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Table 4 Regression results from analyses looking at differences in outcomes (death at 90 days, ventilator days, ICU-free days, and hospital-free days) by ARDS status

From: Risk factors for the development of acute respiratory distress syndrome in mechanically ventilated adults in Peru: a multicenter observational study

 ARDS at mechanical ventilation onset vs never developed ARDSARDS after mechanical ventilation onset vs never developed ARDSARDS after mechanical ventilation onset vs ARDS at mechanical ventilation onset
Odds ratio of death at 90 days (95% CI)1.61 (1.21, 2.14)1.54 (1.07, 2.20)0.95 (0.63, 1.45)
Mean difference in ventilator-free days (95% CI)− 3.82 (− 5.19, − 2.44)− 5.57 (− 7.32, − 3.82)− 1.75 (− 3.78, 0.28)
Mean difference in ICU-free days (95% CI)− 2.95 (− 4.09, − 1.81)− 4.99 (− 6.43, − 3.54)− 2.04 (− 3.72, − 036)
Mean difference in hospital-free days (95% CI)− 3.04 (− 5.21, − 0.87)− 5.95 (− 8.71, − 3.20)− 3.05 (− 6.03, − 0.08)