“…Brown and Nicassio 18 found that patients who used an active coping style (eg, doing leisure activities) experienced higher SE and lower levels of pain, depression, and functional impairment when compared to patients using a passive or negative coping style (eg, thinking that the pain was wearing them down). The inverse relationship between pain ratings and SE has been confirmed in patients with chronic arthritis, 19,20 neck, shoulder, and lower back pain, 21–23 reflex sympathetic dystrophy, neuropathy, fibromyalgia, 24 and headaches 25,26 . Similar results have been reported from factor analytic and multiple regression studies 17,24 …”