Table 3 Age-adjusted associations between 30-day readmission and social risk factors in chronic obstructive pulmonary disease, pneumonia, acute myocardial infarction, heart failure, and stroke ^a,b

 Female

0.86 (0.85–0.87)*

0.92 (0.91–0.93)*

0.965 (0.95–0.98)*

0.98 (0.97–0.99)*

1.16 (1.14–1.18)*

1.10 (1.09–1.12)*

0.91 (0.90–0.92)*

0.91 (0.90–0.91)*

1.04 (1.02–1.07)*

0.90 (0.89–0.91)*

 Male

1.17 (1.16–1.18)*

1.09 (1.08–1.10)*

1.037 (1.02–1.05)*

1.02 (1.02–1.03)*

0.86 (0.84–0.0.88)*

0.91 (0.90–0.92)*

1.10 (1.09–1.11)*

1.10 (1.10–1.11)*

0.96 (0.94–0.98)*

1.11 (1.10–1.13)*

 Urban

1.13 (1.11–1.15)*

1.04 (1.02–1.05)*

1.041 (1.02–1.07)*

0.99 (0.98–1.01)

0.97 (0.93–1.01)

0.95 (0.92–0.97)*

1.08 (1.06–1.10)*

1.03 (1.02–1.04)*

1.04 (0.99–1.09)

1.06 (1.03–1.09)*

 Rural

0.88 (0.87–0.90)*

0.97 (0.95–0.98)*

0.961 (0.94–0.98)*

1.01 (0.99–1.02)

1.04 (0.99–1.08)

1.06 (1.03–1.09)*

0.92 (0.91–0.94)*

0.97 (0.96–0.98)*

0.96 (0.92–1.01)

0.95 (0.92–0.97)*

  ≥ $64,000

1.0

(Reference)

1.0

(Reference)

1.0

(Reference)

1.0

(Reference)

1.0

(Reference)

 $48,000–$63,999

0.99 (0.96–1.01)

1.00 (0.98–1.01)

1.018 (0.99–1.04)

1.02 (1.01–1.03)*

1.01 (0.98–1.04)

1.01 (0.99–1.03)

0.96 (0.95–0.98)*

1.01 (1.00–1.03)*

1.02 (0.98–1.06)

1.00 (0.98–1.02)

 $38,000–$47,999

0.98 (0.96–1.00)

1.01 (1.00–1.03)

1.030 (1.01–1.05)*

1.05 (1.04–1.06)*

1.03 (1.00–1.07)*

1.04 (1.02–1.06)*

0.96 (0.94–0.98)*

1.04 (1.02–1.05)*

0.98 (0.95–1.02)

1.01 (0.99–1.03)

  ≤ $37,999

1.01 (0.99–1.03)

1.06 (1.05–1.08)*

1.085 (1.06–1.11)*

1.12 (1.11–1.14)*

1.07 (1.04–1.10)*

1.07 (1.05–1.09)*

0.96 (0.95–0.98)*

1.09 (1.08–1.10)*

0.95 (0.92–0.99)*

1.06 (1.04–1.09)*