BMC medical research methodology
Cluster minimal sufficient balance (CMSB): an efficient covariate balancing randomization method for cluster randomized trials.
Jiaxin Cai, Shanshan Suo, Valirie Ndip, Carole Khairallah, Binyan Zhang, Lingxia Zeng, Hong Yan, Fang Shao, Tao Chen, Chao Li
Published: 202610.1186/s12874-025-02758-0
Abstract
BACKGROUND: Cluster randomized trials (CRTs) require balanced baseline covariates to yield unbiased estimates of treatment effects. Existing approaches such as constrained randomization can improve balance but may compromise allocation randomness. We…
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