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Table 1 Studies comparing self-reported vs. machine-documented CPAP compliance

From: Trends in CPAP adherence over twenty years of data collection: a flattened curve

1st author (year) Outcome Subjects (N) Self-report CPAP device Absolute difference Percent difference
Roecklein (2010) [79] Hours per night at 3 months 28 4.68 2.35 2.33 49.8 %
Kribbs (1993) [83] Hours per night over time 35 4.9 3.7 1.2 24.5 %
   311    Mean = 35.4 %
      Weighted mean = 32.7 %