Figure 1

Identified causes of pain. Possible underlying causes of pain in (1) all patients pooled (n = 2,436) and (2) the patients with a LANSS pain score ≥ 12 (n = 1,163). Patients may have multiple underlying pathologies. DN: diabetic neuropathy, TS: trigeminal syndrome (neuralgia); Ca: cancer, LP: lumbar pain, OP: osteoporosis; MS: multiple sclerosis, PHN: post-herpetic neuralgia, CRPS: complex regional pain syndrome; SM: Syringomyelia; CCS: carpal canal syndrome; pCVA: post-cerebrovascular accident; Alc: alcohol abuse; PSL: post-surgical lesions; PTL: post-traumatic lesion; OA: osteoarthritis.