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Free Content Trend and seasonality of tuberculosis in Spain, 1996–2004 [Short Communication]

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This study aimed to analyse the trend and seasonality of tuberculosis (TB) in Spain over the past decade. Weekly TB incidence was calculated using data from the National Surveillance Network for the period 1996–2004. Secular trends and seasonal components were estimated using time-series analysis (least-squares method and Fourier transformation). A decline in incidence was observed, from 23.4 cases per 100000 population in 1997 to 15.1 in 2004, and an annual cycle peaking in June was detected. Time-series analyses are necessary for detecting changes in the epidemiological pattern of TB in Spain, and it should be the first step towards the development of a predictive model.

Keywords: Spain; seasonal variations; trend; tuberculosis epidemiology

Document Type: Short Communication

Affiliations: 1: Servicio de Medicina Preventiva y Salud Pública, Hospital Clinico Universitario De Valladolid, Valladolid, Spain 2: Servicio de Medicina Preventiva, Hospital Clinico San Carlos, Madrid, Spain 3: Centro Nacional de Epidemiologia, Instituto de Salud Carlos III, Madrid, Spain 4: Servicio de Microbiologia, Hospital Clinico Universitario de Valladolid, Valladolid, Spain 5: Center for Tuberculosis Research, Johns Hopkins University, Baltimore, Maryland, USA

Publication date: 2008-02-01

More about this publication?
  • The International Journal of Tuberculosis and Lung Disease publishes articles on all aspects of lung health, including public health-related issues such as training programmes, cost-benefit analysis, legislation, epidemiology, intervention studies and health systems research. The IJTLD is dedicated to the continuing education of physicians and health personnel and the dissemination of information on tuberculosis and lung health world-wide.

    Certain IJTLD articles are selected for translation into French, Spanish, Chinese or Russian. They are available on the Union website

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