Hennessy A, Swingler R J, Compston D A
Department of Medicine, University of Wales College of Medicine, Cardiff, UK.
J Neurol Neurosurg Psychiatry. 1989 Sep;52(9):1085-9. doi: 10.1136/jnnp.52.9.1085.
The incidence of multiple sclerosis was shown to be 8.2/10(5)/year (definite or probable 5.4 and suspected 2.8/10(5)/year) during a 3 year prospective study carried out in an area of south east Wales which has a high prevalence of the disease (120/10(5). Mortality in affected individuals who were prevalent at the start of the survey was 3.1/10(5)/year; many deaths resulted from direct complications of multiple sclerosis but 38% were due to unrelated causes. The rate at which new cases were identified approximately matched deletions from the register arising from death, outward migration and other causes so that prevalence did not change significantly during the survey (1985-1988).
在威尔士东南部一个该疾病高发地区(患病率为120/10⁵)进行的为期3年的前瞻性研究显示,多发性硬化症的发病率为8.2/10⁵/年(确诊或疑似病例为5.4/10⁵/年,疑似病例为2.8/10⁵/年)。在调查开始时已患该病的个体死亡率为3.1/10⁵/年;许多死亡是由多发性硬化症的直接并发症导致的,但38%是由无关原因引起的。新病例的发现率与因死亡、外迁及其他原因从登记册中删除的病例数大致相当,因此在调查期间(1985 - 1988年)患病率没有显著变化。