Table 3

 Comparison of patients with obstructive sleep apnoea with good (⩾90%) and moderate to bad compliance (<90%)

Usage ⩾90% n = 14Usage <90% n = 9All patients n = 23p Value
AHI, Apnoea–Hypopnoea Index; AHITh, AHI with sleep apnoea therapy; BMI, Body Mass Index; SNAP, sensory nerve action potential.
Paired comparison refers to a comparison of pretreatment and post-treatment SNAP amplitudes within each compliance group.
Values in parentheses are SD.
Age (years)53.9 (12.9)56.3 (9.7)54.8 (11.1)NS
BMI (kg/m2)32.4 (5.5)30.3 (3.8)31.6 (4.9)NS
AHI35.4 (23.3)33.6 (24.3)34.7 (23.2)NS
AHITh3.2 (2.5)4.4 (2.2)3.7 (2.4)NS
Usage (%)95.8 (3.6)62.7 (27.8)82.9 (23.7)<0.001
SNAP (μV)
    Pretreatment5.9 (4.1)6.8 (2.7)6.3 (3.6)NS
    Post-treatment9.9 (6.4)7.2 (3.0)8.9 (5.2)NS
    Difference4.0 (3.0)0.4 (1.5)2.6 (3.1)<0.01
    Paired comparisonp<0.001NSp<0.001