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EVIDENCE-BASED NURSING PRACTICE. STUDY OF THE INFLUENCE OF NEGATIVE FACTORS ON HUMAN HEALTH. PART 3

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Issue: 
1
Year: 
2009

N.V. Torchinsky, A.Yu. Brazhnikov I.M. Sechenov Moscow Medical Academy

An experiment on man is contrary to the basic rule of medical ethics - «do not harm». Therefore studies to reveal risk factors may be organized only as observational. The paper describes the first epidemiological studies performed by by J. Zemmelweis, D. Snow, and D. Goldbeger. The advantages and disadvantages of cohort studies and case-control studies are given.

Keywords: 
evidence-based nursing practice
observational studies
cohort studies
case-control studies
epidemiological surveys



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