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Prototype Prescribing Outlier Dashboard for Lombard Medical Centre

At OpenPrescribing we are piloting a number of data-driven approaches to identify unusual prescribing and collect feedback on this prescribing to inform development of new tools to support prescribers and organisations to audit and review prescribing. These pilot results are provided for the interest of advanced users, although we don't know how relevant they are in practice. There is substantial variation in prescribing behaviours, across various different areas of medicine. Some variation can be explained by demographic changes, or local policies or guidelines, but much of the remaining variation is less easy to explain.

The DataLab is keen to hear your feedback on the results. You can do this by completing the following survey or emailing us at [email protected]. Please DO NOT INCLUDE IDENTIFIABLE PATIENT information in your feedback. All feedback is helpful, you can send short or detailed feedback.

This report has been developed to automatically identify prescribing patterns at a chemical level which are furthest away from “typical prescribing” and can be classified as an “outlier”. We calculate the number of prescriptions for each chemical in the BNF coding system, the count of all prescriptions within that chemical's BNF subparagraph, for prescriptions dispensed between June 2021 and December 2021. We then calculate the ratio of these counts along with the mean and standard deviation of those ratios across all Practices. From this we can calculate the “z-score”, which is a measure of how many standard deviations a given Practice is from the population mean. We then rank your “z-scores” to find the top 10 results where prescribing is an outlier for prescribing higher than its peers and those where it is an outlier for prescribing lower than its peers.

For each outlier chemical, a kernel density estimation plot of all Practice's chemical:subparagraph ratios is provided, with this Practice's ratio overlaid in red.

It is important to remember that this information was generated automatically and it is therefore likely that some of the behaviour is warranted. This report seeks only to collect information about where this variation may be warranted and where it might not, to inform research on this topic. Our full analytical method code is openly available on GitHub here.

This is a new, experimental feature. We'd love to .

Prescribing where Lombard Medical Centre is higher than most

BNF Chemical Chemical Items BNF Subparagraph Subparagraph Items Ratio Mean std Z_Score Plots
Sulfur 1 Topical preparations for acne 323 0.00 0.00 0.00 6.62
Low protein meals 21 Foods for special diets 430 0.05 0.00 0.01 5.50
Tiaprofenic acid 7 Non-steroidal anti-inflammatory drugs 2,102 0.00 0.00 0.00 5.17
Triptorelin embonate 26 Prostate cancer and gonadorelin analogues 68 0.38 0.03 0.07 5.14
Low protein snacks 5 Foods for special diets 430 0.01 0.00 0.00 4.73
Gluten free/low protein drink 3 Foods for special diets 430 0.01 0.00 0.00 4.61
Low protein biscuits 28 Foods for special diets 430 0.07 0.00 0.02 3.95
Safinamide 63 Dopaminergic drugs used in parkinsonism 1,108 0.06 0.00 0.02 3.45
Isocarboxazid 5 Monoamine-oxidase inhibitors (maois) 5 1.00 0.08 0.27 3.43
Ofloxacin 27 Quinolones 75 0.36 0.08 0.10 2.81

Prescribing where Lombard Medical Centre is lower than most

BNF Chemical Chemical Items BNF Subparagraph Subparagraph Items Ratio Mean std Z_Score Plots
Alfentanil hydrochloride 0 Opioid analgesics 6 0.00 0.82 0.38 -2.18
    Fusidic acid 64 Antibacterial preparations also used systemically 132 0.48 0.75 0.14 -1.85
    Ciprofloxacin 46 Quinolones 75 0.61 0.86 0.14 -1.80
    Calcium carbonate 44 Calcium supplements 60 0.73 0.95 0.13 -1.65
    Hydrocortisone 25 Copound haemorrhoidal preparations with corticosteroid 139 0.18 0.57 0.24 -1.60
    Diclofenac diethyl 29 Rubefacients, topical NSAIDS, capsaicin and poultice 1,993 0.01 0.29 0.18 -1.59
    Tacrolimus 0 Corticosteroids and other immunosuppressants 2 0.00 0.63 0.40 -1.58
      Carbomer 940/980 79 Tear deficiency, eye lubricant/astringent 657 0.12 0.34 0.15 -1.48
      Hydrocortisone acetate 15 Topical corticosteroids 1,787 0.01 0.04 0.03 -1.31
      Omeprazole 4,908 Proton pump inhibitors 17,108 0.29 0.50 0.16 -1.30