American journal of public health
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Comparative Study
Comparing hospitals that perform coronary artery bypass surgery: the effect of outcome measures and data sources.
The relative quality of hospital care often is judged by comparing risk-adjusted rates of adverse outcomes. This study evaluated whether hospital quality comparisons are affected by the choice of outcome and the use of administrative data instead of clinical data. ⋯ These results suggest assessing quality of care by the use of administrative data may not be adequate and that quality assessment by the use of clinical data may depend greatly on the outcome chosen.
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Studies of the relationship between hysterectomy use and sociodemographic factors tend to use self-reported data. In the current study, data were collected from a representative sample of US women who have been prospectively followed since 1971. ⋯ Although these two measures of hysterectomy were highly related, more women reported hysterectomy than could be confirmed by hospital records. The two measures showed similar associations between several obstetric and demographic characteristics and hysterectomy status, suggesting that the use of self-reported hysterectomy data does not bias analyses of potentially associated factors.