Table 5.

Adjusted predictors of prediabetes via Cox-Regression correcting for baseline BMI, age, race, sex, change in BMI over time, CPAP use and depression.

Baseline Characteristic	Hazard Ratio (95% CI)	P
ESS	1.013 (0.968–1.061)	.56
Supine apnea index, events/h	1.376 (0.612–3.092)	.44
Respiratory arousal index, events/h	1.004 (0.997–1.012)	.26
Spontaneous arousal index, events/h	0.990 (0.976–1.004)	.17
Total arousal index, events/h	1.001 (0.995–1.007)	.77
Snoring index, events/h	1.115 (0.644–1.928)	.70
Obstructive apnea index, events/h	1.036 (0.611–1.758)	.89
Central apnea index, events/h	1.014 (0.967–1.063)	.56
Hypopnea index, events/h	1.005 (0.991–1.019)	.51
Cheyne-Strokes pattern	2.476 (0.850–7.217)	.10
PLM index, events/h	1.106 (0.672–1.818)	.69
Desaturation > 4% index, events/h	1.005 (0.996–1.013)	.28
Oxygen desaturation nadir	0.984 (0.957–1.012)	.26
T = 60–89%_INDEX, % of TST	1.005 (0.994–1.016)	.35
T = 90–99%_INDEX, % of TST	0.994 (0.983–1.004)	.23
Mean nocturnal oxygen saturation	0.912 (0.854–0.974)	< .01
Oxygen at night, liters	—	—
Chronic oxygen requirement	1.024 (0.244–4.302)	.97
Apnea-hypopnea index, events/h	1.001 (0.994–1.009)	.77

BMI = body mass index, CPAP = continuous positive airway pressure, ESS = Epworth Sleepiness Scale, PLM = periodic limb movement.