Table 2 Cox regression analysis of driving pressure (∆P) associated with 60-day mortality in ARDS patients

Day1 < 14 and Day3 < 14

(low ∆P)

1.00 (ref.)

1.00 (ref.)

Day1 ≥ 14 and Day3 < 14

(Decrement)

1.07 (0.53–2.13)

0.72 (0.31–1.68)

[Day1 ≥ 14 and Day3 ≥ 14

(High ∆P)

1.59 (1.02–2.48)

1.02 (0.51–2.05)

Day1 < 14 and Day3 ≥ 14 (Increment)

2.10 (1.21–3.64)

1.96 (1.11–3.44)