線維筋痛症とchronic widespread painの比較

Comparison between Fibromyalgia and Chronic Widespread Pain

　線維筋痛症（FM）もchronic widespread pain（CWP）も広範な疼痛を引き起こす症候群であり，有病率は各々約2％，10％以上である．FM患者53人とCWP患者52人の初診時年齢・初発時年齢・性比・外傷後に発症した割合を比較した．FM患者とCWP患者の初診時年齢は51.6歳と54.1歳，初発時年齢は44.4歳と46.5歳，女性の割合は69.8％と76.9％，外傷後に発症した割合は37.7％と34.6％であり，いずれも統計学的有意差はなかった．CWPの一部はFMの前段階と考えている．

　Fibromyalgia (FM) and chronic widespread pain (CWP) are both syndromes that cause widespread pain and their prevalence is approximately 2％ and more than 10％, respectively. Age at the initial visit, age at onset, sex ratio, and ratio of posttraumatic onset of 53 patients with FM and 52 patients with CWP were compared. Age at the initial visit of the FM patients and CWP patients was 51.6 years and 54.1 years respectively, age at onset was 44.4 years and 46.5 years respectively, proportion of females was 69.8％ and 76.9％, respectively and proportion with posttraumatic onset was 37.7％ and 34.6％, respectively. I speculate that in some cases CWP represents a stage in the developmant of FM, because both syndromes show similar symptoms and epidemiologic characteristic but symptoms of FM are more serious than those of CWP.