Expressing medicine side effects: assessing the effectiveness of absolute risk, relative risk, and number needed to harm, and the provision of baseline risk information.

@article{Berry2006ExpressingMS,
  title={Expressing medicine side effects: assessing the effectiveness of absolute risk, relative risk, and number needed to harm, and the provision of baseline risk information.},
  author={Dianne C. Berry and Peter Knapp and Theo Raynor},
  journal={Patient education and counseling},
  year={2006},
  volume={63 1-2},
  pages={89-96}
}
OBJECTIVE To assess the effectiveness of absolute risk, relative risk, and number needed to harm formats for medicine side effects, with and without the provision of baseline risk information. METHODS A two factor, risk increase format (relative, absolute and NNH)xbaseline (present/absent) between participants design was used. A sample of 268 women was given a scenario about increase in side effect risk with third generation oral contraceptives, and were required to answer written questions… CONTINUE READING

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