Table 1.
30-day readmission and acute care utilization demographics and covariates.
| No-readmission (n = 655) | Readmission (n = 101) | p value | |
|---|---|---|---|
| Demographic | |||
| Age, years | |||
| Mean (±SD) | 69.8 (15.3) | 69.0 (16.3) | 0.64 |
| Male sex, n (%) | 348 (53.1) | 45 (44.6) | 0.11 |
| Race/ethnicity, n (%) | |||
| Caucasian | 304 (46.4) | 60 (59.4) | 0.02 |
| African American | 41 (6.26) | 7 (6.93) | 0.79 |
| Hispanic | 161 (24.6) | 19 (18.8) | 0.21 |
| Other race | 149 (22.8) | 15 (14.9) | 0.73 |
| Married, n (%) | 267 (40.8) | 40 (39.6) | 0.90 |
| Charlson score, mean (±SD) | 4.5 (3.1) | 6.0 (3.4) | <0.01 |
| Payer type, n (%) | |||
| Medicaid | 134 (20.5) | 21 (20.8) | 0.94 |
| Medicare | 398 (60.8) | 68 (67.3) | 0.21 |
| Commercial | 92 (14.1) | 10 (9.9) | 0.26 |
| Other payer | 31 (20.5) | 2 (1.98) | 0.21 |
| Covariates | |||
| LOS, mean (±SD) | 4.7 (5.9) | 6.3 (6.5) | <0.01 |
| Discharge disposition, n (%) | |||
| Home self-care | 413 (63.1) | 64 (63.4) | 0.95 |
| Home health | 111 (17) | 16 (15.8) | 0.78 |
| Skilled nursing | 77 (11.8) | 19 (18.8) | <0.05 |
| Other facility, non-SNF | 54 (8.24) | 2 (1.98) | 0.03 |
| Medication count, mean (±SD) | 11.5 (6.01) | 13.6 (6.4) | <0.01 |
| ⩾5 Medications, n (%) | 599 (91.5) | 98 (97) | 0.05 |
| ⩾7 Medications, n (%) | 522 (79.7) | 94 (93.1) | <0.01 |
| ⩾10 Medications, n (%) | 370 (56.5) | 70 (69.3) | 0.02 |
| MRCI, mean (±SD) | 26.3 (16) | 30.8 (15.8) | <0.01 |
| No-ACU (n = 590) | ACU (n = 166) | p value | |
| Demographic | |||
| Age, years | |||
| Mean (±SD) | 70 (15.3) | 68.2 (15.7) | 0.18 |
| Male sex, n (%) | 309 (52.4) | 84 (50.6) | 0.69 |
| Race/ethnicity, n (%) | |||
| Caucasian | 271 (45.9) | 93 (56) | 0.02 |
| African American | 39 (6.61) | 9 (5.42) | 0.57 |
| Hispanic | 143 (24.2) | 37 (22.3) | 0.60 |
| Other race/ethnicity | 137 (23.2) | 27 (16.3) | 0.05 |
| Married, n (%) | 238 (40.6) | 69 (41.6) | 0.83 |
| Charlson score, mean (±SD) | 4.45 (3.12) | 5.45 (3.4) | <0.01 |
| Payer type, n (%) | |||
| Medicaid | 110 (18.6) | 45 (27.1) | 0.02 |
| Medicare | 367 (62.2) | 99 (59.6) | 0.55 |
| Commercial | 84 (14.2) | 18 (10.8) | 0.26 |
| Other payer | 29 (4.92) | 4 (2.41) | 0.16 |
| Covariates | |||
| LOS, mean (±SD) | 4.65 (6) | 5.66 (5.95) | 0.05 |
| Discharge disposition, n (%) | |||
| Home self-care | 372 (63.1) | 105 (63.3) | 0.96 |
| Home health | 98 (16.6) | 29 (17.5) | 0.79 |
| Skilled nursing | 71 (12) | 25 (15.1) | 0.30 |
| Other facility, non-SNF | 49 (8.31) | 7 (4.22) | 0.08 |
| Medication count, mean (±SD) | 11.5 (6.05) | 12.7 (6.2) | 0.02 |
| ⩾5 Medications, n (%) | 539 (91.4) | 158 (95.2) | 0.10 |
| ⩾7 Medications, n (%) | 471 (79.8) | 145 (87.4) | 0.03 |
| ⩾10 Medications, n (%) | 332 (56.3) | 108 (65.1) | 0.04 |
| MRCI, mean (±SD) | 26.5 (15.9) | 28.2 (16.4) | 0.22 |
SD: standard deviation; LOS: length of stay; SNF: skilled nursing facility; MRCI: medication regimen complexity index; ACU: acute care utilization.