Prevalence of COPD in five Colombian cities situated at low, medium, and high altitude (PREPOCOL study).

@article{Caballero2008PrevalenceOC,
  title={Prevalence of COPD in five Colombian cities situated at low, medium, and high altitude (PREPOCOL study).},
  author={Andr{\'e}s Caballero and Carlos A Torres-Duque and Claudia Jaramillo and Fabio Bol{\'i}var and Fernando Riveros Sanabria and Patricia Osorio and Carlos Orduz and Diana P Guevara and Dar{\'i}o Maldonado},
  journal={Chest},
  year={2008},
  volume={133 2},
  pages={343-9}
}
BACKGROUND The prevalence of COPD in Colombia is unknown. This study aimed to investigate COPD prevalence in five Colombian cities and measure the association between COPD and altitude. METHODS A cross-sectional design and a random, multistage, cluster-sampling strategy were used to provide representative samples of adults aged >or= 40 years. Each participant was interviewed (validated Spanish version of the Ferris Respiratory Questionnaire) and performed spirometry before and after 200… CONTINUE READING
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