Prospective randomized comparison of impedance-controlled auto-continuous positive airway pressure (APAPFOT) with constant CPAP Prospective randomized comparison of impedance-controlled auto-continuous positive airway pressure (APAPFOT) with constant CPAP Download WebWatch – Vol 1 Issue 4 The age and other factors in the evaluation of compliance with nasal continuous positive airway pressure for obstructive sleep apnea syndrome. A Cox’s proportional hazard analysis