Department of Psychology, University of Virginia, P.O. Box 400400, Charlottesville, VA 22904, USA.
J Fam Psychol. 2011 Jun;25(3):336-44. doi: 10.1037/a0023758.
This article uses a genetically informed design to evaluate whether (1) the well-documented association between marital support and depressive symptoms is accounted for by genetic and/or shared environmental selection, (2) gender differences are found after controlling for selection effects, and (3) parenthood moderates any nonshared environmental relation between depressive symptoms and marital support. We used a sample of 1,566 pairs of same-sexed, married twins from the Australian Twin Registry to evaluate our hypotheses that (1) the predicted effect of marital support on depressive symptoms is not fully an artifact of selection, (2) the etiological sources accounting for this effect differ between husbands and wives, and (3) parenthood status moderates the effect of marital support on depressive symptoms adjusting for selection effects. The results support the first hypotheses. However, after controlling for selection, the effect of marital support on depressive symptoms was not significantly different for husbands and wives. Parenthood moderated the effect of marital support, such that after controlling for selection, marital support is more strongly associated with depressive symptoms for full-time parents than nonfull-time parents.
本文采用遗传信息设计，评估以下内容：（1）婚姻支持与抑郁症状之间的关联是否由遗传和/或共同环境选择所解释；（2）控制选择效应后是否会发现性别差异；（3）父母身份是否调节抑郁症状与婚姻支持之间的任何非共享环境关系。我们使用来自澳大利亚双胞胎登记处的 1566 对同性已婚双胞胎样本，评估以下假设：（1）婚姻支持对抑郁症状的预测作用不是选择的完全假象；（2）导致这种效应的病因来源在丈夫和妻子之间不同；（3）在调整选择效应后，父母身份调节婚姻支持对抑郁症状的影响。结果支持第一个假设。然而，在控制选择后，婚姻支持对抑郁症状的影响在丈夫和妻子之间没有显著差异。父母身份调节了婚姻支持的作用，使得在控制选择后，与非全职父母相比，全职父母的婚姻支持与抑郁症状的相关性更强。
