Variation in the distribution of patient-reported outcomes based on different definitions of defining asthma severity.

@article{Erickson2004VariationIT,
  title={Variation in the distribution of patient-reported outcomes based on different definitions of defining asthma severity.},
  author={Steven R. Erickson and Duane M. Kirking},
  journal={Current medical research and opinion},
  year={2004},
  volume={20 12},
  pages={1863-72}
}
OBJECTIVES The purpose of this study was to observe the variation in the distribution of health-related quality of life and work performance scale scores based on using different methods of determining asthma severity. METHODOLOGY Five methods of determining asthma severity were used, including three patient-derived measures (patient perceived severity or PPS; overall symptom-derived severity or OSS; and nocturnal symptom-severity or NSS); and 2 methods using retrospective pharmacy claims… CONTINUE READING

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