CPAP TOLERANCE SCORES ARE EFFECTIVE IN PREDICTING CPAP USAGE IN THE SHORT-TERM

Document Type

Conference Proceeding

Publication Date

5-1-2024

Publication Title

Sleep

Abstract

Introduction: Our group previously presented work demonstrating the value of a 10-question CPAP tolerance survey in predicting therapy compliance at 30-90 days after CPAP prescription. We conducted a follow-up survey in the same cohort 6 months after CPAP prescription to examine the utility of the survey in predicting CPAP compliance. Methods: This was a prospective study at a single tertiary care hospital. Patients diagnosed with clinically significant OSA (moderate disease, mild disease with symptoms, or mild disease with a comorbidity) between January-March 2023 that had initiated PAP therapy and attended a follow-up visit were provided a 10-question survey regarding symptoms and attitudes related to CPAP at their first follow up visit and again 6-9 months later. Data collected used for statistical analysis included: tolerance survey scores, CPAP usage, attendance of 6-month follow-up visit, demographics, OSA severity, and Epworth Sleepiness Scale (ESS) scores. Univariate and multivariate regression were used to analyze relationships between survey responses and CPAP usage data. Adherence was defined as using PAP therapy for ≥ 4hrs for ≥ 70% of nights in a 30-day period. Results: Of the 105 respondents to the initial survey, 56 (53.3%) responded to the 6-month survey. Tolerance scores at 6-months correlated with % adherence at 6-months (p = 0.02) and minutes of CPAP usage at 6-months (p = 0.04). Each point of increase in 6-month survey scores was associated with an additional 2.7 minutes of use, on average. Initial tolerance survey scores did not significantly correlate with compliance 6-months later (p = 0.17). Initial tolerance survey scores did, however, correlate with tolerance survey scores 6 -months later (ß = 0.77, p < 0.001) and there was no significant difference between initial tolerance survey scores and scores at 6-months (mean difference -2.81, p = 0.11). Stepwise regression models showed minimized error when age, ESS at first follow-up, OSA severity and 6-month tolerance scores were used as covariates for an outcome of minutes of CPAP usage at 6-months. Conclusion: CPAP tolerance surveys have utility in estimating CPAP compliance in the short-term but may not capture important changes in patient attitudes that allow for the prediction of long-term CPAP compliance.

Volume

47

First Page

A240

Find It @ Sladen

Share

COinS