Table 4.

Multivariable Cox Regression analysis^* showing factors associated with readmission within 30 days after discharge for people admitted to the general medical or cardiology services with a principal diagnosis of HF after self-referral to the Emergency Department of the Brigham and Women’s Hospital from 2008-2017. (N=3133)

Characteristic	Hazard Ratio	95% CI	p-value
Admission to Cardiology	0.84	0.72, 0.97	0.018
Race
White	ref
Black	1.09	0.92, 1.29	0.31
Latinx	1.14	0.91, 1.42	0.27
Age
<50	ref
50-75	0.61	0.49, 0.76	<.0001
>75	0.54	0.43, 0.69	<.0001
Boston Metro Resident†	1.09	0.88, 1.35	0.43
Seen in institutional cardiology clinic in last year	1.27	1.09, 1.49	0.003
Seen by institutional PCP in last year	1.17	1.01, 1.36	0.041
HFpEF	0.81	0.70, 0.94	0.007
Comorbidity
Valvular Disease	1.24	1.07, 1.44	0.005
Psychiatric Disease	1.15	0.96, 1.38	0.14
Chronic Kidney Disease	1.36	1.15, 1.60	0.0003
Chronic Liver Disease	1.11	0.80, 1.54	0.55
Elixhauser Index	1.01	0.99, 1.02	0.33

^*Multivariable model includes admission to cardiology, race, age, Boston metro resident, whether the patient was seen in institutional cardiology clinic in last year, whether the patient was seen by institutional PCP in last year, diagnosis of HFpEF, valvular disease, psychiatric disease, chronic kidney disease, chronic liver disease, and Elixhauser Comorbidity Index.

^†Per US Census Bureau