MOESM6 of Is immunosuppression status a risk factor for noninvasive ventilation failure in patients with acute hypoxemic respiratory failure? A post hoc matched analysis CoudroyRĂŠmi PhamTĂ i BoissierFlorence RobertRenĂŠ FratJean-Pierre ThilleArnaud 2019 Additional file 6: Table S4. Univariate analysis of variables associated with intubation in the propensity score matched cohort.