Exact(5)
Only two data elements, "Diagnosis" and "Problem-at-referral," contained free text values that were relevant.
Two data elements consistently relied upon are the International Classification of Disease ICDdiagnosticticodeses and ED chief complaints (CC).
When having registered some of the required data elements (27 hospitals), eight hospitals indicated to miss one or two data elements, one hospital missed three data elements and another hospital reported to miss ten of the required twelve data elements.
When at least one data element was missing (data element unavailable; n = 16), eight hospitals indicated to miss one or two data elements, four hospitals missed three or four data elements and four hospitals missed five or six data elements.
The validity of using these two data elements, typically extracted from administrative databases or patient charts, to define the time of stroke onset and to assign exposure are critical in this field of research as air pollutant concentrations are temporally and spatially variable.
Similar(55)
In the U.S. alone, just one of the nine data brokers profiled in the FTC report "holds information on more than 1.4 billion consumer transactions and 700 billion data elements and another adds more than 3 billion new data points to its database each month".
District 2 performed better than the others in terms of reporting on all six data elements (Figure 2b).
Across all six data elements, errors (as defined above) were found to occur between 0.4% and 8.8% of the time.
For the six data elements studied, data was missing from the clinics' registers between 4.5% and 41.0% of the time (figure 3).
Across all six data elements, the DHIS value deviated on average by 75.2% from the corresponding values found in the clinics' registers.
Analysis of all six data elements from 316 sites reported over 12 months to the DHIS showed that the data were complete only half the time (50.3%) (Figure 2a).
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com