Table 3 Comparative analysis of the primary and secondary study end-points in patients of the PEA and Control groups a,b
|  | PEA group (n = 89) | Control group (n = 89) | p-value |
|---|---|---|---|
Primary end-point | |||
 PLOS (days) | 9.04 ± 3.08 | 10.09 ± 3.32 | 0.031 |
Secondary end-point | |||
 Mortality within 90 days (%) | 1 (1.1) | 1 (1.1) | 1.000 |
 Incidence of early discharge | 41 (41.6) | 24 (27) | 0.009 |
 Duration of ICU stay (days) | 2.98 ± 1.40 | 3.10 ± 1.50 | 0.570 |
 Time of drainage tube retention (days) | 3.82 ± 0.92 | 3.89 ± 0.82 | 0.648 |
 Time of first bowel movement (days) | 3.18 ± 1.23 | 3.97 ± 1.26 | <0.001 |
 Time of urinary catheter retention (days) | 3.00 ± 1.02 | 3.22 ± 0.88 | 0.129 |
 Incidence of acute kidney injury (%) | 6 (6.7) | 6 (6.7) | 1.000 |
 Number of patients with renal-replacement therapy | 0 | 1 (1.1) | 0.323 |
 Incidence of pulmonary atelectasis (%) | 11 (12.4) | 17 (19.1) | 0.174 |
 Incidence of pulmonary infection (%) | 11 (12.4) | 13 (14.6) | 0.613 |