Wichstrøm Lars
Department of Psychology, Norwegian University of Science and Technology, Trondheim, Norway.
Int J Eat Disord. 2006 Sep;39(6):448-53. doi: 10.1002/eat.20286.
This study was carried out to examine whether sexual orientation predicts future bulimic symptoms and whether alleged risk factors associated with non-heterosexual sexual orientation explain the increased risk.
A nationally representative sample of Norwegian high school students (age 14-19; N=2,924) completed self-reports about bulimic symptoms by means of the Bulimic Investigatory Test-Edinborough (BITE), same-sex sexual experience, degree of sexual attraction to the same sex, and alleged risk factors. They were reexamined 5 years later (T2).
Same-sex sexual experience before T1 increased the prevalence of bulimic symptoms at T2. Males who were attracted to the same sex at T1 had higher odds for bulimic symptoms compared with heterosexual males. These associations were still significant after controlling for initial bulimic symptoms and alleged risk factors.
Same-sex sexual experience in both genders and non-heterosexual sexual attraction among males predict future bulimic symptoms. Commonly advocated explanations for this elevated risk were not supported.
本研究旨在探讨性取向是否能预测未来的暴食症状，以及与非异性恋性取向相关的所谓风险因素是否能解释这种增加的风险。
从挪威高中生中选取了一个具有全国代表性的样本（年龄14 - 19岁；N = 2924），通过爱丁堡暴食症调查测试（BITE）、同性性经历、对同性的性吸引力程度以及所谓的风险因素来完成关于暴食症状的自我报告。5年后（T2）对他们进行了重新检查。
T1之前的同性性经历增加了T2时暴食症状的患病率。与异性恋男性相比，T1时被同性吸引的男性出现暴食症状的几率更高。在控制了初始暴食症状和所谓的风险因素后，这些关联仍然显著。
两性的同性性经历以及男性中的非异性恋性吸引力可预测未来的暴食症状。对于这种风险升高的普遍倡导的解释未得到支持。
