Figure 1.

Average air leak levels adjusted for pressure level (Leak_avg/P_avg) derived from the auto-titrating positive airway pressure (autoPAP) device downloaded at the end of one week of therapy are shown for adherent (solid column) and non-adherent patients (open columns; left panel). On the right panel, 90th percentile air leak levels adjusted for pressure level (Leak₉₀/P₉₀) derived from the autoPAP device download at the end of one week of therapy are shown for adherent (slope hatched column) and non-adherent patients (cross-hatched column). Average air leak levels adjusted for pressure in adherent patients were lower than those in non-adherent patients (P < 0.0001). Similarly, 90th percentile air leak levels adjusted for pressure were lower in adherent patients than in non-adherent patients (P = 0.001). § P < 0.01; L/min = liters per minute.