Table 5. Univariate and multivariate analysis for evaluating marital status on CSS according to different age.

Variables	5-year CSS	Univariate analysis		Multivariate analysis
		Log rank Χ2	P value	HR	95% CI	P value
<60y
Marital status		116.50	<0.001
Married	85.60%			Reference
Divorced/Separated	80.80%			1.18	1.09-1.27	<0.001
Widowed	81.80%			1.22	1.03-1.46	0.025
Single	82.10%			1.14	1.07-1.22	<0.001
60-70y
Marital status		54.83	<0.001
Married	82.20%			Reference
Divorced/Separated	78.30%			1.17	1.08-1.27	<0.001
Widowed	79.40%			1.21	1.08-1.34	0.001
Single	79.80%			1.13	1.03-1.23	0.006
70-80y
Marital status		100.93	<0.001
Married	80.90%			Reference
Divorced/Separated	73.90%			1.23	1.11-1.37	<0.001
Widowed	75.70%			1.24	1.14-1.35	<0.001
Single	77.00%			1.15	1.03-1.28	0.013
>80y
Marital status		101.93	<0.001
Married	67.70%			Reference
Divorced/Separated	59.30%			1.25	1.08-1.45	0.003
Widowed	58.80%			1.16	1.08-1.26	<0.001
Single	62.10%			1.07	0.93-1.23	0.328