Table 2.

Results from multiple logistic regression models for Invasive cardiac procedure (ICP), hospital death (HD), and early hospital readmission (EHR), and from the log-normal regression model for the length of stay (LoS)^§

	ICP β parameter (95% CI)	HD β parameter (95% CI)	LoS β parameter (95% CI)	EHR β parameter (95% CI)
Intercept	2.600 (2.455;2.744)	- 7.004 (-7.393; -6.616)	1.006 (0.937;1.075)	- 1.926 (-2.190;-1.662)
Main effects
Age	- 0.040 (-0.042;-0.037)	0.066 (0.061;0.071)	0.011 (0.010;0.012)	- 0.003 (-0.007;0.001)
Women vs Men	- 0.200 (-0.257;-0.144)	- 0.103 (-0.222;0.015)	0.039 (0.013;0.064)	- 0.237 (-0.360;-0.113)
ICP	-	- 0.980 (-1.152;-0.807)	0.470 (0.439;0.501)	- 0.838 (-0.964;-0.711)
Distance cardiology Center
32–64 km vs <32 km	- 0.247 (-0.323;-0.170)	- 0.132 (-0.285;0.022)	0.003 (-0.042;0.048)	0.138 (0.003;0.274)
64–105 km vs <32 km	- 0.509 (-0.603;-0.416)	0.106 (-0.062;0.273)	- 0.083 (-0.135;-0.032)	0.356 (0.207;0.505)
≥105 km vs <32 km	- 0.486 (-0.563;-0.409)	- 0.148 (-0.301;0.004)	0.040 (-0.003;0.083)	0.128 (-0.005;0.262)
Interaction terms
Women × ICP	-	0.4327 (0.181;0.685)	-	0.367 (0.151;0.583)
ICP × Distance	-	-		-
32–64 km vs <32 km			0.138 (0.069;0.207)
64–105 km vs <32 km			0.276 (0.192;0.360)
≥105 km vs <32 km			0.350 (0.280;0.419)

^§ CI: Confidence interval; A positive parameter estimate indicates an increased risk whereas a negative estimate indicates a reduced risk