Table 3.

Associations between collapsibility measures and treatment efficacy (median [95% CI]).

	Vpassive	Vmin	Event depth	Fraction of hypopneas	Apnea Index	Apnea-hypopnea index
Oral appliance	−2.1 [−15.9 to 11.7]	10.1 [−3.0 to 23.2]	−15.0* [−28.1 to −1.9]	13.9* [0.3 to 27.5]	−15.4* [−29.6 to −1.1]	−0.2 [−13.9 to 13.5]
Ato-oxy	6.2 [−19.8 to 32.1]	32.5** [13.1 to 51.8]	−27.6* [−49.7 to −5.5]	33.0** [13.9 to 52.0]	−31.2** [−51.1 to −11.3]	−19.6 [−43.5 to 4.3]

Beta coefficients represents the % reduction in apnea-hypopnea index per 2SD change in collapsibility, after adjusting for fraction of sleep time in non-supine position. Each entry represents a single bivariate regression model result.

*p < .05; **p < 0.01.