A technique for comparing the relative importance of season of conception and season of birth: application to emotionally disturbed children.

Autor: McNeil, Thomas F., Raff, Carol S., Cromwell, Rue L., McNeil, T F, Raff, C S, Cromwell, R L
Předmět:
Zdroj: British Journal of Psychiatry; Mar71, Vol. 118 Issue 544, p329-335, 7p, 5 Charts
Abstrakt: The article presents a study conducted to 469 emotionally disturbed children from 17 child treatment centers in the U.S. and from a treatment center in Canada to compare the season of conception with the season of birth. The method was based on the grouping of the calendar year into cold months of December, January, and February; the hot months of June, July, and August; and the remaining other months. Results depict consistency with the often-cited relationship between the seasonality of birth and the psychiatric disturbance. However, as indicated, temperature or temperature-related influence near the time of conception was found to be a relevant factor, rather than the time of birth. Thus, further study of their behavioral characteristics during conception in hot months are required.
Databáze: Complementary Index