Table 4.
Univariate and multivariable analyses: after versus before phase comparisons of outcomes.
| Outcome | Univariate (unadjusted) comparisons
|
PU | Multivariable (adjusted) comparisons
|
PM | ||
|---|---|---|---|---|---|---|
| Overall (n = 3205) | Before (n = 1637) | After (n = 1568) | After vs. Before | |||
| Inpatient mortality, n (%) | 428 (11) | 226 (12) | 202 (10) | 0.12a | 0.62 (0.39, 0.99)c | 0.046 |
| ICU LOS (days) | 0 (0;3) | 0 (0;5) | 0 (0;3) | 0.38b | 1.95 vs. 2.13d | <0.001 |
| Hospital LOS (days) | 7 (4;16) | 8 (4;17) | 7 (4;15) | 0.004b | 9.92 vs. 11.74d | <0.0001 |
| Mechanical ventilation use, n (%) | 371 (9) | 214 (11) | 157 (8) | <0.001a | 0.70 (0.54, 0.91)c | 0.007 |
| Vasopressor use, n (%) | 1166 (30) | 588 (30) | 578 (29) | 0.34a | 0.89 (0.75, 1.06) | 0.181 |
| Charges in USD | 62,304 (31,648;143,472) | 64,041 (30,739;148,684) | 60,849 (32,631;137,317) | 0.52b | 87,562 vs. 80,402d | 0.036 |
Note: Data are median (25th p;75th p) unless otherwise specified; 25th p = 25th percentile; 75th p = 75th percentile.
PU = p-value from univariate analysis; PM = p-value from multivariable analysis; USD = United States dollars.
a
Pearson’s Chi-square test
b
Wilcoxon rank-sum test.
c
OR (95% CI).
d
Adjusted means.