Appropriate statistical methods were infrequently used in cluster-randomized crossover trials.

@article{Arnup2016AppropriateSM,
  title={Appropriate statistical methods were infrequently used in cluster-randomized crossover trials.},
  author={Sarah Jane Arnup and Andrew B. Forbes and Brennan C Kahan and Katy E Morgan and Joanne E. Mckenzie},
  journal={Journal of clinical epidemiology},
  year={2016},
  volume={74},
  pages={
          40-50
        }
}
OBJECTIVE To assess the design and statistical methods used in cluster-randomized crossover (CRXO) trials. STUDY DESIGN AND SETTING We undertook a systematic review of CRXO trials. Searches of MEDLINE, EMBASE, and CINAHL Plus; and citation searches of CRXO methodological articles were conducted to December 2014. We extracted data on design characteristics and statistical methods for sample size, data analysis, and handling of missing data. RESULTS Ninety-one trials including 139 end point… CONTINUE READING