Table 3. Results of the Cox regression model for the primary outcome unplanned hospital readmission or death.

Parameter	Estimate	Standard error	Hazard ratio	95% confidence interval	P value
Intervention group	-0.11	0.14	0.89	0.67–1.19	0.439
Diabetes	0.39	0.15	1.47	1.09–1.99	0.012
Heart failure	0.25	0.16	1.28	0.94–1.75	0.128
Age	0.06	0.01	1.06	1.04–1.09	<.001
Male sex	-0.01	0.16	0.99	0.73–1.35	0.976