OBJECTIVE Given the lifelong implications of extended postpartum depression (PPD), research is needed to examine the social factors implicated in its development (such as relationship quality) and associated predictors. This study sought to examine the association of partner relationship quality (PRQ) and decline of sexual life (DSL) with maternal PPD at 12-15 months after childbirth. METHODS Prospective study of 294 low-income postpartum women. A structured questionnaire and the Patient Health Questionnaire-9 (PHQ-9) captured responses for the main outcome variable and covariates. RESULTS The prevalence of the main outcome (PPD at 12-15 months) was 19.1%. Using logistic regression models, low PRQ (risk ratio [RR] = 1.58, 95%CI 1.01-2.49) and DSL (RR = 1.97, 95%CI 1.23-3.15) were associated with PPD at 12-15 months even after controlling for perinatal depression. CONCLUSIONS Late PPD (12 to 15 months after giving birth) is very common among low-income women, and is independently associated with different aspects of the couple's relationship. Improving PRQ may prevent late PPD. Future investigations are warranted.

中文翻译：

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伴侣关系质量可独立于抑郁症状的长期性预测后期产后抑郁

目标考虑到延长产后抑郁症 (PPD) 的终生影响，需要进行研究以检查其发展中涉及的社会因素（例如关系质量）和相关的预测因素。本研究旨在检查伴侣关系质量 (PRQ) 和性生活下降 (DSL) 与产后 12-15 个月母亲 PPD 的关系。方法 对 294 名低收入产后妇女进行前瞻性研究。结构化问卷和患者健康问卷 9 (PHQ-9) 捕获了对主要结果变量和协变量的响应。结果 主要结局（12-15 个月的 PPD）的发生率为 19.1%。使用逻辑回归模型，低 PRQ（风险比 [RR] = 1.58，95%CI 1.01-2.49）和 DSL（RR = 1.97，95%CI 1.23-3。15) 在 12-15 个月时与 PPD 相关，即使在控制了围产期抑郁症之后。结论 晚期 PPD（产后 12 至 15 个月）在低收入女性中很常见，并且与夫妻关系的不同方面独立相关。提高 PRQ 可以防止后期 PPD。未来的调查是有必要的。