Table 2.

Univariate and multivariate Cox analysis of CSS.

Characteristics		5-year CSS %	10-year CSS %	Univariate analysis		Multivariate analysis
				HR [95%CI]	P	HR [95%CI]	P
Gleason score	3+4 = 7	98.70	96.30	1	<0.001	1	<0.001
	4+3 = 7	96.60	91.40	2.538 [2.351–2.740]		1.617 [1.495–1.749]
Age at diagnosis	≤60	99.00	97.00	1	<0.001	1
	60–70	98.70	96.10	1.318 [1.182–1.470]		1.153 [1.033–1.288]	0.012
	>70	96.00	90.10	3.602 [3.254–3.987]		1.823 [1.633–2.037]	<0.001
Race	Black	97.50	94.10	1	<0.001	1
	White	98.20	95	0.812 [0.735–0.897]		1.085 [0.978–1.203]	0.123
	Others	98.50	96.80	0.555 [0.446–0.691]		0.630 [0.505–0.786]	<0.001
Marital status	Married	98.50	95.70	1	<0.001	1	<0.001
	Others	96.80	92.30	1.836 [1.692–1.991]		1.313 [1.207–1.428]
AJCC stage	II	98.70	96.00	1	<0.001	1	<0.001
	III/IV	94.90	90.00	2.806 [2.589–3.043]		1.763 [1.429–2.175]
Stage T	T1/T2	98.20	95.20	1	<0.001	1	0.004
	T3/T4	97.70	93.60	1.337 [1.211–1.476]		1.316 [1.090–1.590]
Stage N	N0	98.30	95.30	1	<0.001	1	<0.001
	N1	84.00	74.00	6.929 [6.045–7.941]		1.649 [1.411–1.928]
Stage M	M0	98.70	95.70	1	<0.001	1	<0.001
	M1	49.80	34.50	35.753 [32.28–39.60]		4.176 [3.432–5.082]
PSA (ng/ml)	≤10	99.20	97.00	1	<0.001	1	<0.001
	10–20	97.40	93.40	2.512 [2.268–2.781]		1.588 [1.431–1.762]
	>20	89.00	79	9.100 [8.347–9.922]		2.936 [2.649–3.253]
Treatment	No surgery and radiation	90.90	81.80	1	<0.001	1	<0.001
	Only radiation without surgery	98.00	93.80	0.274 [0.252–0.298]		0.490 [0.446–0.537]
	Only surgery without radiation	99.70	98.50	0.062 [0.055–0.070]		0.133 [0.115–0.154]
	Both radiation and surgery	98.80	94.30	0.267 [0.214–0.332]		0.308 [0.241–0.394]