| CLBP (n = 484) | Nr-axSpA (n = 71) | AS (n = 24) |
---|---|---|---|
Age, mean (SD) yearsa | 35.6 (7.1) | 36.8 (6.6) | 38.6 (5.8) |
Male sex, n (%) | 202 (42) | 30 (42) | 6 (25) |
LBP duration, mean (SD) years | 9.2 (7.7) | 9.6 (7.4) | 9.3 (9.9) |
Disease activity | |||
 VAS pain, median (IQR)b | 5 (3–7) | 4 (2–5) | 4.5 (2–7) |
 BASDAI, median (IQR) | 4.2 (2.3–6) | 3.9 (2.4–5.4) | 5.3 (2.9–6.6) |
 ASDAS-CRP, median (IQR)c | 2.3 (1.6–2.9) | 2.3 (1.6–2.9) | 2.8 (2.1–3.5) |
 RMDQ, median (IQR)d | 7 (3–13) | 6 (3–9) | 12 (5–17) |
Educational levele | |||
 Low (elementary school) (%) | 177 (38) | 29 (41) | 11 (46) |
 Medium (high school) (%) | 194 (41) | 24 (34) | 11 (46) |
 High (university) (%) | 101 (21) | 17 (24) | 2 (8) |
Work status | |||
 Employed, n (%) | 342 (72.2) | 55 (77.5) | 15 (62.5) |
 Disability pension, n (%) | 8 (1.7) | 2 (2.8) | 0 (0) |
 Number of hours working per week, mean (SD)f | 33.1 (9.4) | 34.6 (8.6) | 27.9 (12.4) |
Occupation in employed patientsf | |||
 Manual, n (%) | 124 (37) | 24 (46) | 4 (29) |
 Non-manual, n (%) | 208 (63) | 28 (54) | 10 (71) |