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. 2019 Jul 30;42(10):zsz149. doi: 10.1093/sleep/zsz149

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