Table 2 Covariate analysis in a Cox-proportional hazard model. Univariate analysis was performed for each covariate

0.86 [0.76–0.97]

0.014*

4.62 [1.18–18.13]

0.028*

0.81 [0.23–2.79]

0.732

3.26 [0.84–12.66]

0.088

1.01 [0.21–4.94]

0.989

3.28 [0.82–13.09]

0.092

1.10 [1.01–1.19]

0.020*

5.76 [1.15–28.85]

0.033*

0.98 [0.34–2.80]

0.966

3.26 [0.83–12.81]

0.090

1.06 [1.01–1.11]

0.013*

2.51 [0.62–10.17]

0.196

1.04 [0.95–1.14]

0.387

3.54 [0.90–13.89]

0.070