According to Lewisohn's model of depression, decreases in behavioral activation (BA) occurring after facing a vital stressor may increase the risk of depression. Transition to parenthood is a potentially stressful life event that increases the risks of postpartum depression. We aimed to (a) describe the changes in BA and depressive symptomatology between the prepartum period, 1 month, 3 months, and 6 months postpartum and (b) evaluate the bidirectionality of the relationship between intraindividual changes in BA and intraindividual changes in depressive symptoms longitudinally. Chilean pregnant women (N = 503) completed a battery of questionnaires when they were between 32 and 37 weeks of gestation and 1, 3, and 6 months after delivery. A repeated measures analysis of variance showed that BA significantly decreased from prepartum to 1 month postpartum. A random intercept cross-lagged panel model supported the bidirectional inverse relationship between intraindividual changes in BA and intraindividual changes in depressive symptoms. The effect sizes of these associations were large (βs ranging from -.141 to -.243) according to Orth et al. (2022)'s recommendations for cross-lagged effect benchmarks. This relationship showed robustness when multigroup random intercept cross-lagged panel models were conducted to adjust for several covariates (i.e., marital status, the type of health insurance, type of delivery, primiparous vs. multiparous participants, and pregnancy or delivery complication or newborn health problem). Nonetheless, reporting a previous history of major depression moderated this relationship so that intraindividual decreases in BA more likely led to intraindividual increases in depressive symptoms in people with a history of depression than in people without such a history. We discuss implications for behavioral models of depression. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

中文翻译：

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个体内行为激活变化与个体内产后抑郁症状变化之间的双向关系：随机截距交叉滞后面板模型。


根据 Lewisohn 的抑郁症模型，面对重大压力源后发生的行为激活 (BA) 减少可能会增加患抑郁症的风险。为人父母的过渡是一个潜在的压力性生活事件，会增加产后抑郁症的风险。我们的目的是 (a) 描述产前期、产后 1 个月、3 个月和 6 个月之间 BA 和抑郁症状的变化，以及 (b) 评估个体内 BA 变化与个体内抑郁症状变化之间关系的双向性纵向。智利孕妇 (N = 503) 在妊娠 32 至 37 周以及产后 1、3 和 6 个月时完成了一系列调查问卷。重复测量方差分析表明，从产前到产后 1 个月，BA 显着下降。随机截距交叉滞后面板模型支持个体内 BA 变化与个体内抑郁症状变化之间的双向逆关系。根据 Orth 等人的说法，这些关联的效应量很大（β 范围从 -.141 到 -.243）。 (2022) 对交叉滞后效应基准的建议。当进行多组随机截距交叉滞后面板模型来调整几个协变量（即婚姻状况、健康保险类型、分娩类型、初产与多产参与者、妊娠或分娩并发症或新生儿健康）时，这种关系表现出稳健性问题）。 尽管如此，报告既往重度抑郁症病史会缓和这种关系，因此，与没有抑郁症病史的人相比，有抑郁症病史的人个体内 BA 的下降更有可能导致个体内抑郁症状的增加。我们讨论抑郁症行为模型的影响。 （PsycInfo 数据库记录 (c) 2024 APA，保留所有权利）。