正确理解与阴性结果试验相关的统计学概念

doi:10.3736/jcim20110504

Journal of Chinese Integrative Medicine ›› 2011, Vol. 9 ›› Issue (5): 487-490.doi: 10.3736/jcim20110504

• Methodology • Previous Articles Next Articles

Statistical concepts related to negative clinical results

Wei Chen¹, Guo-hua Zheng², Jian-ping Liu²()

1. Center for Evidence-based Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
2. Research Institute of Traditional Chinese and Western Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350108, Fujian Province, China

Received:2011-03-01 Accepted:2011-03-11 Online:2011-05-20 Published:2011-05-15
Contact: Liu Jian-ping E-mail:jianping_l@hotmail.com

Abstract

It is a trend that clinical researchers overemphasize on hypothesis testing and the P value. However, P value has some limitations in the presentation of study results. Power is a tool for study design and results explanation, especially for negative results. Confidence interval contains more information for clinical results than P value. P value, power, and 95% confidence interval should be provided in the clinical reports to facilitate the interpretation of the results.

Key words: negative results, P value, power, confidence interval

Wei Chen, Guo-hua Zheng, Jian-ping Liu. Statistical concepts related to negative clinical results. Journal of Chinese Integrative Medicine, 2011, 9(5): 487-490.

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Statistical concepts related to negative clinical results

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