Table 4.
Propensity Score-Weighted Linear Regression Models on Hospital Cost and Length of Stay
| R2=75.4% | R2=33.18% | |||
|---|---|---|---|---|
| Hospital Cost ($) | Length of Stay (days) | |||
|
|
|
|||
| Predictors |
Estimate
(SE) |
p-value |
Estimate
(SE) |
p-value |
| Age (years) | 65 (52) | 0.2140 | 0.05 (0.05) | 0.3190 |
| Male Gender (vs. Female) | 460 (539) | 0.3947 | 0.93 (0.49) | 0.0562 |
| African-American Race( vs. Other) | 28 (925) | 0.9759 | −1.10 (0.83) | 0.1860 |
| General Anesthesia (vs. Regional) | 25 (457) | 0.9557 | 0.19 (0.41) | 0.6438 |
| Weekend Admission ( vs. Weekday) | 429 (527) | 0.4159 | −1.27 (0.47) | 0.00 75* |
| Medicine Admitting Service ( vs. Surgery) | −1128 (549) | 0.040 7* |
0.36 (0.56) | 0.5205 |
| Cardiovascular Disease (Yes vs. No) | 410 (504) | 0.4161 | 0.75 (0.45) | 0.0974 |
| COPD (Yes vs. No) | 921 (521) | 0.0850 | −0.72 (0.47) | 0.1231 |
| Dementia (Yes vs. No) | 645 (708) | 0.3630 | −0.88 (0.64) | 0.1710 |
| Cancer (Yes vs. No) | 2290 (1086) | 0.035 8* |
2.46 (0.97) | 0.01 16* |
| Diabetes (Yes vs. No) | −563 (582) | 0.3339 | 0.85 (0.52) | 0.1036 |
| ICU (Yes vs. No) | 4389 (655) | <.000 1* |
2.95 (0.56) | <.00 01* |
| Inhospital Mortality (Yes vs. No) | 2873 (1368) | 0.036 5* |
−0.32 (1.23) | 0.7947 |
| Surgery Day Delay (hours) (2-3 vs. 0-1) | NA | NA | 6.87 (1.04) | <.00 01* |
| (>3 vs. 0-1) | NA | NA | 1.52 (0.63) | 0.01 68* |
| Length of Stay (day) | 1360 (61) | <.000 1* |
NA | NA |
*
Significant differences among subgroups, p-value<0.05