Table 3.
Univariate Logistic Regression for Predictors of Delayed Discharge.
| Characteristic | Class | LOS 0–1 d (N = 111) | LOS 2–3 d (N = 764) | LOS >3 d (N = 158) | OR (95% CI) | P Value |
|---|---|---|---|---|---|---|
| Hypotensive events (POD 0/1)a,b | 2.32 (2.69) | 3.15 (3.24) | 3.96 (3.98) | 1.545 (1.297–1.841) | <.0001 | |
| CCI score | 0.39 (0.62) | 0.57 (0.84) | 0.87 (1.0) | 1.469 (1.254–1.721) | <.0001 | |
| Sex | Male | 63/111 (56.7%) | 295/764 (38.6%) | 38/158 (24.1%) | — | <.0001 |
| Female | 48/111 (43.2%) | 469/764 (61.4%) | 120/158 (75.9%) | 2.252 (1.672–3.03) | ||
| Race | White | 94/111 (84.7%) | 556/764 (72.8%) | 96/158 (60.8%) | 1.988 (1.458–2.703) | <.0001 |
| Nonwhite | 17/111 (15.3%) | 208/764 (27.2%) | 62/158 (39.2%) | 1.988 (1.458–2.703) | ||
| Marital status | Married | 91/111 (82.0%) | 533/764 (69.8%) | 88/158 (55.7%) | — | <.0001 |
| Not married | 20/111 (18.0%) | 231/764 (30.2%) | 70/158 (44.3%) | 2.04 (1.511–2.755) | ||
| Agea,c | 63.9 (8.9) | 65.7 (9.2) | 68.5 (8.5) | 1.38 (1.190–1.612) | <.0001 | |
| OME (mg)a,c | 101.1 (64.5) | 218.3 (138.6) | 237.1 (133.6) | 1.037 (1.026–1.049) | <.0001 | |
| Insurance | HMO/managed care | 49/111 (44.1%) | 235/762 (30.8%) | 39/158 (24.7%) | 1.171 (0.726–1.886) | <.0001 |
| Medicaid | 2/111 (1.8%) | 12/762 (1.6%) | 2/158 (1.3%) | 1.352 (0.409–4.470) | ||
| Medicare | 42/111 (37.8%) | 423/762 (55.5%) | 107/158 (67.7%) | 2.260 (1.436–3.558) | ||
| Other | 18/111 (16.2%) | 92/762 (12.1%) | 10/158 (6.3%) | — | ||
| Lab abnormalities | Low calcium | 20/111 (18.0%) | 306/764 (40.1%) | 87/158 (55.1%) | 2.413 (1.801–3.234) | <.0001 |
| High creatinine | 60/111 (54.1%) | 509/764 (66.6%) | 118/158 (74.7%) | 1.690 (1.255–2.275) | .0006 | |
| High glucose | 50/111 (45.1%) | 420/764 (55.0%) | 105/158 (66.5%) | 1.667 (1.257–2.211) | .0004 | |
| Low hemoglobin | 39/111 (35.1%) | 583/764 (76.3%) | 139/158 (88.0%) | 5.049 (3.546–7.190) | <.0001 | |
| Low sodium | 27/111 (24.3%) | 285/764 (37.3%) | 76/158 (48.1%) | 1.779 (1.334–2.372) | <.0001 | |
| Narcotic use on day 0/1 | 88/111 (79.3%) | 714/764 (93.5%) | 153/158 (96.8%) | 3.819 (2.307–6.320) | <.0001 |
LOS, length of stay; OR, odds ratio; CI, confidence interval; POD, postoperative day; CCI, Charlson Comorbidity Index; OME, oral morphine equivalents; SD, standard deviation; HMO, Health Maintenance Organization.
a
Variables presented as mean ± SD.
b
OR reported per 5 events.
c
OR reported per 10 units (years or mg as applicable).