Indian Journal of PsychiatryIndian Journal of Psychiatry
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COMMENTARY
Year : 2007  |  Volume : 49  |  Issue : 2  |  Page : 129-131

Confounding


Department of Psychopharmacology, National Institute of Mental Health and Neurosciences, Bangalore - 560 029, India

Correspondence Address:
Chittaranjan Andrade
Department of Psychopharmacology, National Institute of Mental Health and Neurosciences, Bangalore - 560 029
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0019-5545.33263

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Background : Confounding is a statistical concept that is important to all researchers. Materials and Methods: The concept of confounding is explained with the help of an amusing but true example. Simple explanations about and examples of confounding are provided. Methods to deal with confounding are detailed and their applications and disadvantages are examined. Conclusions : Attention to confounding is necessary at the time of study design as well as during the statistical analysis of data. The failure to identify and control for confounding can result in the faulty interpretation of study outcomes.



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