To investigate whether intervening miscarriages and induced abortions impact the associations between interpregnancy interval after a live birth and adverse pregnancy outcomes.

中文翻译：

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干预流产在妊娠间期与不良妊娠结局之间的关系中的作用

调查干预性流产和人工流产是否会影响活产后的妊娠间隔与不良妊娠结局之间的关联。