Herniated lumbar discs. Data from a casecontrol study on participation in sports and herniated lumbar discs stratified
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Herniated lumbar discs. Data from a case–control study on participation in sports and herniated lumbar discs stratified by smoking status are shown in the following tables. Quantify the effect of “no sports participation” on the risk of disc herniation.
Stratum 1: Smokers Cases Controls No sports participation 36 28 Sports participation 138 113 Stratum 2: Smokers Cases Controls No sports participation 31 20 Sports participation 82 126
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Related Book For
Basic Biostatistics Statistics For Public Health Practice
ISBN: 9781284067583
2nd Edition
Authors: B.Burt Gerstman
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