Presented in part at the 15th World Congress of Psychosomatic Medicine, Athens, Greece, April 18, 1999.
Seasonal variations in eating disorder subtypes in Japan
Version of Record online: 6 DEC 2002
Copyright © 2003 Wiley Periodicals, Inc.
International Journal of Eating Disorders
Volume 33, Issue 1, pages 71–77, January 2003
How to Cite
Yamatsuji, M., Yamashita, T., Arii, I., Taga, C., Tatara, N. and Fukui, K. (2003), Seasonal variations in eating disorder subtypes in Japan. Int. J. Eat. Disord., 33: 71–77. doi: 10.1002/eat.10107
- Issue online: 6 DEC 2002
- Version of Record online: 6 DEC 2002
- Manuscript Accepted: 20 MAY 2002
- bulimia nervosa;
- seasonal affective disorder;
- seasonal pattern assessment questionnaire;
This study estimated the degree of seasonal changes in eating disorder subtypes in Japan.
A Japanese version of the Seasonal Pattern Assessment Questionnaire (SPAQ) was mailed to 228 outpatients with eating disorders in Kyoto (latitude 35° 01′ N). Ninety responses were analyzed. The mean of the global seasonality score (GSS) in the SPAQ and the comorbidity rate of seasonal affective disorder (SAD) and subsyndromal-SAD in each subtype were used as indices of seasonality.
The mean (8.2) of the GSS of the bulimia nervosa (BN) group and the sum (43%) of the comorbidity rates of SAD and subsyndromal-SAD in the BN group were significantly higher than those in the nonclinical comparison group.
The seasonality of BN in Kyoto is the highest among eating disorder subtypes, although lower than that in North America. This finding suggests that light therapy could be useful for Japanese BN patients. © 2002 by Wiley Periodicals, Inc. Int J Eat Disord 33: 71–77, 2003.