Power and sample size for testing homogeneity of relative risks in prospective studies

被引：12

作者：

Nam, JM ^{[1
]}

机构：

[1] NCI, Biostat Branch, Bethesda, MD 20892 USA

来源：

BIOMETRICS | 1999年 / 55卷 / 01期

关键词：

power; sample size; score test; testing homogeneity of relative risks; prospective studies;

D O I：

10.1111/j.0006-341X.1999.00289.x

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Power and sample-size formulas for testing the homogeneity of relative risks using the score method are presented. The homogeneity score test (Gart, 1985, Biometrika 72, 673-677) is formally equivalent to the Pearson chi-square test, although they look different. Results of this paper may be useful in assessing the validity of the model of a common relative risk before combining several 2 x 2 tables or in designing a prospective study for detecting heterogeneity of relative risks.

引用

页码：289 / 293

页数：5

共 19 条

[1]

[Anonymous], 1989, SELECTED PAPERS C R

[2]

Breslow NE, 1980, STAT METHODS CANC RE, V1, DOI DOI 10.1097/00002030-199912240-00009

[3] SOME METHODS FOR STRENGTHENING THE COMMON X2 TESTS [J].