Table 1.
Baseline Demographic and Clinical Characteristics of the Control, Treatment and Crossover Groups
| Variable | Control Group | Treatment Group | Crossover Group |
|---|---|---|---|
| Number of patients | 47 | 152 | 34 |
| Age (years) | |||
| Mean (SD) Median Min, max |
48.4 (10.5) 47.8 23.4, 64.8 |
45.4 (11.8) 46.5 18.1, 64.6 |
47.3 (11.0) 46.9 23.4, 62.6 |
| Sex, n (%) | |||
| Female Male |
27, (57.4) 20, (42.6) |
100 (65.8) 52 (34.2) |
20 (58.8) 14 (41.2) |
| Primary pain complaint, n (%) | |||
| Arthritis Neuropathy/radiculopathy Myofascial/musculoskeletal Other |
9 (19.1) 5 (10.6) 33 (70.2) — |
38 (25.0) 15 (9.9) 93 (61.2) 6 (3.9) |
3 (8.8) 4 (11.8) 27 (79.4) — |
| Months with primary pain complaint, n (%) | |||
| <1 1–3 3–12 >12 |
5 (10.6) 4 (8.5) 17 (36.2) 21 (44.7) |
3 (2.0) 29 (19.2) 49 (32.5) 70 (46.4) |
5 (14.7) 4 (11.8) 6 (17.6) 19 (55.9) |
| Hours with pain each of last 3 days | |||
| Mean (SD) Median Min, max |
13.4 (6.6) 10.0 6, 24 |
8.7 (5.5) 8.0 1, 24 |
15.1 (7.1) 15 6, 24 |
| Patients taking concurrent pain medication/s, n (%) | |||
| None OTC Prescription NSAID Opioid or anticonvulsant Muscle relaxant |
— 22 (46.8) 12 (25.5) 7 (14.9) 4 (8.5) |
10 (6.6) 92 (60.5) 56 (36.8) 5 (3.3) 5 (3.3) |
— 22 (64.7) 12 (35.3) 7 (20.6) 4 (11.8) |
Abbreviations: SD, standard deviation; Min, minimum; Max, maximum; OTC, over-the-counter; NSAID, nonsteroidal anti-inflammatory drug.