Long-term impact and risk factors for hysterectomy after hysteroscopic surgery for menorrhagia

Table 2 Predictors of hysterectomy in patients with hysteroscopic surgery for menorrhagia

Predictor^a	Univariant analysis			Cox regression model
	Hazard rate ratio	95% CI	p	Hazard rate ratio	95% CI	p
Tubal ligation	4.15	2.36–7.27	0.020	1.954	1.048–3.643	0.035
Perioperative complication	2.06	1.10–3.,88	0.049	2.088	0.854–5.106	0.106
Length of uterine cavity ≥9 cm	1.87	1.19–2.94	0.005	1.993	1.187–3.347	0.009

^aThe following items were not statistically significant: age, medical disease, cesarean delivery, endometrial thinning, use of levonorgestrel-releasing intrauterine system, late complication, abnormal histology, adenomyosis, myomectomy