Authors’ reply to Upton

Susan Jill Stocks

Research output: Contribution to journalLetter

Abstract

In response to Upton, the Clinical Practice Research Datalink (CPRD) includes limited anonymised information on the characteristics of health professionals.1 2 Sex and role are available and information on consultation volumes can be extracted. Data on GP density, full time equivalents, or other staff characteristics are unavailable. Such data are available nationally but cannot be linked to the practices in CPRD, which are anonymous. In other work applying our prescribing safety indicators to the Salford Integrated Record (SIR), we investigated the effects of whether or not a practice was a training practice and which electronic record system it used (Vision or EMIS).3 Neither of these factors was a significant explanatory variable in the logistic regression model. However, list size was the only measure of GP density accessible in this extract of the SIR.

Regarding Upton’s comments about access to online test results in secondary care, we accept that this is a possibility—this is why we did not include the indicator related to prescribing warfarin without an international normalised ratio test in the composite monitoring indicator. Our earlier work using SIR containing linked primary and secondary care records informed this decision,3 which was reinforced by our observation that excluding the secondary care data from SIR had a large effect on this indicator (data available from authors). Excluding the secondary care data in SIR did not greatly affect the prevalence for the other monitoring indicators, suggesting that—in Salford at least—the information was also held within primary care records (data available from authors). As Upton suggests, clinical decision systems that are independent of the practice clinical computer system (such as EMIS and VISION) can be a complicating factor for certain indicators and might explain some of the variation across practices. Nevertheless, it can be argued that the availability of the relevant information in the patient’s clinical record is important, especially as continuity of care is often fragmented in large modern general practices.
Original languageEnglish
JournalBmj
Volume351
Publication statusPublished - 2015

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