Baseline characteristics
| Outpatient | Inpatient | |
| Age (years), mean (SD) | ||
| Gender (female/male), n (%) | ||
| Dominant hand affected, n (%) | ||
| Work Ability Score (WAS) | ||
| Physically demanding job, n (%) | ||
| Ability to work normally irrespective of the symptoms? n (%) | ||
| Participation in leisure time activities irrespective of the symptoms? n (%) | ||
| Duration of symptoms (days), mean (SD) | ||
| Sick leave duration (days) | ||
| Prior treatments (Physiotherapy) n (%) | ||
| Non-steroidal anti-inflammatory drugs (NSAID) pain medication, n (%) | ||
| Opioid pain medication, n (%) | ||
| Neuropathic pain medication, n (%) | ||
| Euroqol health related quality of life assesment instrument (EQ-5D-5L), mean (SD) | ||
| Neck Disability Index (NDI) scores (0–100 NDI), mean (SD) | ||
| Neck pain at rest (0–10 NRS), mean (SD) | ||
| Arm pain at rest (0–10 NRS), mean (SD) |
NRS, Numeric Rating Scale .