A review of RCTs in four medical journals to assess the use of imputation to overcome missing data in quality of life outcomes.
BACKGROUND: Randomised controlled trials (RCTs) are perceived as the gold-standard method for evaluating healthcare interventions, and increasingly include quality of life (QoL) measures. The observed results are susceptible to bias if a substantial proportion of outcome data are missing. The review...
| Главные авторы: | , , , |
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| Формат: | Journal article |
| Язык: | English |
| Опубликовано: |
2008
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