Abstract

BELLO P, León Darío  and  MARTINEZ C, Sandra. A methodology of time series for the health field -a practical case. Rev. Fac. Nac. Salud Pública [online]. 2007, vol.25, n.2, pp.118-122. ISSN 0120-386X.

During the last years time series have had developments and important applications in the field of health. The present article shows a methodology tried in previous studies and outlines the steps in the analysis of time series for a classical approach. The objective allows identifying a good model of prognosis by using smoothing methods: exponential, simple, Holt and Winter. In addition, the validation of the assumptions of the residuals is made managing to give trustworthiness to the results of the found model. In order to apply the procedure, data of number of outpatient appointments performed at the University of Antioquia Health Service from April 2001 to September 2005 were used.

Keywords : time series studies; randomness; trends; outpatient clinics.

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