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Administrative Data Should Be Questioned.

Hospital discharge data (=administrative data) have been used for some time in order to measure the quality of hospital treatments. In this context, Mansky in a recently published review article pointed out the good validity of administrative data. By contrast, a systematic qualitative review found that the sensitivity of quality indicators—drawn from administrative data—is usually poor (1). This is also the case for risk scores, which take into account a number of comorbidities.