| Age |
73.4 |
6.89 |
61–90 |
|
| Years of education |
14.44 |
3.07 |
8–23 |
|
| Marital status |
|
|
|
|
| Married |
|
|
|
23.1 |
| Widowed |
|
|
|
55.1 |
| Divorced |
|
|
|
15.4 |
| Never married |
|
|
|
3.8 |
| Median pretax family income, $ |
25,000 |
16,500 |
6,000–80,000 |
|
| Waist/hip ratio |
0.84 |
0.08 |
0.67–1.06 |
|
| No. of medications |
3.78 |
1.33 |
3–13 |
|
| No. of chronic health conditions |
2.14 |
1.30 |
0–5 |
|
| Drinking history |
|
|
|
40.8 |
| Smoking history |
|
|
|
46.2 |
| Total time in bed, min |
475.96 |
64.70 |
295.33–640.33 |
|
| Total sleep duration, min |
408.64 |
60.11 |
270–566 |
|
| Latency to sleep onset, min |
22.19 |
15.30 |
3.33–75 |
|
| Latency to REM onset, min |
66.81 |
26.57 |
24–150 |
|
| Percent time awake (of time in bed) |
3.62 |
1.05 |
1.50–5.97 |
|
| Percent time in NREM sleep |
54.52 |
11.78 |
24.33–78.76 |
|
| Percent time in REM sleep |
30.08 |
9.22 |
9.57–53.65 |
|
| Percent time body moving |
1.24 |
0.62 |
0.15–2.68 |
|
| Sleep efficiency (time asleep/time in bed) |
0.86 |
0.08 |
0.65–0.98 |
|
| PSQI global score (scale range 0–21) |
6.31 |
3.05 |
1–16 |
|
| Score > 5 |
|
|
|
67.9 |
| Positive relations with others (scale range 14–84) |
69.1 |
10.7 |
31–84 |
|
| Plasma IL-6, pg/ml |
1.33 |
1.54 |
0.42–12.01 |
|
