Associations between the time interval from complete hysteroscopic surgery to the date of conception and risk of adverse obstetric outcomes
The time interval from complete hysteroscopic surgery to the date of conception may impact obstetrical outcomes, and we further examined the associations of this time interval with adverse obstetrical outcomes. Among the 780 women with a history of HA management of IUAs, 229 completed hysteroscopic surgery within 3 months before the date of conception, and 551 completed hysteroscopic surgery more than 3 months after conception. As shown in Table 3 , the RRs of PE, placenta previa, placenta accreta spectrum, PPH, PPROM and iatrogenic PTB were generally similar (overlapping 95% CIs) among women who completed hysteroscopic surgery within 3 months before and more than 3 months before the date of conception. Additionally, this time interval also did not affect the likelihood of receiving cervical cerclage or hemostatic therapies.