Analysis of extant clinical records is receiving increased emphasis in nursing investigations. Appropriate use of this approach to patient research requires careful attention to data management, including assessment of reliability. Percent agreement, phi, and Kappa all serve as estimates of interrater reliability in the analysis of data. Kappa has particular merit as a measure of interrater reliability; it also has some peculiar problems in implementation and interpretation. The nature and computation of Kappa and its application in analysis of clinical data are discussed.
Health-risk behaviors captured by birth certificate data are thought to be underreported for all age groups, and the prevalence of health-risk behaviors in this sample of pregnant teens was often greater than the most recent national trend data available. The magnitude of the effects of health-risk behaviors on pregnancy outcomes necessitates improved data gathering to enhance planning and evaluation of research and interventions at community, system, and individual/family levels.
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