TABLE 1.

CHARACTERISTICS OF PARTICIPANTS INCLUDED IN THE CROSS-SECTIONAL ANALYSIS GROUPED BY THE APNEA–HYPOPNEA INDEX

	Baseline AHI
Characteristics	< 5 (n = 1,121; 76%)	⩾ 5 to < 20 (n = 255; 17%)	⩾ 20 (n = 99; 7%)	Entire Group (n = 1,475)
Age, yr ± SD	47 ± 8	50 ± 8	50 ± 9	47 ± 8
Male sex, no. (%)	568 (51)	166 (65)	75 (76)	809 (55)
Body mass index, kg/m2 ± SD	29 ± 6	33 ± 7	37 ± 8	30 ± 7
Hypertension, no. (%)	302 (27)	107 (42)	67 (68)	476 (32)
History of diabetes, no. (%)	25 (2)	12 (5)	10 (10)	47 (3)
Alcoholic drinks/wk, no. ± SD	4 ± 6	4 ± 6	4 ± 7	4 ± 6
Current cigarette smoker, no. (%)	209 (19)	38 (15)	18 (18)	265 (18)

Definition of abbreviation: AHI = apnea–hypopnea index.