TY - JOUR
T1 - Modification of the computational procedure in Parker and Bregman's method of calculating sample size from matched case-control studies with a dichotomous exposure
AU - Novikov, Ilya
AU - Oberman, Bernice
AU - Freedman, Laurence
PY - 2005/12
Y1 - 2005/12
N2 - Several authors have addressed the problem of calculating sample size for a matched case-control study with a dichotomous exposure. The approach of Parker and Bregman (1986, Biometrics42, 919-926) is, in our view, one of the most satisfactory, since it requires specification of quantities that are often easily available to the investigator. However, its recommended implementation involves a computational approximation. We show here that the approximation performs poorly in extreme situations and can be easily replaced with a more exact calculation.
AB - Several authors have addressed the problem of calculating sample size for a matched case-control study with a dichotomous exposure. The approach of Parker and Bregman (1986, Biometrics42, 919-926) is, in our view, one of the most satisfactory, since it requires specification of quantities that are often easily available to the investigator. However, its recommended implementation involves a computational approximation. We show here that the approximation performs poorly in extreme situations and can be easily replaced with a more exact calculation.
KW - Case-control study
KW - Dichotomous exposure
KW - Matched design
KW - Reye's syndrome
KW - Sample size calculation
UR - http://www.scopus.com/inward/record.url?scp=33644865421&partnerID=8YFLogxK
U2 - 10.1111/j.0006-341x.2005.467_1.x
DO - 10.1111/j.0006-341x.2005.467_1.x
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C2 - 16401288
AN - SCOPUS:33644865421
SN - 0006-341X
VL - 61
SP - 1123
EP - 1126
JO - Biometrics
JF - Biometrics
IS - 4
ER -