The Decline of Mortality in Ceylon and the Demographic Effects of Malaria Control

Abstract This paper is a reappraisal of the decline of mortality in Ceylon with special reference to the effects of malaria control after 1945. Prior to the Second World War there was an association between the level of mortality and the prevalence of malaria by district in Ceylon. It is shown by the use of a regression model and by geographical analysis that this inter-district differential in mortality can be largely, if not exclusively, ascribed to the inter-district variation in malaria prevalence. Also, the distribution of health services and variations in the levels of nutrition cannot explain the mortality differentials in pre-war Ceylon. There was a rapid decline in mortality during the post-war period which was associated with an island-wide malaria control campaign, an extension of the health services, an improvement in nutrition and some economic development. During this period the previous inter-district differentials of mortality were eliminated and death rates became homogeneous throughout C...