Table 5.

Multivariate Linear Regression Models: Tonsil Volume & OSA Measures

OSA Measure	Adjusted* Beta Coefficient	95% CI	P-value
Apnea-Hypopnea Index	−0.2	(−2.2, 1.9)	0.89
Apnea Index	1.2	(−1.3, 3.8)	0.34
Oxyhemoglobin Desaturation Index	1.5	(−2.4, 5.4)	0.41
Oxyhemoglobin Nadir	−0.2	(−1.4, 1.0)	0.76
Epworth Sleepiness Scale	0.4	(−0.2, 1.0)	0.17

CI = Confidence Interval.

^*Adjusted for age, sex, body mass index, smoking status, lingual tonsil volume, and other concurrent multi-level surgery.