Parental bonding and personality in relation to a lifetime history of depression.

This study explores whether personality is mediating the effects of adverse parenting on having had a lifetime history of major depressive disorder and whether personality dimensions, related to the development of lifetime depression, are disposed by adverse parenting in cross-sectional data derived from an epidemiological sample of volunteer workers. Of 447 individuals who were asked to complete the Munich Personality Test (MPT), the Parental Bonding Instrument (PBI) and the Inventory to Diagnose Depression Lifetime version (IDDL), 322 subjects were included in the analyses (150 male and 172 female; and 38 were diagnosed as having had a history of depression). Comparisons in fit between logistic regression models revealed that a combination of frustration tolerance and rigidity among personality dimensions, as measured by the MPT, and maternal care among the PBI scales were most primary in predicting a lifetime history of depression. Maternal care was, however, not significantly predictive of dimensional scores on the personality dimensions. Neither frustration tolerance nor rigidity was predicted by any PBI scale. When entering the variables sequentially, maternal care and the personality variables were additive and independent risk factors in predicting a lifetime history of depression. The results of this preliminary study raised an objection to a hypothesis that adverse parenting experienced in childhood disposes one to a dysfunctional personality, which then predisposes one to the development of depression in adulthood.