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Table 3 Outcomes among study participants who had ARDS at mechanical ventilation onset, those who developed ARDS after mechanical ventilation onset, and those with no ARDS during their hospital stay

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

 Overall, n = 1657ARDS at mechanical ventilation onset, n = 334ARDS after mechanical ventilation onset, n = 180No ARDS, n = 1143p value
Death 90 days, n (%)810 (48.9%)187 (56.0%)99 (55.3%)524 (46.0%)< 0.01
Ventilator-free days, mean (SD)10.1 (10.7)7.7 (10.0)6.4 (8.6)11.3 (10.9)< 0.001
ICU-free days, mean (SD)7.3 (8.9)5.5 (8.1)4.0 (6.6)8.4 (9.2)< 0.001
Hospital-free days, mean (SD)11.1 (16.6)9.8 (16.1)7.3 (13.8)12.1 (17.1)< 0.001