Table 3.
Mortality and number of IUCFDs in the propensity-matched groups analyses
| Variables | Unmatched group | Matched group | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| non-PMX-HP (n = 1201) | PMX-HP (n = 522) | OR | Difference | 95% CI | P value | non-PMX-HP (n = 262) | PMX-HP (n = 262) | OR | Difference | 95% CI | P value | |
| All-cause hospital mortality, n (%) | 439 (36.6) | 198 (37.9) | 1.061 | (0.858–1.312) | 0.585 | 108 (41.2) | 86 (32.8) | 0.681 | (0.470–0.987) | 0.042 | ||
| ICU mortality, n (%) | 268 (22.3) | 128 (24.5) | 1.131 | (0.889–1.440) | 0.317 | 64 (24.4) | 57 (21.8) | 0.844 | (0.548–1.300) | 0.443 | ||
| 28 ICUFDs (days) | 16 (0–23) | 15 (0–21) | 0.0 | (0.0–0.0) | 0.255 | 14 (0–22) | 18 (0–22) | 1.5 | (0.0–3.5) | 0.045 | ||
Data are presented as median (first quartile to third quartile) or number (percentage)
In the unmatched group, categorical variables were compared by logistic regressions, and continuous variables were compared by Wilcoxon tests and Hodges-Lehmann estimates were presented for difference and 95% CI. In the matched group, all-cause hospital mortality and ICU mortality were analyzed by conditional logistic regression including PMX-DHP as a covariate and matched-set as a stratum, and ICUFDs were analyzed by signed rank test and Hodges-Lehmann estimate was presented for difference and 95% CI
CI confidence interval, ICU intensive care unit, ICUFDs ICU-free days, OR odds ratio, PMX-HP polymyxin B hemoperfusion