Table 4.

Results from multivariate interval Cox regression models for overall population using propensity scores and center stratification

Hazards Ratio (95% Confidence Interval)
Covariate1 to 90 d91 to 180 d181 to 270 d271 to 365 d
Age1.04 (1.03 to 1.05)1.02 (1.00 to 1.05)1.05 (1.02 to 1.07)1.02 (0.99 to 1.06)
Male gender1.04 (0.89 to 1.21)0.94 (0.71 to 1.25)0.93 (0.67 to 1.28)0.87 (0.59 to 1.30)
Black race0.79 (0.62 to 1.01)0.65 (0.41 to 1.01)0.82 (0.51 to 1.33)0.99 (0.56 to 1.75)
Other race0.65 (0.40 to 1.04)1.35 (0.71 to 2.54)0.68 (0.24 to 1.90)1.15 (0.44 to 2.98)
Lower socio-economic status0.92 (0.77 to 1.09)1.11 (0.81 to 1.51)0.89 (0.62 to 1.29)0.79 (0.50 to 1.25)
Hypertension0.65 (0.54 to 0.78)0.77 (0.53 to 1.12)0.61 (0.40 to 0.94)0.48 (0.29 to 0.79)
Diabetes0.95 (0.81 to 1.11)1.35 (1.01 to 1.82)1.31 (0.94 to 1.84)1.17 (0.78 to 1.76)
Congestive heart failure2.01 (1.65 to 2.45)1.56 (1.11 to 2.19)1.55 (1.06 to 2.27)1.70 (1.08 to 2.67)
Coronary artery disease1.15 (0.94 to 1.40)1.01 (0.70 to 1.44)1.12 (0.75 to 1.68)1.57 (0.94 to 2.64)
Malignancy1.14 (0.96 to 1.34)1.44 (1.06 to 1.96)0.94 (0.64 to 1.36)1.34 (0.87 to 2.05)
Cerebrovascular disease1.22 (1.03 to 1.44)1.03 (0.75 to 1.42)1.36 (0.95 to 1.96)1.19 (0.75 to 1.89)
Peripheral vascular disease1.44 (1.21 to 1.71)1.11 (0.78 to 1.58)1.06 (0.72 to 1.58)1.26 (0.78 to 2.04)
Late referral1.56 (1.34 to 1.81)1.28 (0.94 to 1.73)0.94 (0.65 to 1.35)1.32 (0.87 to 1.99)
Peritoneal dialysis1.16 (0.96 to 1.42)1.03 (0.71 to 1.51)1.45 (0.96 to 2.18)1.52 (0.94 to 2.45)