The prevalence of multiple sclerosis in South East Wales

Abstract

A population-based survey of multiple sclerosis in the county of South Glamorgan has demonstrated a prevalence of 441/376718 (117/105). Eighty six per cent of the patients (101/105) had definite or probable disease and 14% (16/105) had suspected multiple sclerosis on 1 January 1985. The estimated average incidence is 5*41/105/year for the period 1947-84 and it has risen significantly over four decades. The prevalence is similar to that found in a recent survey from the south east ofEngland but significantly lower than revised figures from Scotland.