Table 5. Association of CPAP compliance (< / > 4 hours/night) with age, gender, AHI, ESS, and comorbidities.

Variables	χ2	p-value
Age, years	0.187	0.693
Gender (male)	1.317	0.518
AHI pre-CPAP	0.510	0.537
ESS	0.128	0.809
Comorbidity	1.104	0.310

CPAP: continuous positive airway pressure; AHI: apnea/hypopnea index; ESS: Epworth sleepiness scale.