Barker D J, Dixon E, Taylor J F
J Bone Joint Surg Br. 1978 Nov;60-B(4):478-80. doi: 10.1302/0301-620X.60B4.711792.
Throughout 1976 orthopaedic surgeons in three regions of England forwarded details of all new patients with Perthes' disease attending outpatient clinics or admitted as inpatients. The incidence in the Mersey region (11.1 per 100 000 children under fifteen years) was twice that in Wessex (5.5) with Trent having an intermediate incidence (7.6). The ratio of male to female incidence varied between the regions as did the age distribution of male cases. These findings point to the importance of environmental factors in the aetiology of the disease, and suggest the need for further epidemiological studies.
1976年全年，英格兰三个地区的骨科医生提交了所有患佩特兹病的新门诊患者或住院患者的详细信息。默西地区的发病率（每10万名15岁以下儿童中有11.1例）是韦塞克斯地区（5.5例）的两倍，特伦特地区的发病率居中（7.6例）。各地区男女发病率之比不同，男性病例的年龄分布也不同。这些发现表明环境因素在该病病因学中的重要性，并提示需要进一步开展流行病学研究。
