Table 2 Characteristics of people within levels of attendance
High attendance (n = 918) | Medium attendance (n = 420) | Low attendance (n = 392) | Unknown attendance (n = 665) | |
|---|---|---|---|---|
Sex, % female | 69.8 | 69.1 | 67.4 | 70.2 |
missing % | 1.2 | 0.5 | 0.5 | 2.6 |
Age, median (IQR) | 59 (50–67) | 59 (49–68) | 61 (53–68) | 59 (48–68) |
missing % | 0.4 | 0.2 | 1.0 | 0.9 |
Education, % | ||||
No qualifying training | 39.3 | 37.9 | 38.5 | 40.6 |
Vocational education | 15.3 | 13.9 | 13.5 | 13.6 |
Higher education (< 5 years) | 41.9 | 43.7 | 43.5 | 38.9 |
Higher education (5+ years) | 3.5 | 4.6 | 4.4 | 6.9 |
missing % | 1.5 | 0.7 | 2.0 | 4.1 |
Work situation, % | ||||
Ordinary work | 52.1 | 47.7 | 43.0 | 46.1 |
Unemployed | 2.4 | 3.4 | 4.0 | 3.3 |
Rehabilitation/Flex job | 5.9 | 3.7 | 5.8 | 6.0 |
Disability pension | 3.1 | 4.1 | 7.1 | 5.5 |
Retired | 30.6 | 31.4 | 33.0 | 29.4 |
Student/trainee/other | 5.9 | 9.7 | 7.1 | 9.8 |
missing % | 4.3 | 2.1 | 3.3 | 4.4 |
Working hours per weeka, % | ||||
Part-time (< 37 h) | 27.9 | 34.9 | 32.3 | 33.6 |
Full time (37 h) | 34.4 | 30.7 | 26.0 | 32.9 |
> 37 h | 37.7 | 34.4 | 41.8 | 33.6 |
missing % | 2.2 | 2.0 | 3.1 | 1.4 |
Current sick leavea, % | 5.2 | 8.6 | 8.6 | 7.9 |
missing % | 11.4 | 11.2 | 14.1 | 9.6 |
Co-morbid pain sites, % | ||||
None | 2.7 | 4.1 | 2.0 | 5.7 |
1–3 | 59.8 | 58.0 | 60.1 | 52.1 |
4+ | 37.8 | 38.0 | 38.9 | 42.2 |
missing % | 9.5 | 7.1 | 10.5 | 17.7 |
Co-morbid disease, % | ||||
None | 15.0 | 16.4 | 19.9 | 14.5 |
1–2 | 62.6 | 58.3 | 57.0 | 59.8 |
3+ | 22.4 | 25.3 | 23.2 | 25.7 |
missing % | 26.7 | 25.7 | 23.0 | 24.5 |
Duration of current LBP, % | ||||
< 4 weeks | 8.1 | 10.3 | 5.4 | 5.2 |
4–12 weeks | 11.4 | 11.7 | 12.8 | 12.8 |
3–12 months | 22.9 | 19.6 | 21.3 | 22.7 |
> 12 months | 57.7 | 58.4 | 60.5 | 59.4 |
missing % | 1.3 | 0.5 | 0.5 | 3.8 |
LBP intensity (0–10), median (IQR) | 5 (4–7) | 6 (4–7) | 6 (4–7) | 5 (4–7) |
missing % | 1.0 | 0.5 | 0.3 | 3.0 |
Leg pain present, % | 69.9 | 76.5 | 78.8 | 78.5 |
missing % | 0.8 | 0.7 | 0.0 | 3.5 |
Start Back Screening Tool, % | ||||
Low risk | 51.8 | 46.9 | 42.5 | 39.0 |
Medium risk | 25.8 | 31.1 | 26.6 | 31.7 |
High risk | 22.4 | 22.0 | 31.0 | 29.3 |
missing % | 1.6 | 0.5 | 2.0 | 6.6 |
Self-efficacy ‘pain’ (0–50), median (IQR) | 35 (25–41) | 36 (28–41) | 34 (27–40) | 32 (26–39) |
missing % | 4.6 | 2.4 | 7.1 | 15.5 |
Self-efficacy ‘other symptoms’ (0–60), median (IQR) | 40 (33–47) | 40 (33–48) | 39 (30–47) | 38 (31–44) |
missing % | 6.5 | 3.4 | 8.2 | 16.4 |
Illness Belief (0–80), median (IQR) | 43 (35–50) | 43 (35–49) | 44 (35–52) | 45 (37–52) |
missing % | 2.1 | 0.7 | 3.1 | 8.4 |
Disability (0–100), median (IQR) | 22 (16–32) | 24 (16–32) | 24 (16–34) | 26 (18–34) |
missing % | 2.0 | 0.7 | 2.0 | 10.2 |
Extensor endurance (seconds), median (IQR) | 78 (40–152) | 70 (38–141) | 71 (34–144) | 65 (31–129) |
missing % | 0.9 | 0.7 | 2.0 | 2.0 |
Abdominal endurance (seconds), median (IQR) | 47 (25–80) | 40 (25–70) | 45 (24–74) | 43 (23–73) |
missing % | 1.5 | 0.7 | 1.5 | 2.7 |
Sit-to-stand test (repetitions), median (IQR) | 12 (10–15) | 12 (10–14) | 12 (10–15) | 12 (9–14) |
missing % | 0.8 | 0.7 | 0.8 | 1.2 |
Answering of baseline questionnaire stopped before end of survey, % | 2.2 | 0.5 | 3.1 | 11.6 |