Table 2 Outcomes before and after propensity score matching
Outcomes | Before propensity score matching | After propensity score matching | Difference (95% CI) | P value | ||
|---|---|---|---|---|---|---|
ICU | HDU | ICU | HDU | |||
(n = 78,646) | (n = 124,220) | (n = 62,352) | (n = 62,352) | |||
In-hospital mortality | 8,759 (11.1) | 14,672 (11.8) | 6,696 (10.7) | 7,101 (11.4) | − 0.6 (− 1.5 to 0.2) | 0.14 |
Length of hospital stay, days | 26 ± 31 | 24 ± 24 | 25 ± 28 | 24 ± 25 | 1.1 (0.3 to 1.9) | 0.006 |
Length of ICU/HDU stay, days | 5 ± 9 | 5 ± 6 | 5 ± 9 | 5 ± 7 | − 0.1 (− 0.4 to 0.2) | 0.42 |
Total hospitalization cost, USD | 17,670 (29,246) | 12,924 (15,891) | 15,934 (23,606) | 13,751 (18,347) | 2183 (1435 to 2931) | < 0.001 |
Complications after admission | ||||||
Pneumonia | 3,199 (4.1) | 4,040 (3.3) | 2,356 (3.8) | 2,155 (3.5) | 0.3 (− 0.1 to 0.7) | 0.13 |
Stroke | 2,124 (2.7) | 2,709 (2.2) | 1,631 (2.6) | 1,382 (2.2) | 0.4 (0.1 to 0.7) | 0.003 |
Endoscopic hemostasis for GI bleeding | 417 (0.5) | 563 (0.5) | 320 (0.5) | 313 (0.5) | 0.01 (− 0.07 to 0.09) | 0.79 |
Catheter-related bloodstream infection | 111 (0.1) | 92 (0.1) | 79 (0.1) | 56 (0.1) | 0.04 (0.00 to 0.07) | 0.050 |
Clostridioides difficile infection | 223 (0.3) | 319 (0.3) | 183 (0.3) | 153 (0.2) | 0.05 (− 0.04 to 0.01) | 0.28 |