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. 2022 Apr 20;79(6):538–549. doi: 10.1001/jamapsychiatry.2022.0653

Table 1. Characteristics of Women Randomized in the Triala.

Characteristic No. (%)
Total (N = 333) Treatment group
SHUTi-BWHS (n = 110) SHUTi (n = 108) PE (n = 115) P valueb
Age, mean (SD), yc 59.5 (8.0) 59.6 (8.4) 59.9 (8.0) 59.2 (7.7) .83
Education leveld .44
≤12 y 23 (6.9) 6 (5.5) 10 (9.3) 7 (6.1)
Some college 73 (21.9) 22 (20.0) 26 (24.1) 25 (21.7)
College degree 92 (27.6) 28 (25.5) 25 (23.2) 39 (33.9)
≥Graduate degree 145 (43.5) 54 (49.1) 47 (43.5) 44 (38.3)
Marital statuse .55
Married or living as married 128 (38.4) 46 (41.8) 42 (38.9) 40 (34.8)
Single, separated, divorced, or widowed 205 (61.6) 64 (58.2) 66 (61.1) 75 (65.2)
Living arrangement .38
Live alone 125 (37.5) 39 (35.4) 37 (34.3) 49 (42.6)
Live with others 208 (62.5) 71 (64.6) 71 (65.7) 66 (57.4)
Bed partner .42
No bed partner 216 (64.9) 66 (60.0) 72 (66.7) 78 (67.8)
Bed partner 117 (35.1) 44 (40.0) 36 (33.3) 37 (32.2)
Geographic region .29
Northeast 62 (18.6) 24 (18.6) 23 (21.3) 15 (13.0)
South 142 (42.6) 44 (40.0) 45 (41.7) 53 (46.1)
Midwest 56 (16.8) 14 (12.7) 17 (15.7) 25 (21.7)
West 73 (21.9) 28 (25.5) 23 (21.3) 22 (19.1)
Employment statuse .55
Currently employed 203 (61.0) 63 (57.3) 66 (61.1) 74 (64.4)
Not currently employed 130 (39.0) 47 (42.7) 42 (38.9) 41 (35.7)
Parityf .97
Nulliparous 85 (25.5) 29 (26.4) 27 (25.0) 29 (25.2)
Parous 248 (74.5) 81 (73.6) 81 (75.0) 86 (74.8)
Menopause status .82
Premenopausal 128 (38.4) 43 (39.1) 39 (36.1) 46 (40.0)
Postmenopausal 205 (61.6) 67 (60.9) 69 (63.9) 69 (60.0)
Alcoholic drinks per week, mean (SD)e 1.4 (2.2) 1.1 (1.9) 1.8 (2.6) 1.2 (2.1) .03
Smoking history .14
Current 20 (6.0) 5 (4.6) 10 (9.3) 5 (4.4)
Past 78 (23.4) 32 (29.1) 18 (16.7) 28 (24.4)
Never 235 (70.6) 73 (66.4) 80 (74.1) 82 (71.3)
Body mass indexg .21
<25 76 (22.8) 33 (30.0) 25 (23.2) 18 (15.7)
25-29 84 (25.2) 25 (22.7) 28 (25.9) 31 (27.0)
≥30 154 (46.2) 44 (40.0) 51 (47.2) 59 (51.3)
Unknown 19 (5.7) 8 (7.3) 4 (3.7) 7 (6.1)
Hypertension history .85
No 190 (57.1) 62 (56.4) 64 (59.3) 64 (55.7)
Yes 143 (42.9) 48 (43.6) 44 (40.7) 51 (44.3)
Type II diabetes .85
No 278 (83.5) 90 (81.8) 91 (84.3) 97 (84.4)
Yes 55 (16.5) 20 (18.2) 17 (15.7) 18 (15.7)
Ever medication-treated depression .06
No 190 (57.1) 53 (48.2) 64 (59.3) 73 (63.5)
Yes 143 (42.9) 57 (51.8) 44 (40.7) 42 (36.5)
Current medication-treated depression .62
No 306 (91.9) 100 (90.9) 98 (90.7) 108 (93.9)
Yes 27 (8.1) 10 (9.1) 10 (9.3) 7 (6.1)
Sleep apnea (actively treated)e .06
No 316 (94.9) 102 (92.7) 107 (99.1) 107 (93.0)
Yes 17 (5.1) 8 (7.3) 1 (0.9) 8 (7.0)

Abbreviations: BWHS, Black Women’s Health Study; PE, patient education; SHUTi, Sleep Healthy Using the Internet.

a

Values are from the 2015 BWHS health questionnaire unless otherwise indicated.

b

P values of continuous variables calculated using analyis of variance and of categorical variables using χ2 test.

c

Age in 2020.

d

Value last collected from BWHS in 2003.

e

Value from eligibility questionnaire.

f

Value last collected from BWHS in 2013.

g

Calculated as weight in kilograms divided by height in meters squared.