Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
1983-10-28
pubmed:abstractText
In 1980, the Occupational Safety and Health Administration asserted that "non-positive human studies" would be considered in reviews of evidence only if in a study the "group of exposed subjects was large enough for an increase in cancer incidence of 50% above that in unexposed controls to have been detected at any of the predicted sites." The concepts of statistical testing and power in occupational mortality studies are reviewed, and studies published in two prominent occupational health journals in 1979 and 1980 are analyzed in terms of their power. A large proportion of standardized mortality ratio studies have a low probability of detection of relative risks of the order of 1.5.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0096-1736
pubmed:author
pubmed:issnType
Print
pubmed:volume
25
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
603-8
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
Sample size in occupational mortality studies.
pubmed:publicationType
Journal Article