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Table 1 Inclusion criteria

From: Derivation and validation phase for the development of clinical prediction rules for rehabilitation in chronic nonspecific low back pain patients: study protocol for a randomized controlled trial

Inclusion criteria

Rationale

18 to 65 years old

Chronic low back pain in older adults is more likely to have specific causes (e.g., spinal canal stenosis)

Current nonspecific low back pain persisting ≥ 3 months

Condition studied is specifically chronic

Consulted a doctor during the last month for persistent low back pain

Back pain severe enough and motivation from the patient itself to seek treatment

Dutch fluency sufficient to follow treatment instructions and answer survey questions

Fully informed consent and data collection