Figure 1.

Trial flow-chart. As part of the larger Best Apnea Interventions in Research trial, 169 participants were randomly assigned to conservative therapy, sham CPAP, CPAP only, or CPAP + ME. Participants in the CPAP-only and CPAP + ME arms were included in the current analyses (n = 83). Any nights of non-CPAP usage, including all nights for participants who refused CPAP set-up, were included in the data set as 0.0 hours; hence, data completeness was 100%. Primary outcome was adherence at 6 months; 12-month adherence data were included in a secondary analysis. ME = motivational enhancement.