Simpson's paradox: how performance measurement can fail even with perfect risk adjustment.

@article{Mheen2014SimpsonsPH,
  title={Simpson's paradox: how performance measurement can fail even with perfect risk adjustment.},
  author={Perla J. Marang-van de Mheen and Kaveh G. Shojania},
  journal={BMJ quality & safety},
  year={2014},
  volume={23 9},
  pages={701-5}
}
To cite: Marang-van de Mheen PJ, Shojania KG. BMJ Qual Saf 2014;23:701–705. Efforts to measure quality using patient outcomes—whether hospital mortality rates or major complication rates for individual surgery—often become mired in debates over the adequacy of adjustment for case-mix. Some hospitals take care of sicker patients than other hospitals. Some… CONTINUE READING