Table 3.
Baseline characteristics of 216 subjects enrolled in the REEF study
| Motivational interviewing (n=107) |
Education attention control (n=109) |
|
|---|---|---|
| Age in years, mean (SD) | 46.0 (11.4) | 45.7 (11.0) |
| Gender, % female | 96.3 | 95.4 |
| Ethnicity, % non-Hispanic | 99.1 | 98.2 |
| Race, % white | 90.7 | 86.2 |
| Education, % > high school | 76.6 | 78.9 |
| Marital status, % married | 57.9 | 64.2 |
| Employment, % employed | 57.9 | 49.5 |
| Body mass index, mean (SD) | 32.3 (7.6) | 30.5 (6.6) |
| Duration of fibromyalgia diagnosis in years, mean (SD) |
8.9 (6.4) | 9.1 (7.6) |
| PHQ-8 depression (range 0-24), mean (SD) | 12.4 (4.8) | 12.7 (5.1) |
| BPI pain intensity (range 0-10), mean (SD) | 5.9 (1.2) | 6.0 (1.4) |
| FIQ-physical impairment (range 0-10), mean (SD) | 5.3 (1.5) | 5.4 (1.7) |
| FIQ total (range 0-100), mean (SD) | 67.5 (12.0) | 66.6 (13.5) |
| Exercise self-efficacy (range 0-10), mean (SD) | 5.4 (1.9) | 5.3 (2.0) |
| Decisional balance: benefit-barrier (range -20 - 44), mean (SD) |
26.0 (8.7) | 25.0 (8.2) |
| Intention to exercise, (range 1-7)† | 4 (2.7, 4.7) | 4 (3.0, 4.7) |
| Medications, % prescribed Non-tricyclic antidepressants Anticonvulsants Opioid analgesics |
66.4 31.8 32.7 |
57.8 27.5 33.0 |
| CHAMPS, mean (SD) Light only (hrs/wk) Moderate only (hrs/wk) Vigorous only (hrs/wk) |
4.9 (4.4) 1.4 (2.4) 0.1 (0.8) |
5.2 (5.0) 1.7 (4.1) 0.2 (0.7) |
| Activity monitor, mean (SD) Counts/wk ×104 Steps/wk ×104 Min/wk of ≥ moderate activity |
125.0 (55.5) 2.9 (1.2) 99 (86) |
133.3 (62.4) 2.9 (1.1) 112 (101) |
| Meters walked in 6 minutes, mean (SD) ‡ | 479.5 (75.5) | 486.5 (84.7) |
Abbreviations: PHQ-8 = Patient Health Questionnaire-8; BPI = Brief Pain Inventory; FIQ = Fibromyalgia Impact Questionnaire; CHAMPS = Community Health Activities Model Program for Seniors; n = number of patients; SD = standard deviation.
†
Median score (1st, 3rd quartiles).
‡
Average of two 6-minute walk tests.
Note: For PHQ-8, BPI and FIQ scales, a higher score indicates a worse state of health.