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. Author manuscript; available in PMC: 2022 Jun 1.
Published in final edited form as: Arch Phys Med Rehabil. 2021 Feb 5;102(6):1049–1058. doi: 10.1016/j.apmr.2021.01.072

Table 1.

Baseline Characteristics among 320 Participants Randomized to Yoga, Physical Therapy and Back Pain Education

Yoga
(n=127)
Physical Therapy
(n=129)
Education
(n=64)
Age, years, mean (SD) 46.7 (10.2) 46.0 (11.4) 44.3 (10.3)
Female, n (%) 72 (56.7) 90 (69.8) 42 (65.6)
Hispanic, n (%)
Yes 20 (15.7) 17 (13.2) 6 (9.4)
No 107 (84.3) 112 (86.8) 58 (90.6)
Race, n (%)
American Indian 0 (0) 1 (.8) 1 (1.5)
Asian/Pacific Islander 2 (1.6) 4 (3.1) 3 (4.7)
Black 70 (55.1) 62 (48.1) 40 (62.5)
White 30 (23.6) 17 (13.2) 11 (17.2)
Other/Multiple 23 (18.1) 30 (23.2) 9 (14.1)
Missing 2 (1.6) 15 (11.6) 0
BMI, mean (SD) 30.8 (6.7) 32.7 (7.4) 32.0 (8.1)
Annual Income ≤ $30,000, n (%) 76 (59.8) 71 (55.0) 41 (64.1)
Earned College Degree or Higher 38 (29.9) 30 (23.3) 25 (39.1)
RMDQ score, mean (SD) 13.9 (5.6) 15.6 (5.1) 15.0 (5.0)
Back pain intensity, mean (SD) 7.1 (1.5) 7.2 (1.5) 7.0 (1.4)
PHQ-8, mean (SD)* 7.7 (6.0) 8.5 (6.0) 8.23(5.7)
PHQ 0–4 49 (38.6) 39 (30.2) 20 (31.2)
PHQ 5–9 36 (28.4) 41 (31.8) 22 (34.4)
PHQ 10–14 21 (16.5) 25 (19.4) 12 (18.8)
PHQ 15–19 14 (11.0) 17 (13.2) 6 (9.4)
PHQ ≥20 7 (5.5) 7 (5.4) 4 (6.2)
GAD-7, mean (SD)* 6.9 (6.0) 7.2 (5.9) 7.3 (5.7)
GAD 0–4 61 (48.1) 59 (45.7) 23 (35.9)
GAD 5–9 29 (22.8) 30 (23.3) 21 (32.8)
GAD 10–14 15 (11.8) 19 (14.7) 11 (17.2)
GAD ≥15 22 (17.3) 21 (16.3) 9 (14.1)

BMI, body mass index; RMDQ, Roland-Morris Disability Questionnaire; PHQ-8, Patient Health Questionnaire Depression Scale; GAD-7, Generalized Anxiety Disorder 7-item Scale; SD, standard deviation

*

Subgroups are n (%)