Utilizations and characteristics of ovarian conservation at hysterectomy for cervical carcinoma in situ

Objective To examine the trends and characteristics of ovarian conservation at time of hysterectomy in cervical carcinoma in situ. Methods This is a retrospective cohort study examining the Healthcare Cost and Utilization Project's National Inpatient Sample, January 2016 to December 2019. The study population included 6605 patients aged less than 65 years with cervical carcinoma in situ who underwent hysterectomy. Exposure allocation was the adnexal procedure status (ovarian conservation vs. oophorectomy). Main outcome measures were temporal trends of ovarian conservation over time and per patient age. A classification‐tree was constructed to examine utilization patterns of ovarian conservation. Results Ovarian conservation was performed in 57.2% of patients. Ovarian conservation rates were unchanged over time (P‐trend = 0.219). Ovarian conservation rates remained stable until age 40 years, ranging from 88.0% to 78.6% (P‐trend = 0.236), after which time the rate sharply decreased from 78.6% to 19.1% (P‐trend