第一次出生时的年龄与产后抑郁症之间的关联:一个两样本的门德尔随机化分析分析
Zhaoxing Ou1, Ziqing Gao1, Qi Wang1
1Department of ultrasound, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China.
Heliyon
|October 4, 2023
概括
这项研究发现,推迟第一次分娩可以降低产后抑郁症 (PPD) 的风险. 门德尔随机分析证实了第一次分娩后的年龄和较低的PPD发病率之间的因果关系.
科学领域:
- 生殖健康 生殖健康
- 精神病学遗传学 精神病学遗传学
- 流行病学 流行病学
背景情况:
- 观察性研究表明,第一次分娩时的年龄 (AFB) 和产后抑郁症 (PPD) 之间存在联系.
- 这种关联的因果性需要进一步调查.
- 门德尔随机化 (MR) 提供了一个强大的方法来探索因果关系.
研究的目的:
- 调查第一次分娩时的年龄 (AFB) 对产后抑郁症 (PPD) 风险的因果关系.
- 用两个样本的孟德尔随机化分析来评估这种关系.
主要方法:
- 采用两样本的孟德尔随机化 (MR),使用来自大规模全基因组关联研究 (GWAS) 的遗传仪器变量.
- 利用了来自英国生物银行,尼尔实验室和芬根财团的总结统计数据 (13,657例PPD病例,236,178例对照).
- 应用了各种MR方法,包括反变量加权 (IVW) 和加权中位数,以及异质性和变性测试.
主要成果:
- 观察到显著的因果关系,表明第一次分娩时的年龄增加与产后抑郁症风险降低有关.
- 反变量加权 (IVW) 方法显示赔率比 (OR) 为0.59 (95% CI 0.36-0.96, p=0.03).
- 权重中位数分析证实了这些发现 (OR0.59,95% CI 0.37-0.95,p=0.03),没有检测到显著的异质性或水平变性.
结论:
- 门德尔的随机化分析支持一种因果关系,即在第一次分娩时的晚年年龄会对产后抑郁症产生保护作用.
- 确定了主要抑郁症,家庭收入和婚姻压力作为潜在的调解因素.
- 这些发现强化了在母亲心理健康的背景下考虑生殖时间的重要性.
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