Table 2.
Non-Veterans a | Veterans a | Veterans compared with non-Veterans | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Unadjusted | Adjustment 1 b | Adjustment 2 c | ||||||||
N | % | N | % | PR (95% CI) | p Value | PR (95% CI) | p Value | PR (95% CI) | p Value | |
Medication or alcohol for sleep | 32,303 | 24.6 | 845 | 24.7 | 1.02 (0.96, 1.08) | .51 | 1.00 (0.94, 1.06) | .98 | 1.00 (0.94, 1.06) | .88 |
High risk for insomnia | 40,717 | 30.8 | 1,049 | 30.5 | 1.00 (0.96, 1.05) | .90 | 1.00 (0.95, 1.05) | .99 | 1.00 (0.95, 1.05) | .91 |
High risk for SDB | 32,990 | 24.9 | 864 | 25.1 | 1.00 (0.95, 1.06) | .92 | 1.02 (0.97, 1.08) | .41 | 1.02 (0.97, 1.08) | .46 |
High risk for insomnia and SDB | 12,540 | 9.5 | 355 | 10.3 | 1.09 (0.99, 1.19) | .10 | 1.13 (1.02, 1.24) | .02 | 1.13 (1.02, 1.24) | .02 |
Notes: CI = confidence interval; BMI = body mass index; PR = prevalence ratio; SDB = sleep disordered breathing.
a Numbers and percents reflect those from the fully adjusted model (Adjustment 2), thus sample sizes from unadjusted and Adjustment 1 models are at least as large as those reported in the table.
b Adjusted for age (continuous), race (White/non-White), education (nominal), BMI (continuous), and current smoker (no/yes).
c Adjusted for age (continuous), race (White/non-White), education (nominal), BMI (continuous), current smoker (no/yes), living with a partner (no/yes), physical activity (MET-hours per week, continuous), vasomotor symptoms (no/yes), depression (no/yes), napping at baseline (<3 times per week or 3+ times per week), and study arm (nominal).