[Health measurement: theoretical and methodologic perspectives]

Abstract

The present article consists of a revision of the different ways health has been measured and was ordered according to the historic evolution of the health concept and conditions. The development of health measures has paralleled the changes occurred in the epidemiologic profiles and the many refinements in the conceptualization and interpretation of health. Along the years, the meaning of health has become increasingly wider. Initially, only infectious diseases were considered; later, degenerative processes were included. Nowadays, health is viewed as multifactorial and as a reflection of the life style and conditions. This essay contains a description of the theoretical postulates upon which the different health measures are based, their strategies and some of their limitations. It is divided into five main sections: morbidity, disability, and mortality indicators; measures of the health of the populations; sociomedical indicators, including measures of physical and mental health, as well as of the social component of health, positive health indicators and, finally a revision of measures of health need. It is of the utmost importance to be aware of the perspective used in the different public health research efforts since it has direct repercussions for the planning and evaluation of the health services and, in particular, for the quality of health care.