Risk factors associated with all-cause 30-day ER/hospital readmissions
| Covariate | OR | 95% CI based on robust SEs | p>|z| |
|---|---|---|---|
| Demographics | |||
| Age | |||
| 6–17 | 1.416 | (0.690 to 2.908) | 0.343 |
| 18–24 | 1.333 | (0.778 to 2.281) | 0.295 |
| 25–34 | 2.334 | (1.629 to 3.346) | <0.001 |
| 35–44 | 1.966 | (1.459 to 2.650) | <0.001 |
| 45–54 | 1.443 | (1.109 to 1.878) | 0.006 |
| 55–64 | 1.171 | (0.926 to 1.482) | 0.188 |
| 65–74 | 1 | – | – |
| 75 or older | 1.103 | (0.884 to 1.377) | 0.384 |
| Male gender (vs female) | 1.138 | (0.979 to 1.324) | 0.092 |
| African-American (vs all other races) | 1.427 | (1.083 to 1.878) | 0.011 |
| Type 2 diabetes (vs type 1 diabetes) | 1.179 | (0.933 to 1.489) | 0.168 |
| African-American race×type 2 diabetes vs type 1 diabetes (interaction term) | 0.770 | (0.555 to 1.068) | 0.117 |
| Medicaid insurance status (vs else) | 1.266 | (1.018 to 1.574) | 0.034 |
| Hospital//NH/LTC/hospice exposure within 90 days | 1.984 | (1.678 to 2.345) | <0.001 |
| Comorbid conditions | |||
| Cerebrovascular disease | 2.004 | (1.253 to 3.206) | 0.004 |
| Cerebrovascular disease×type 2 diabetes vs type 1 diabetes (interaction term) | 0.549 | (0.322 to 0.935) | 0.027 |
| Secondary malignancies | 1.684 | (0.999 to 2.839) | 0.050 |
| Chronic obstructive pulmonary disease and bronchiectasis | 1.482 | (1.218 to 1.803) | <0.001 |
| Mood disorders | 1.349 | (1.117 to 1.629) | 0.002 |
| Cardiac dysrhythmias, any | 1.286 | (1.068 to 1.550) | 0.008 |
| Substance-related disorders | 1.263 | (0.962 to 1.657) | 0.092 |
| Hypertension | 1.236 | (1.009 to 1.513) | 0.040 |
| Congestive heart failure | 1.231 | (1.018 to 1.488) | 0.032 |
| Chronic renal failure | 1.194 | (1.009 to 1.414) | 0.039 |
| Obesity | 0.822 | (0.663 to 1.020) | 0.075 |
| Acuity | |||
| ICU exposure within 48 h after admission | 1.399 | (0.976 to 2.007) | 0.068 |
ER, emergency room; ICU, intensive care unit; LTC, long-term care exposure; NH, nursing home.