EN PT


0223/2022 - Size effect in observational studies in oral public health research: how to calculate and interpret.
Tamanho do efeito em estudos observacionais na área de Saúde Bucal Coletiva: importância, cálculo e interpretação.

Author:

• Flávia Martão Flório - Flório, F.M. - <flaviaflorio@yahoo.com>
ORCID: https://orcid.org/0000-0001-7742-0255

Co-author(s):

• Luciane Zanin Souza - Souza, Luciane Zanin - <zaninsouza@yahoo.com.br>
ORCID: https://orcid.org/0000-0003-0218-9313
• Leônidas Marinho dos Santos Júnior - Santos Júnior, L.M. - <leo_marinhos@hotmail.com>
ORCID: https://orcid.org/0000-0002-4685-906X
• Marcelo de Castro Meneghim - Meneghim, M.C. - <meneghim@fop.unicamp.br>
ORCID: https://orcid.org/0000-0003-2673-3627
• Gláucia Maria Bovi Ambrosano - Ambrosano, G.M.B. - <glauciabovi@gmail.com>
ORCID: https://orcid.org/0000-0001-5950-6370


Abstract:

To analyze the scientific literature in oral public health regarding the calculation, presentation, and discussion of the effect size in observational studies. The scientific literature (2015 to 2019) was analyzed regarding: a) general information (journal and guidelines to authors, number of variables and outcomes), b) objective and consistency with the sample calculation presented; c) effect size (presentation, measure used and consistency with data discussion and conclusion). A total of 123 articles66 journals were analyzed. Most of the analyzed articles present a single outcome (74%) and do not mention sample size calculation (69.9%). Among those who did, for 70.3% there was consistency between the sample calculation used and the objective. Only 3.3% of the articles mentioned the term effect size and 24.4% did not consider that in the discussion of the results, despite having calculated it. Logistic regression was the most used statistical methodology (98.4%) and the Odds Ratio was the most used effect size measure (94.3%), although it was not cited and discussed as an effect size measure in most cases of the studies (96.7%). It is concluded that the most part of researchers restrict the discussion of their results only to the statistical significance found in the tested associations.

Keywords:

Data Interpretation, Statistical. Observational Study. Bias.

Content:

Access Issue in Scielo

Other languages:







How to

Cite

Flório, F.M., Souza, Luciane Zanin, Santos Júnior, L.M., Meneghim, M.C., Ambrosano, G.M.B.. Size effect in observational studies in oral public health research: how to calculate and interpret.. Cien Saude Colet [periódico na internet] (2022/Aug). [Citado em 27/09/2024]. Está disponível em: http://cienciaesaudecoletiva.com.br/en/articles/size-effect-in-observational-studies-in-oral-public-health-research-how-to-calculate-and-interpret/18479



Execution



Sponsors