Table 2.

Results from the proposed method with no time varying covariates and three Cox proportional hazards models fit to the current data alone (Curr PH), historical data alone (Hist PH), and the pooled data (Pool PH). Covariates above the line are associated with β, while those below the line are associated with γ.

	Proposed	Curr PH	Hist PH	Pool PH
	Hazard Ratio (95% CI)
Race
White (ref)	–	–	–	–
Black	0.58(0.27, 1.13)	0.52(0.24, 1.11)	1.39(0.49, 3.96)	0.77(0.43, 1.38)
Other	0.83(0.27, 2.15)	1.02(0.36, 2.88)	0.46(0.06, 3.50)	0.85(0.34, 2.14)
Age
20–64 (ref)	–	–	–	–
65–74	1.21(0.67, 2.13)	1.08(0.59, 1.98)	1.87(0.66, 5.33)	1.32(0.80, 2.19)
≥75	2.22(1.21, 3.98)	1.97(1.05, 3.69)	3.62(1.37, 9.54)	2.55(1.56, 4.18)
Cause of disease
Other (ref)	–	–	–	–
Diabetes	1.32(0.73, 2.51)	1.32(0.65, 2.68)	1.17(0.43, 3.16)	1.23(0.71, 2.13)
Hypertension	0.86(0.44, 1.70)	0.84(0.39, 1.84)	0.96(0.36, 2.55)	0.89(0.50, 1.57)
Dialysis duration
<2 yrs	–	–	–	–
2–5 yrs	1.29(0.78, 2.12)	1.31(0.77, 2.23)	1.18(0.56, 2.48)	1.28(0.84, 1.94)
6–10 yrs	1.81(0.81, 3.79)	1.90(0.87, 4.15)	2.19(0.21, 22.7)	1.75(0.85, 3.59)
≥11 yrs	1.48(0.30, 5.09)	1.37(0.31, 6.09)	3.61(0.30, 42.9)	2.21(0.66, 7.41)
Stent Type
BMS	–	–	–	–
DES	0.82(0.51, 1.33)	0.83(0.50, 1.36)	–	0.72(0.48, 1.08)