Table 2.
| Outcome Variables Before and After Propensity-Score Matching
| Variables | All Cases (n=1737) |
Unmatched Cohort | After Propensity Score Matching | ||||
|---|---|---|---|---|---|---|---|
| WND (n=1101) |
ND (n= 636) |
P value (WND vs ND) |
WND (n= 581) |
ND (n= 581) |
P value (WND vs ND) |
||
| Ventilation time with 28 ICU days | 8 (3,16) | 7 (3,14) | 10 (5,18) | <0.001 | 8 (4,16) | 10 (4,18) | 0.058 |
| Los | 21 (12,36) | 21 (12,36) | 21 (11,35) | 0.186 | 22 (13,38) | 21 (11,36) | 0.20 |
| Iculos | 13 (7,23) | 12 (7,22) | 14 (8,25) | 0.000 | 14 (8,24) | 14 (8,25) | 0.65 |
| Death_icu_28daya | 718 (41.3%) | 405 (36.7%) | 313 (49.2%) | 0.000 | 225 (38.73%) | 273 (46.99%) | 0.004 |
| Death_time | 28 (12,28) | 22 (14,28) | 20 (10,28) | 0.000 | 22 (14,28) | 20 (11,28) | 0.006 |
Note: aDeath_icu_28day refers to the overall ICU 28-day mortality rate.