Objective:This study aims to (i) determine the presence of chronic neuropathic low back pain (LBP) in young patients and (ii) evaluate the anxiety, quality of life and quality of sleep in neuropathic and nociceptive LBP.Materials and Methods:A total of 83 young patients (aged 18-45 years) with chronic LBP who were followed by the family medicine and physical treatment outpatient clinics in a tertiary hospital were enrolled in this observational, cross-sectional study. The leeds assessment of neuropathic symptoms and signs, douleur neuropathique-4, short form-36 (SF-36), state-trait anxiety inventory (STAI) and Pittsburgh Sleep Quality index (PSQI) scales were used to evaluate neuropathic pain, quality of life, anxiety and quality of sleep.Results:Neuropathic LBP was reported in 42 of 83 patients (50.6%). The mean age and work-life duration of the patients were 32.6±7.0 and 11.9±7.7 years. Although there was a significant difference in the groups’ income levels between neuropathic and nociceptive LBP (p=0.034), there was no difference regarding age, gender, marital status, education, height, weight, Body Mass index, occupation and standing or sitting posture at work. The results of STAI, SF-36 and PSQI in the neuropathic LBP group were significantly worse (p=0.000, p=0.000 and p=0.000, respectively) than in the nociceptive LBP group. Cut-off values of ≥44 points on the STAI scale [area under the curve (AUC): 0.90; 95% confidence interval (CI): 0.84-0.96; p
