Table 3.

Multivariable Cox proportional hazards regression models predicting for urinary functional and erectile functional recovery

Predictor	Urinary function			Erectile function
	HR	95% CI	p value	HR	95% CI	p value
Functional domain score at 12 mo†	1.20	1.12–1.28	<0.0001	1.10	1.08–1.13	<0.0001
Patient age	0.96	0.94–0.99	0.002	0.98	0.96–1.00	0.045
Preoperative PSA	1.00	0.96–1.04	0.9	1.01	0.98–1.04	0.5
Body mass index	1.02	0.98–1.06	0.3	0.97	0.94–1.00	0.079
Comorbidities
0	Ref.			Ref.
1	1.26	0.83–1.92	0.3	0.93	0.67–1.29	0.7
2	0.94	0.59–1.49	0.8	0.71	0.46–1.10	0.12
≥3	1.13	0.63–2.03	0.7	1.19	0.71–2.02	0.5
Nerve-sparing status
None	Ref.
Unilateral	0.98	0.53–1.83	1.0	1.91	0.74–4.96	0.2
Bilateral	1.06	0.62–1.83	0.8	2.32	0.93–5.77	0.070
Pathologic Gleason score
≤6	Ref.			Ref.
7	1.19	0.77–1.83	0.4	1.27	0.87–1.86	0.2
≥8	1.22	0.55–2.74	0.6	1.23	0.57–2.68	0.6
Pathologic T stage
T2	Ref.			Ref.
T3 or higher	0.91	0.64–1.30	0.6	1.05	0.75–1.46	0.8

CI = confidence interval; HR = hazard ratio; IIEF-6 = International Index of Erectile Function; PSA = prostate-specific antigen; Ref. = reference.

In patients who have urinary incontinence or erectile dysfunction at 12 mo after radical prostatectomy.

^†For erectile function, the modified IIEF-6 scoring was applied to the functional domain score at 12 mo.