BACKGROUND: Osteoarthritis (OA) patients who are overweight or obese report higher levels of pain compared with their normal-weight OA counterparts. Evidence suggests that overweight or obese OA patients also experience pain relief from eating foods high in calories, fat or sugar. Eating to alleviate pain may be problematic because it can lead to additional weight gain, which may contribute to heightened pain.OBJECTIVES: To investigate the relationship between pain and food intake using ecological momentary assessments in a sample of 71 over-weight and obese OA patients.METHODS: Participants completed two consecutive days of diary entries in which they recorded their levels of pain, mood and food intake throughout the day. Data were analyzed using generalized estimating equations that modelled pain as a predictor of calorie, fat and sugar intake. All models were adjusted for sex, body mass index, negative mood, time and treatment history.RESULTS: Pain significantly predicted calorie (Z=2.57; P=0.01) and fat intake (Z=1.99; P=0.05).CONCLUSIONS: Using ecological momentary assessments as a novel approach, the present study provides preliminary data supporting a relationship between pain and food intake among overweight and obese OA patients. Continued advances in our understanding of the relationship between pain and eating behaviour may help to optimize intervention strategies for these patients.

中文翻译：

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超重和肥胖骨关节炎患者疼痛与进食的关系：生态学瞬时研究

背景：超重或肥胖的骨关节炎（OA）患者与正常体重的OA患者相比，疼痛水平更高。有证据表明，超重或肥胖的OA患者也可以通过进食高热量，高脂肪或高糖的食物来缓解疼痛。饮食以减轻疼痛可能是有问题的，因为它可能导致体重增加，从而加剧疼痛。目的：使用生态瞬时评估方法对71名超重和肥胖的OA患者进行调查，以研究疼痛与食物摄入之间的关系。方法：参与者连续两天完成日记输入，记录他们整天的疼痛，情绪和食物摄入量。使用广义估计方程对数据进行分析，该方程将疼痛建模为卡路里，脂肪和糖摄入量的预测指标。所有模型均经过性别，体重指数，负面情绪，时间和治疗史的调整。结果：疼痛可显着预测卡路里（Z = 2.57; P = 0.01）和脂肪摄入（Z = 1.99; P = 0.05）。作为一种新颖的生态瞬时评估方法，本研究提供了支持超重和肥胖OA患者疼痛与食物摄入之间关系的初步数据。我们对疼痛与进食行为之间关系的理解的不断进步可能有助于优化针对这些患者的干预策略。本研究提供了支持超重和肥胖OA患者疼痛与食物摄入之间关系的初步数据。我们对疼痛与进食行为之间关系的理解的不断进步可能有助于优化针对这些患者的干预策略。本研究提供了支持超重和肥胖OA患者疼痛与食物摄入之间关系的初步数据。我们对疼痛与进食行为之间关系的理解的不断进步可能有助于优化针对这些患者的干预策略。