Table 1.

Baseline characteristics by sleep disordered breathing status (N=298)

Characteristic, mean ± SD or N (%)	No SDB (n= 193)	Prevalent SDB (n=105)	p-value
Age, years	82.1 ± 3.2	82.6 ± 3.1	0.24
White	173 (90)	96.0 (91)	0.62
Education >high school	60 (31)	30 (29)	0.65
Body mass index, kg/m2	27.9 ± 4.8	28.7 ± 5.3	0.20
Prevalent diabetes	19 (10)	17 (16)	0.11
Prevalent hypertension	116 (60)	69 (66)	0.34
History of stroke	25 (13)	11 (11)	0.53
High number of depressive symptoms	23 (12)	9 (9)	0.37
Current smokinga	5 (100)	0 (0)	0.17
Current Medication use
Antidepressants	16 (8)	8 (8)	0.84
Benzodiazepines	14 (7)	9 (9)	0.68
Non-benzodiazepine anxiolytics	5 (3)	2 (2)	0.71
Mini-Mental State Examination	24.9 (1.2)	25.1 (1.1)	0.22
Trails B	130.1 (54.8)	122.9 (52.1)	0.48

^aFisher’s exact test