radiologists in Japan provided data regarding the radiologist's age, length of employment in radiology, if he had ever received radiation doses higher than that reco mmended by the International Commission on Radiological Protection, the sex of each child fathered, and the birth date of each child. Results, As a group, male radiologists tended to father a lower proportion of boys (48.47%) compared with the control group (51.46%), and the relative risk was 1.13 (95% confidence interval [CI]: 1.00, 1.27). Offspring of hig hly irradiated radiologists, however, had a reduced proportion of males (34 .48%), with a significantly (P = .002) increased relative risk of 2.01 (95% CI: 1.29, 3.13). Conclusion. X-ray exposure may explain the reduced percentage of sons in th e offspring of male radiologists.