Table 1.
Baseline characteristics of women by sleep debt, Women’s Health Study Sample, N = 22 082
| Sleep debt | ||||
|---|---|---|---|---|
| Total sample | No | Yes | ||
| (N = 22 082) | (n = 20 317) | (n = 1412) | P | |
| Age, M (SD) | 72.1 (6.0) | 72.2 (6.0) | 69.2 (4.5) | <.0001 |
| Marital status, % | <.0001 | |||
| Single | 5.3 | 5.1 | 6.9 | |
| Currently married | 77.0 | 77.7 | 72.5 | |
| Divorced or separated | 13.1 | 12.7 | 17.3 | |
| Widowed | 4.5 | 4.6 | 3.3 | |
| Education,% | .30 | |||
| <BS degree | 51.8 | 51.5 | 50.9 | |
| ≥BS degree | 46.6 | 46.8 | 48.0 | |
| Missing education | 1.7 | 1.7 | 1.2 | |
| Household income, % | .01 | |||
| <$50 000 | 48.0 | 37.9 | 36.0 | |
| ≥$50 000 | 56.3 | 56.6 | 60.1 | |
| Missing income | 5.5 | 5.6 | 4.0 | |
| History of hypertension, % | 69.8 | 69.4 | 72.1 | .04 |
| History of diabetes mellitus, % | 10.0 | 9.6 | 13.7 | <.0001 |
| Hypercholesterolemia, % | 73.5 | 73.5 | 73.5 | .39 |
| Body mass index, % (kg/m2) | <.0001 | |||
| Normal/underweight (BMI <25) | 42.7 | 43.2 | 36.2 | |
| Overweight (BMI 25–29.9) | 34.1 | 34.2 | 33.2 | |
| Obese (BMI ≥30) | 23.3 | 22.6 | 30.6 | |
| METS, M (SD) (hrs/wk) | 17.7 (16.7) | 17.9 (16.7) | 16.0 (16.5) | <.0001 |
| Physical activity, % | .0009 | |||
| Rarely/never | 35.3 | 35.0 | 38.6 | |
| <1 | 20.1 | 20.0 | 22.0 | |
| 1–3 | 32.7 | 33.0 | 29.3 | |
| >3 | 11.8 | 12.0 | 10.2 | |
| Alcohol use, % | .001 | |||
| Rarely/never | 85.1 | 84.8 | 88.0 | |
| 1+ Alcoholic drink/day | 14.9 | 15.2 | 12.0 | |
| Smoking status, % | .15 | |||
| Never | 50.1 | 50.0 | 51.2 | |
| Past | 45.1 | 45.3 | 43.2 | |
| Current | 4.8 | 4.7 | 5.6 |