New multivariate tests for assessing covariate balance in matched observational studies
New multivariate tests for assessing covariate balance in matched observational studies
复制标题
用于评估匹配观察研究中协变量平衡的新多变量测试
DOI:
10.1111/biom.13395
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发表时间:
2020
期刊:
影响因子:
1.9
通讯作者:
Small, Dylan S.
中科院分区:
文献类型:
--
作者:
Chen, Hao;Small, Dylan S.
We propose new tests for assessing whether covariates in a treatment group and matched control group are balanced in observational studies. The tests exhibit high power under a wide range of multivariate alternatives, some of which existing tests have little power for. The asymptotic permutation null distributions of the proposed tests are studied and theP-values calculated through the asymptotic results work well in simulation studies, facilitating the application of the test to large data sets. The tests are illustrated in a study of the effect of smoking on blood lead levels. The proposed tests are implemented in an R package BalanceCheck.
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DOI:
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发表时间:
1985
期刊:
影响因子:
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通讯作者:
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10.1080/01621459.2016.1147356
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