Table 3.
Risk‐Adjusted Association between Social Factors and Readmission
| Model | Model Description | Tobacco Use | Alcohol Abuse | Drug Abuse | Depression | Housing Instability | Fall Risk | Poor Social Support | C‐Statistic | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RR% | OR (95% CI) | RR% | OR (95% CI) | RR% | OR (95% CI) | RR% | OR (95% CI) | RR% | OR (95% CI) | RR% | OR (95% CI) | RR% | OR (95% CI) | |||
| Unadjusted | seven social variables | 20.9 | 1.16* (1.10, 1.22) | 17.6 | 0.93 (0.86, 1.01) | 24.4 | 1.41* (1.31, 1.52) | 24.7 | 1.43* (1.35, 1.53) | 24.6 | 1.43* (1.19, 1.71) | 22.6 | 1.28* (1.21, 1.33) | 21.9 | 1.22* (1.15, 1.30) | 0.59 |
| Model 1 | Baseline CMS Model plus seven social variables | 19.8 | 1.08** (1.03, 1.14) | 17.9 | 0.95 (0.87, 1.05) | 22.2 | 1.25* (1.15, 1.36) | 21.4 | 1.19* (1.11, 1.27) | 25.7 | 1.52* (1.25, 1.84) | 20.2 | 1.11* (1.06, 1.17) | 20.6 | 1.13* (1.07, 1.20) | 0.65 |
| Model 2 | Baseline CMS Model plus seven social variables plus socioeconomic variables available in administrative data | 19.1 | 1.03 (0.99, 1.08) | 18.5 | 0.99 (0.91, 1.08) | 20.4 | 1.12*** (1.03, 1.21) | 20.8 | 1.15* (1.07, 1.22) | 23.4 | 1.33** (1.14, 1.57) | 19.2 | 1.04 (1.00, 1.09) | 19.9 | 1.09** (1.03, 1.15) | 0.67 |
| Model 3 | Model 2 plus socioeconomic variables available in structured EHR data | 19.1 | 1.04 (0.99, 1.08) | 18.5 | 0.99 (0.91, 1.08) | 20.4 | 1.12*** (1.04, 1.21) | 20.9 | 1.15* (1.08, 1.23) | 23.6 | 1.35** (1.15, 1.58) | 19.3 | 1.04 (1.00, 1.09) | 20.0 | 1.09** (1.03, 1.16) | 0.68 |
| Model 4 | Model 3 plus detailed risk adjustment with clinical data | 19.2 | 1.04 (1.00, 1.08) | 18.1 | 0.97 (0.89, 1.05) | 20.2 | 1.10*** (1.03, 1.18) | 20.6 | 1.14* (1.07, 1.20) | 24.5 | 1.42* (1.25, 1.61) | 19.1 | 1.03 (0.99, 1.08) | 20.0 | 1.10*** (1.04, 1.15) | 0.69 |
*p =< .001, **p =< 0.01, ***p =< 0.05.
RR %, readmission rate %.