Description of the data source, numerator, denominator, survey questions, and other relevant details about the national estimate.
Measuring national rates of emergency department (ED) visits for adverse events from medications requires using two data sources. Stable annual national estimates of ED visits for adverse events due to specific medications may be calculated using NEISS-CADES, but NEISS-CADES does not collect prescribing data. N(H)AMCS data can be used to calculate national estimates of medication prescribing, but N(H)AMCS data are not robust enough to calculate stable annual estimates of ED visits for adverse events to specific medications.
To calculate the numerator: The cause/mechanism of each adverse drug event visit is coded as allergic reaction, side-effect or overdose. Only ED visits due to overdoses are included in the numerator. In addition, up to two drugs may be implicated in the adverse event. If a narrow-therapeutic-index medication (digoxin, phenytoin, carbemazepine, divalproex, lithium) appears as an implicated drug, the associated ED visit is included in the numerator. To calculate the denominator: Up to eight drugs may be identified as prescribed or continued during the outpatient visit. If a narrow-therapeutic-index medication (digoxin, phenytoin, carbemazepine, divalproex, lithium) appears as a prescribed or continued drug, the associated outpatient visit is included in the denominator.
Any change to the objective text, baseline, target, target-setting method or data source since the Healthy People 2020 launch.
The original baseline was revised from 9.2 to 8.9 due to a change in the baseline year from 2007 to 2006-2007. The target was adjusted from 8.3 to 8.0 to reflect the revised baseline using the original target-setting method.
Additional resources about the objective.
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