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Use of Data Analysis Methods in Dental Publications: Is There Evidence of a Methodological Change?

Author

Listed:
  • Pentti Nieminen

    (Medical Informatics and Data Analysis Research Group, University of Oulu, 90014 Oulu, Finland)

  • Hannu Vähänikkilä

    (Infrastructure of Population Studies, Faculty of Medicine, University of Oulu, 90014 Oulu, Finland)

Abstract

Objectives: To evaluate how data analysis methods in dental studies have changed in recent years. Methods: A total of 400 articles published in 2010 and 2017 in five dental journals, Journal of Dental Research, Caries Research, Community Dentistry and Oral Epidemiology, Journal of Dentistry, and Acta Odontologica Scandinavica, were analyzed. The study characteristics and the reporting of data analysis techniques were systematically identified. Results: The statistical intensity of the dental journals did not change from 2010 to 2017. Dental researchers did not adopt the data mining, machine learning, or Bayesian approaches advocated in the computer-oriented methodological literature. The determination of statistical significance was the most generally used method for conducting research in both 2010 and 2017. Observational study designs were more common in 2017. Insufficient and incomplete descriptions of statistical methods were still a serious problem. Conclusion: The stabilization of statistical intensity in the literature suggests that papers applying highly computationally complex data analysis methods have not meaningfully contributed to dental research or clinical care. Greater rigor is required in reporting the methods in dental research articles, given the current pervasiveness of failure to describe the basic techniques used.

Suggested Citation

  • Pentti Nieminen & Hannu Vähänikkilä, 2020. "Use of Data Analysis Methods in Dental Publications: Is There Evidence of a Methodological Change?," Publications, MDPI, vol. 8(1), pages 1-14, February.
    • Handle: RePEc:gam:jpubli:v:8:y:2020:i:1:p:9-:d:317525
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    References listed on IDEAS

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    1. Lauren D Arnold & Melissa Braganza & Rondek Salih & Graham A Colditz, 2013. "Statistical Trends in the Journal of the American Medical Association and Implications for Training across the Continuum of Medical Education," PLOS ONE, Public Library of Science, vol. 8(10), pages 1-6, October.
    2. Pentti Nieminen & Jorma I Virtanen & Hannu Vähänikkilä, 2017. "An instrument to assess the statistical intensity of medical research papers," PLOS ONE, Public Library of Science, vol. 12(10), pages 1-15, October.
    3. Hannu Vähänikkilä & Jorma I. Virtanen & Pentti Nieminen, 2016. "How do statistics in dental articles differ from those articles published in highly visible medical journals?," Scientometrics, Springer;Akadémiai Kiadó, vol. 108(3), pages 1417-1424, September.
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