volume 2, issue 1, P157-183 1996
DOI: 10.1017/s1357321700003378
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R.G. Chadburn

Abstract: ABSTRACTThe bias inherent in select mortality investigations where data are grouped by coincident or non-coincident rate intervals is analysed and compared. The key to the bias is shown to be the particular patterns of non-uniform ‘exposure frequency’ inherent in each method. It is shown that the bias using the non-coincident rate intervals is sensitive to a non-uniform distribution of new entrants by age, while the use of coincident rate intervals is sensitive to making appropriate assumptions regarding the d…

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