Journal
JOURNAL OF SURGICAL RESEARCH
Volume 144, Issue 1, Pages 158-170Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jss.2007.02.053
Keywords
research/statistics and numerical data; data interpretation/statistical; models; statistical; review
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Funding
- NATIONAL CENTER FOR RESEARCH RESOURCES [K23RR020020] Funding Source: NIH RePORTER
- NCRR NIH HHS [K23 RR020020, K23 RR020020-02, 5K23RR20020-2] Funding Source: Medline
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To critically evaluate the literature and to design valid studies, surgeons require an understanding of basic statistics. Despite the increasing complexity of reported statistical analyses in surgical journals and the decreasing use of inappropriate statistical methods, errors such as in the comparison of multiple groups still persist. This review introduces the statistical issues relating to multiple comparisons, describes the theoretical basis behind analysis of variance (ANOVA), discusses the essential differences between ANOVA and multiple t-tests, and provides an example of the computations and computer programming used in performing ANOVA. (c) 2008 Elsevier Inc. All rights reserved.
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