TY - JOUR T1 - The Relationship between chronic low back pain and sleep pattern (using data derived from the Persian cohort; Fasa( TT - ارتباط کمردرد مزمن و الگوی خواب (با استفاده از داده‌های برگرفته از طرح پرشین کوهورت؛ شاخه فسا)ارتباط کمردرد مزمن و الگوی خواب JF - JABS JO - JABS VL - 9 IS - 1 UR - http://jabs.fums.ac.ir/article-1-1856-en.html Y1 - 2019 SP - 1301 EP - 1305 KW - chronic low back pain KW - sleep pattern KW - Persian cohort N2 - Background & objective: Chronic low back pain is one of the most common disorders associated with chronic pain that is correlated with a wide range of psychological issue such as problems in sleep pattern. The purpose of this study was to investigate the relationship between sleep pattern and chronic low back pain. Materials & Methods: The research method was cross-sectional- descriptive–analytic and the statistical populations were residents of Sheshdeh of Fars province. Among them 1,366 people participated in the study by convenience sampling method. The instrument included a questionnaire of Persian cohort, Oswestry inventory and McGill Questionnaire. Data were analyzed using SPSS . V-24 software. Results: 90.9% of the subjects were male and 39.09% were female. The results showed that there is a reverse relationship between the LBP، pattern and the quality of sleep, and with the increase in pain, the amount of sleep decreases. Conclusion: results of this study indicate that the quality of sleep should be considered in treatment of patients with chronic pain, especially those with chronic LBP. M3 ER -