Manta P, Kalfakis N, Vassilopoulos D
Department of Neurology, Athens National University, Greece.
Neuroepidemiology. 1989;8(5):262-5. doi: 10.1159/000110192.
Fifty-one cases of polymyositis/dermatomyositis were reviewed in order to investigate seasonal distribution in the onset of the disease. The time (month, season) of first admission of the 51 patients was evaluated as well as the time of initial symptoms onset in 26 cases with duration of the disease which was less than 1 year. In both groups a concentration of cases was found for the months of March, April and May. This concentration was statistically significant (p less than 0.003 and p less than 0.007, respectively). These findings suggest that environmental factors could be involved in the etiology of the disease.
为了研究多发性肌炎/皮肌炎发病的季节分布情况，对51例该疾病患者进行了回顾性分析。评估了这51例患者首次入院的时间（月份、季节）以及26例病程小于1年患者的初始症状出现时间。在这两组中，均发现3月、4月和5月的病例较为集中。这种集中情况具有统计学意义（分别为p<0.003和p<0.007）。这些发现表明环境因素可能参与了该疾病的病因。
