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. Author manuscript; available in PMC: 2021 Apr 1.
Published in final edited form as: J Affect Disord. 2020 Jan 23;266:100–108. doi: 10.1016/j.jad.2020.01.101

Table 1.

Characteristics of Three Samples in the Randomized Controlled Trials (RCTs)*

Sample 1 CAMEO RCT (N1=153) Sample 2 SPACE RCT (N2=240) Sample 3 SSSM RCT (N3=258)
Clinical Population Chronic low back pain Chronic musculoskeletal pain Stroke survivors
Recruitment Setting Primary care Primary care Neurology
Age, mean (SD) 58.1 (9.3) 58.3 (13.7) 61.7 (10.8)
Male, n (%) 140 (91.5) 208 (86.7) 209 (81.0)
Race,* n (%)
 White 111 (72.5) 207 (86.2) 166 (64.3)
 Black 37 (24.2) 18 (7.5) 78 (30.2)
 Other 5 (3.3) 15 (6.3) 14 (5.4)
Education, n (%)
 Less than high school 8 (5.2) 6 (2.5) 31 (12.2)
 High school 49 (32.0) 71 (29.6) 85 (33.3)
 Technical school or some college 74 (48.4) 103 (42.9) 80 (31.4)
 College degree or greater 22 (14.4) 60 (25.0) 59 (23.1)
Marital status, n (%)
 Married 81 (52.9) 135 (56.5) 135 (52.5)
 Divorced 43 (28.1) 60 (25.1) 68 (26.5)
 Other 29 (19.0) 44 (18.4) 54 (21.0)
PROMIS T-scores, mean (SD)
 Depression 4-item 53.5 (9.9) 50.3 (9.1) 51.3 (9.2)
 Depression 6-item 53.2 (10.3) 49.9 (9.5) 50.5 (10.0)
 Depression 8-item 53.0 (10.2) 49.6 (9.5) 50.3 (9.9)
 Depression short-form 53.0 (10.3) 49.7 (9.7) 50.0 (10.3)
PHQ-9 depression score (possible range: 0–27), mean (SD) 11.1 (6.2) 6.2 (5.0) 7.7 (6.2)
Cross-sectional Global Ratings of Depression (0–4), mean (SD) 2.5 (1.0) 2.0 (0.9) 1.9 (1.0)
DSM-V depressive disorder, N (%)
 Major depression 68 (44.4) 36 (15.0) 66 (25.6)
 Minor depression 21 (13.7) 23 (9.6) 21 (8.1)
Disability days in the past 4 weeks, mean (SD) 16.3 (8.6) 10.3 (9.0) 5.1 (7.7)
*

CAMEO = Care Management for Effective Use of Opioids RCT

SPACE = Strategies for Prescribing Analgesics Comparative Effectiveness RCT

SSSM = Stroke Survivor Self-Management RCT