title: Revisiting the effect of marital support on depressive symptoms in mothers and fathers: a genetically informed study.
abstract: 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.
authors.affiliation: Department of Psychology, University of Virginia, P.O. Box 400400, Charlottesville, VA 22904, USA. crb8v@virginia.edu
authors.forename: Christopher R
authors.initials: CR
authors.lastname: Beam
authors.forename: Erin E
authors.initials: EE
authors.lastname: Horn
authors.forename: Stacy Karagis
authors.initials: SK
authors.lastname: Hunt
authors.forename: Robert E
authors.initials: RE
authors.lastname: Emery
authors.forename: Eric
authors.initials: E
authors.lastname: Turkheimer
authors.forename: Nick
authors.initials: N
authors.lastname: Martin
mesh_terms: D003863:Depression / Q000235:genetics / Q000523:psychology*; D054541:Family Conflict / Q000523:psychology; D005220:Fathers / Q000523:psychology*; D005260:Female; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D008393:Marriage / Q000523:psychology*; D009035:Mothers / Q000523:psychology*; D012307:Risk Factors; D012737:Sex Factors; D014429:Twins, Dizygotic / Q000523:psychology; D014430:Twins, Monozygotic / Q000523:psychology