• Fa-Ngam Charoenpol, Nuj Tontisirin, Borwornsom Leerapan, Rattaphol Seangrung, and Roderick J Finlayson.
• Department of Anesthesiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.
• J Pain Res. 2019 Jan 1; 12: 477-487.

ObjectivePain diaries are a valuable self-assessment tool; however, their use in chronic non-cancer pain has received limited attention. In this study, we examined the effect of pain diary use on pain intensity, interference, and intrapersonal change in patients with chronic non-cancer pain.MethodA convergent mixed-methods design was used to prospectively evaluate a cohort of 72 patients. Daily pain intensity and weekly pain-interference were self-reported using pain diaries for a 4-week period. Outcomes were assessed by examining changes in pain scores (primary outcome) as well as the Brief Pain Inventory and Short-form McGill Pain Questionnaire-2. In addition, qualitative data obtained from pain diary entries and focus-group interviews were analyzed using thematic content analysis.ResultsPain intensity and average pain scores were significantly lower after using the diaries. Participants reported less pain interference in mood, walking ability, normal work, and enjoyment of life. No differences were found in SF-MPQ-2 scores. Qualitative analysis indicated that better pain recognition and more effective communication with care providers led to improved self-management and more effectual treatment plans.ConclusionUse of a pain diary in patients with chronic non-cancer pain was associated with reduced pain intensity and improved mood as well as function. Further controlled trials examining the long-term effects of pain diaries are warranted.

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