Table 2.

Adjusted Analysis of Time to Intervention after TURP and Laser procedures^*

		95% Confidence Intervals
Effects	HR	Lower	Upper	P- values
Medications Used before Procedure
None	ref
5-ARI	0.98	0.73	1.32	0.887
Alpha Blocker	1.04	0.90	1.21	0.581
Anti-Spasmodic	2.49	1.41	4.43	0.002
Multiple Medications	1.37	1.07	1.75	0.014
Age (years)	1.08	1.06	1.10	<0.001
Comorbidity
0	ref
1	1.10	0.91	1.32	0.331
>=2	1.39	1.08	1.78	0.011
Surgery Year
2009	ref
2007	1.02	0.86	1.21	0.838
2008	0.96	0.81	1.14	0.619
Laser vs. TURP	1.22	1.06	1.40	0.004

^*A Cox proportional hazards model was fit with the outcome being use of medical or surgical therapy after initial successful surgical therapy with either laser or TURP. Medication used reflect the pre-operative medications used by patients.