Skip to main content
. 2022 Oct 27;164(5):1128–1137. doi: 10.1097/j.pain.0000000000002811

Table 1.

Demographic and clinical characteristics at baseline.*

Characteristic Overall (N = 82) FA-US (N = 40) US-FA (N = 42) Difference
Age, y 27.8 (6.4) 28.0 (7.0) 27.6 (5.8) t(80)= 0.29, 0.77
Female sex, no. (%) 44 (53.7) 24 (60.0) 20 (47.6) X2(1, 82)= 1.26, 0.26
Race group, no. (%) X2(4, 81)= 3.96, 0.41
 Asian 11 (13.6) 4 (10.3) 7 (16.7)
 Black 28 (34.6) 14 (35.9) 14 (33.3)
 White 37 (45.7) 20 (51.3) 17 (40.5)
 Multiracial 3 (3.7) 0 (0.0) 3 (7.1)
 Others 2 (2.5) 1 (2.6) 1 (2.4)
Ethnicity, no (%) X2(1, 82)= 1.01, 0.38
 Non-Hispanic 69 (84.1) 32 (80.0) 37 (88.1)
 Hispanic 13 (15.9) 8 (20.0) 5 (11.9)
Marital status, no. (%) X2(4, 82)= 1.72, 0.79
 Single 68 (82.9) 32 (80.0) 36 (85.7)
 Married 5 (6.1) 2 (5.0) 3 (7.1)
 Divorced 2 (2.4) 1 (2.5) 1 (2.4)
 Separated 3 (3.7) 2 (5.0) 1 (2.4)
 Living w/partner 4 (4.9) 3 (7.4) 1 (2.4)
Education, no. (%) X2(6, 81)= 3.33, 0.77
 Doctoral degree 6 (7.4) 2 (5.0) 4 (9.8)
 Master's degree 10 (12.3) 6 (15.0) 4 (9.8)
 College graduate 39 (48.1) 19 (47.5) 20 (48.8)
 Some college 19 (23.5) 9 (22.5) 10 (24.4)
 Some college (current student) 1 (1.2) 1 (2.5) 0 (0.0)
 Tech. School grad 1 (1.2) 1 (2.5) 0 (0.0)
 High school graduate 5 (6.2) 2 (5.0) 3 (7.3)
Employment, no.(%) X2(6, 81)= 3.70, 0.72
 Student (full time) 6 (7.4) 3 (7.5) 3 (7.3)
 Student (full or part time) 25 (30.9) 11 (27.5) 14 (34.1)
 Student (part time) 1 (1.2) 0 (0.0) 1 (2.4)
 Unemployed 10 (12.3) 6 (15.0) 4 (9.8)
 Working for pay (full time) 19 (23.5) 11 (27.5) 8 (19.5)
 Working for pay (part time) 19 (23.5) 8 (20.0) 11 (26.8)
 Homemaker 1 (1.2) 1 (2.5) 0 (0.0)
Body mass index 25.7 (3.8) 25.5 (3.9) 25.9 (3.6) t(80)= −0.52, 0.61
Pittsburgh Sleep Quality Index§ 1.9 (1.35) 2.0 (1.4) 1.7 (1.3) t(80)= 0.96, 0.35
*

Values are means +/−(SD), unless otherwise specified with 95% confidence intervals.

Race and ethnicity were reported by the participants.

The body mass index is the weight in kilograms divided by the square of the height in meters.

§

Pittsburgh Sleep Quality Index measures severity of sleep disturbance; a score of <5 indicates no clinically significant sleep disturbance.