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Table 1 Baseline characteristics for sickness absentees with neck or shoulder pain

From: Prediction of 2-year work participation in sickness absentees with neck or shoulder pain: the contribution of demographic, patient-reported, clinical and imaging information

 Entire study sampleMRI sample
DemographicsN NMRI 
Male sex, n (%)16853 (31.5)9730 (30.9)
Age, median (IQR)16840.5 (34.5; 48.9)9741.4 (35.3; 49.9)
Patient-reported information
 Pain intensity (0–10) last week, median (IQR)1587 (5; 8)917 (5; 8)
 Whiplash trauma, n (%)16824 (14.3)9713 (13.4)
 Sick leave duration (months), median (IQR)1682.3 (1.2; 3.0)972.3 (1.4; 3.0)
 ÖMPSQ score, mean (SD)161122 (23.7)93121.8 (22.1)
 Education ≥3 years, n (%)15529 (18.7)8821 (23.9)
 Ongoing worker’s compensation claim, n (%)13936 (25.9)8219 (23.2)
Clinical information
 Radiculopathy, n (%)16841 (24.4)9728 (28.9)
  ≥ 11 tender points, n (%)16857 (33.9)9738 (39.2)
Intervention group
 Brief intervention, n (%)
 Multidisciplinary intervention, n (%)
16883 (49.4)
85 (50.6)
9749 (50.5)
48 (49.5)
 MRI information
 Kyphosis, n (%)  9723 (23.7)
 Disc height reduction, n (%)  9771 (73.2)
 Bulge, protrusion or extrusion, n (%)  8369 (83.1)
 Spinal canal stenosis, n (%)  9714 (14.4)
 Neural foraminal stenosis, n (%)  8446 (54.8)
 Zygapophyseal osteoarthritis, n (%)  8339 (47.0)
 Uncovertebral osteoarthritis, n (%)  7837 (47.4)