Table 3. Difference in CPAP compliers (use of CPAP for > 4 hours/night) and CPAP non-compliers (use of CPAP for < 4 hours/night).

Variables	CPAP compliers n = 274	CPAP non-compliers n = 188	p-value
Age, years	49.6 ± 12.8	47.4 ± 13.4	0.081
AHI pre-CPAP	51.1 ± 33.6	44.9 ± 28.7	0.041
AHI when on CPAP	9.4 ± 13.3	5.3 ± 4.5	0.315
Oxygen desaturation events, n	125.1 ± 150.1	94.0 ± 119.1	0.022
ESS	10.6 ± 5.6	11.3 ± 4.9	0.295

Data presented as mean±standard deviation.

CPAP: continuous positive airway pressure; AHI: apnea/hypopnea index; ESS: Epworth Sleepiness Scale.