Identifying the types of missingness in quality of life data from clinical trials.

@article{Curran1998IdentifyingTT,
  title={Identifying the types of missingness in quality of life data from clinical trials.},
  author={Desmond Curran and Marisa Bacchi and S. F. Hsu Schmitz and Geert Molenberghs and Richard Joel Sylvester},
  journal={Statistics in medicine},
  year={1998},
  volume={17 5-7},
  pages={739-56}
}
This paper discusses methods of identifying the types of missingness in quality of life (QOL) data in cancer clinical trials. The first approach involves collecting information on why the QOL questionnaires were not completed. Based on the reasons provided one may be able to distinguish the mechanisms causing missing data. The second approach is to model the missing data mechanism and perform hypothesis testing to determine the missing data processes. Two methods of testing if missing data are… CONTINUE READING

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