Resumen

ZANGIROLAMI-RAIMUNDO, Juliana; ECHEIMBERG, Jorge de Oliveira  y  LEONE, Claudio. Research methodology topics: Cross-sectional studies. J. Hum. Growth Dev. [online]. 2018, vol.28, n.3, pp. 356-360. ISSN 0104-1282.  http://dx.doi.org/10.7322/jhgd.152198.

In health the most frequent researches are done in the form of observational studies. In this type of scientific research the researchers do not interfere with the phenomena under study, only observe in a systematic and standardized manner, collecting and recording information, data or materials that spontaneously occur at a particular time of the health-disease process, or along its natural evolution, and then proceed with its description and/or analysis. In observational studies normally four types of study design are used: case series studies, cross-section studies, case-control studies and cohort studies. Thus, cross-sectional studies are very useful in descriptive studies when used in studies that are proposed to be analytical, the results must be interpreted by researchers with good experience in that specific field of knowledge, using a lot of caution and common sense.

Palabras clave : observational study; cross-sectional studies; study design; prevalence.

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