Recording of adverse events in English general practice: analysis of data from electronic patient records

Carmen Tsang, Azeem Majeed, Ricky Banarsee, Shamini Gnani, Paul Aylin

Abstract


Background Although the majority of patient contact within the UK's National Health Service (NHS) occurs in primary care, relatively little is known about the safety of care in this setting compared to the safety of hospital care. Measurement methods to detect iatrogenic diseases in primary care require extensive development. Routinely collected data have been successfully applied to develop patient safety indicators in secondary care. Given the availability of electronic health data in primary care, we explored the potential to build adverse event screening tools using computerised medical record systems.
Objective To identify the rate and types of adverse events that might be recorded in primary care through routinely collected data. The findings will inform the development of administrative databased indicators to screen for patient harm arising from primary care contact.
Method Descriptive analyses were performed on data extracted from the clinical information management systems (CIMS) at NHS Brent. The data were explored according to age, sex and ethnicity of patients. Potential or actual adverse events were identified by mapping to three Read code chapters.
Results Records from the calendar year 2007 were available for 69 682 registered patients from 25 practices, consisting of 680 866 consultations. A number of adverse events could be detected through terms contained in certain chapters of the Read code system. These events include injuries due to surgical and medical care (0.72 cases of per 1000 consultations) and adverse drug reactions (1.26 reactions per 1000 consultations). Patterns in the rate of harm among patients fromdifferent ethnic groups tended to reflect the proportion of the respective groups in the overall Brent population, with more injuries occurring among patients of white and Asian ethnicities.
Conclusion These findings suggest that there is scope to develop more accurate and reliable means of safety surveillance in general practice using data obtained from electronic patient records.

Keywords


computerised; iatrogenic disease; medical errors; medical records systems; primary health care; safety management

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DOI: http://dx.doi.org/10.14236/jhi.v18i2.761

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