To assess the rate of immediate postpartum long-acting reversible contraceptive (LARC) use in a multihospital health care system 2 years before and after the policy was implemented, and to assess factors associated with LARC use and repeat pregnancy rates within 12 months after delivery.

中文翻译：

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在国家政策强制住院之前和之后立即使用产后长效可逆避孕药。

旨在评估政策实施前后 2 年多医院医疗保健系统中产后立即使用长效可逆避孕药 (LARC) 的比率，并评估与 LARC 使用相关的因素和产后 12 个月内的重复妊娠率。