Publications by authors named "Helmer de Jesus Zapata-Ossa"
[Cluster sampling in health surveys].
Helmer de Jesús Zapata-Ossa Angela M Cubides-Munévar María C López Elisa M Pinzón-Gómez Paola A Filigrana-Villegas
Rev Salud Publica (Bogota)
February 2011
Objective: Describing how the cluster sampling statistical technique can be applied to health surveys.
Methods: The article describes the most important aspects for each methodological step, emphasising cluster sampling's foundations. It was applied to a population of around 100,000 inhabitants from commune 18 in Cali.