Intervention group n = 178 | Control group n = 186 | intervention vs control | Age adjusted intervention vs control | |
---|---|---|---|---|
%(n) | %(n) | OR (95% CI); P value | OR (95% CI); P value | |
Imaginga (yes/no) | ||||
3 months | 10.8 (19) | 16.7 (31) | 0.57 (0.27 to 1.22); 0.147 | 0.60 (0.29–1.24); 0.166 |
12 months | 17.5 (31) | 29.7 (54) | 0.50 (0.30 to 0.83); 0.008 | 0.52 (0.32 to 0.84); 0.007 |
Radiographsa | ||||
3 months | 5.6 (10) | 9.1 (17) | 0.57 (0.25 to 1.29); 0.178 | 0.58 (0.25–1.33); 0.199 |
12 months | 8.4 (15) | 14.7 (27) | 0.55 (0.34 to 0.88); 0.013 | 0.58 (0.37 to 0.90); 0.016 |
Magnetic resonance imaging (MRI) a | ||||
3 months | 7.3 (13) | 8.6 (16) | 0.86 (0.49 to 1.52); 0.610 | 0.90 (0.55–1.48); 0.688 |
12 months | 12.8 (23) | 21.1 (39) | 0.61 (0.44 to 0.84); 0.002 | 0.64 (0.49 to 0.84); 0.001 |
Computed tomography (CT) a | ||||
3 months | 0 (0) | 1.6 (3) | c | c |
12 months | 0.6 (1) | 2.2 (4) | c | c |
MRI + CTa | ||||
3 months | 7.3 (13) | 9.1 (17) | 0.81 (0.45 to 1.46);0.475 | 0.86 (0.51–1.4); 0.555 |
12 months | 13.4 (24) | 21.7 (40) | 0.60 (0.39 to 0.91); 0.016 | 0.64 (0.45 to 0.91); 0.014 |
mean(SD); sum | mean(SD); sum | RR (95% CI); P-value | RR (95% CI); P-value | |
Sick leave daysb | ||||
3 months | 3.8 (11.2); 664 | 8.4 (20.2); 1526 | 0.47 (0.26 to 0.83); 0.010 | 0.48 (0.29 to 0.81); 0.006 |
12 months | 7.5 (31.3); 1330 | 20.8 (59.2); 3717 | 0.36 (0.18 to 0.72); 0.004 | 0.39 (0.22–0.70); 0.002 |
Physician appointments b | ||||
3 months | 1.1 (1.4); 156 | 1.2 (1.5); 188 | 0.92 (0.44 to 1.9); 0.813 | 0.92 (0.44 to 1.9); 0.822 |
12 months | 1.6 (2.1); 231 | 1.8 (2.3); 283 | 0.87 (0.4 to 1.9); 0.725 | 0.87 (0.41 to 1.78); 0.678 |
Physiotherapist appointmentsb | ||||
3 months | 1.2 (1.7); 212 | 1.3 (1.1); 235 | 0.88 (0.56 to 1.40); 0.601 | 0.89 (0.55 to 1.43); 0.618 |
12 months | 1.7 (2.6); 297 | 2.0 (2.2); 359 | 0.83 (0.55 to 1.2); 0.356 | 0.83 (0.56 to 1.23); 0.829 |
Nurse appointmentsb | ||||
3 months | 0.3 (1.2); 60 | 0.2 (0.7); 41 | 1.3 (0.20 to 8.42); 0.772 | 1.3 (0.20 to 9.69); 0.749 |
12 months | 0.6 (1.8); 107 | 0.3 (1.0); 60 | 1.72 (0.34 to 8.66); 0.514 | 1.93 (0.34 to 11.04); 0.458 |
Secondary health care appointments (physiatrist + orthopedist)b | ||||
3 months | 0.3 (1.0); 48 | 0.3 (0.7); 55 | 1.06 (0.68 to 1.65); 0.801 | 1.10 (0.73 to 1.64); 0.662 |
12 months | 0.6 (1.6); 87 | 0.7 (1.8); 132 | 0.81 (0.49 to 1.35); 0.426 | 0.84 (0.53 to 1.33); 0.447 |