https://www.selleckchem.com/products/o6-benzylguanine.html 78, 95% confidence interval (CI) -36.68-0.88; P=0.04), less intraoperative blood loss (MD=-166.57, 95%CI -248.51--84.63; P less then 0.000 1), shorter post-operative hospital stays (MD=-5.00, 95%CI -6.43--3.57; P less then 0.000 1), less complication rate (OR=0.47, 95%CI 0.28-0.79; P=0.004), but there was no significant difference on the aspects of recurrence rate (OR=0.48, 95%CI 0.21-1.11; P=0.09), 5-year overall survival (HR=0.93, 95%CI 0.54-1.61, I2=33.5%, P=0.198) and long-term survival. Conclusion Whether it is radical cholecystectomy (RC) or simple cholecystectomy (SC), the short-term efficacy of LC is more significant than that of OC, and the long-term survival rate has no significant statistical difference. Limited by the quality of literature and experiments, the above conclusions still need to be supported by higher quality research.Objective To investigate the incidence of preterm birth in Guangxi Zhuang Autonomous Region and explore the related factors and their combined effects. Methods The study subjects were women giving birth to live babies at the monitoring points of critical maternal hospital monitoring system in Guangxi Zhuang Autonomous Region from January 1, 2017 to December 31, 2019. The data of general characteristics (age and marital status), pregnancies (parity, number of previous cesarean delivery, the number of prenatal check and number of fetuses in this pregnancy) and disease conditions (placenta previa, placental abruption, hypertension, diabetes, anemia, and heart disease) were collected, and the incidence of preterm birth were calculated according to the definition of preterm birth set by WHO and China, respectively. Logistic regression model was used to explore the factors associated with premature birth and their combined effects. Results According to definitions of WHO and China, the cumulative incidence of preterisk of preterm birth in pregnant women exposed to 1, 2, 3, 4,