Table 2.

Associations between discharge heart rate groups and 1-year clinical outcomes in the entire cohort.

Outcomes	Event rate (%)	Unadjusted HRs (95% CI)	P-value	Adjusted HRs (95% CI)	P value
Composite outcome of all-cause death and HF readmission (primary outcome)
<65 bpm	53.0	1.39 (1.12–1.72)	0.003	1.32 (1.05–1.68)	0.020
65–85 bpm	42.5	1.00 (reference)	NA	1.00 (reference)	NA
≥86 bpm	49.8	1.34 (1.11–1.62)	0.002	1.34 (1.07–1.67)	0.009
All-cause death∗
<65 bpm	19.1	0.98 (0.65, 1.47)	0.924	0.76 (0.50, 1.15)	0.191
65–85 bpm	16.2	1.00 (reference)	NA	1.00 (reference)	NA
≥86 bpm	20.8	1.35 (0.98, 1.87)	0.067	1.14 (0.82, 1.60)	0.433
HF readmission
<65 bpm	40.9	1.28 (1.02–1.61)	0.033	1.14 (0.88–1.46)	0.327
65–85 bpm	34.0	1.00 (reference)	NA	1.00 (reference)	NA
≥86 bpm	36.3	1.14 (0.92–1.41)	0.232	1.16 (0.91–1.47)	0.238
Composite outcome of all-cause death and all-cause readmission
<65 bpm	57.7	1.29 (1.06–1.56)	0.010	1.25 (1.02–1.54)	0.034
65–85 bpm	49.4	1.00 (reference)	NA	1.00 (reference)	NA
≥86 bpm	49.8	1.17 (0.97–1.40)	0.093	1.23 (1.01–1.49)	0.044

Proportional hazards assumptions were satisfied for the primary outcome, HF readmission, and composite outcome of all-cause death and all-cause readmission, but not for all-cause death. ^∗HRs for all-cause death pertain to a 250-day follow-up period; all other HRs are based on the entirety of 1-year follow-up. Bpm: Beats per minute; CI: Confidence interval; HR: Hazard ratio; HF: Heart failure.