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. Primary outcome between open ICU and closed ICU.
| Open ICU | Closed ICU | P value | |
| Hospital mortality by univariate analysis (n = 1018)no/total (%) | 104/450 (23.1) | 142/568 (25.0) | .48 |
| Hospital mortality by Multilevel logistic regression analysis (n = 846)Odds ratio (95% confidence interval) | 1.00 | 0.83 (0.52–1.32) | .43 |
| Hospital mortality by propensity score matching analysis (n = 538)no/total (%) | 69/269 (25.7) | 57/269 (21.2) | .22 |
