Table 5.

Multivariate regression of overall survival with the use of inverse-probability-of-treatment-weighted and standardized mortality ratio-weighted models comparing the nontransurethral resection of the prostate group and the transurethral resection of the prostate group

Exposure	IPTW model		SMRW model
	HR (95% CI)	P	HR (95% CI)	P
Non-TURP	1 (reference)		1 (reference)
TURP	2.63 (1.07–6.48)	0.036	2.68 (2.07–3.48)	<0.001

TURP: transurethral resection of the prostate; IPTW: inverse-probability-of-treatment weighted; SMRW: standardized mortality ratio weighted; HR: hazard ratio; CI: confidence interval