Table 2 Summary of positive airway pressure (PAP) usage in years 1 and 2, overall and by adherence group.

From: Adherence to positive airway pressure therapy and healthcare resource utilization and costs among patients with obstructive sleep apnea and obesity

PAP use

Overall n = 173,6911

Adherent n = 61,171

Intermediate n = 67,938

Non-adherent n = 44,582

P-valuea

Met CMS adherenceb (90 days), n (%)

117,992 (67.9)

61,171 (100.0)

56,821 (83.6)

0 (0.0)

<0.001

Year 1, mean (SD)

     

Hours per day

3.8 (2.8)

6.8 (1.2)

3.4 (1.8)

0.4 (0.6)

<0.001

Hours per use day

5.4 (2.0)

7.1 (1.1)

5.5 (1.2)

3.0 (1.6)

<0.001

Days per week

4.3 (2.6)

6.7 (0.4)

4.3 (1.9)

0.9 (1.1)

<0.001

Year 2, mean (SD)

     

Hours per day

3.3 (3.2)

7.0 (1.3)

2.1 (2.2)

0.1 (0.4)

<0.001

Hours per use day

6.1 (2.0)

7.3 (1.2)

5.4 (1.6)

3.1 (1.8)

<0.001

Days per week

3.5 (3.0)

6.7 (0.4)

2.6 (2.4)

0.2 (0.8)

<0.001

  1. CMS United States Centers for Medicare and Medicaid Services, PAP positive airway pressure, SD standard deviation.
  2. aP-values are based on Kruskal–Wallis (continuous) and Pearson Chi-squared (categorical) tests.
  3. bUS CMS considers a patient adherent to PAP therapy if the device is used 4 or more hours per night on 70% of nights during a consecutive 30-day period during the first 90 days of initial use.
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