Table 1.
Demographics and pain characteristics of the study population at baseline, N = 131
| Intervention (66) | Control (65) | |
|---|---|---|
| Age, Mean (sd) | 57 (14,0) | 57,5 (13,7) |
| Female, n (%) | 37 (56) | 36 (55) |
| Pain duration | ||
| 1. Less than 6 months, n (%) | 0 (0) | 1 (2) |
| 2. 6–12 months, n (%) | 8 (12) | 10 (16) |
| 3. Several years, n (%) | 57 (88) | 51 (82) |
| STarT Back categories | ||
| 1. Low risk, n (%) | 47 (80) | 48 (79) |
| 2. Medium risk, n (%) | 7 (12) | 11 (18) |
| 3 High risk, n (%) | 5 (9) | 2 (3) |
| If seeing a chiropractor before, how effective was it? | ||
| 1. Never seen a chiropractor before, n (%) | 12 (19) | 11 (17) |
| 2. Good or excellent, n (%) | 39 (60) | 35 (55) |
| 3. No difference, n (%) | 14 (22) | 17 (27) |
| 4. Got worse, n (%) | 0 (0) | 1 (2) |
| Type of occupation | ||
| 1. No job, n (%) | 19 (29) | 20 (31) |
| 2. Mostly hard labor, varied or standing, n (%) | 17 (27) | 15 (23) |
| 3. Mostly sitting, n (%) | 30 (46) | 30 (46) |
| Similar pain previously | ||
| 1. No, n (%) | 35 (53) | 34 (56) |
| 2. Yes, n (%) | 31 (47) | 27 (44) |
| Arm pain, n (%) | 42 (65) | 36 (57) |
| Pain in the midback, n (%) | 39 (61) | 37 (62) |
| Pain in the low back, n (%) | 39 (62) | 37 (59) |
| Sick leave the previous year | ||
| Do not work, n (%) | 13 (20) | 18 (28) |
| No, n (%) | 47 (71) | 41 (63) |
| Yes, between 1 and 7 days, n (%) | 3 (5) | 2 (3) |
| Yes, between 8 and 14 days, n) (%) | 3 (5) | 0 (0) |
| Yes, more than 15 days, n (%) | 0 (0) | 4 (6) |
| Expect to improve (0–10), Mean (std) | 6,0 (2,2) | 5,8 (2,3) |