Fig. 2

Two classes of vasoactive drug use(A) and ARDS-related risk factors at 24 h, 48 h, and throughout hospitalization in the ICU(B). Abbreviations: K = degrees of freedom; AIC = Akaike information criterion; BIC = Bayesian information criterion; aBIC = corrected Bayesian information criterion, the smaller the statistical value, the better the model fit. bLRT = likelihood ratio test (Bootstrap-based BLRT); LMR = Vuong-Lo-Mendell-Rubin test