Methods Complications during labor for 268 women with a history of medication abortion, 623 women with a history of induced abortion, and 329 women in their first parities were collected and compared.

• 方法采用回顾性调查方法,对268例有药物流产史的初孕妇女,623例有人工流产史及329例无流产史的初孕妇女进行对照分析。