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Platform news

  1. Improve handling of stale medication codelists in cohort-extractor

    dm+d codes for Virtual Medicinal Products (VMPs) can change over time, with the result that codelists that contain VMP codes can become stale. As a consequence, studies that use patients.with_these_medications() with an old codelist may not have captured all the medication events that the author intended. Until now, the mitigation…

  2. Add rounding instructions to disclosure documentations

    Added instructions regarding rounding to our disclosure control documentation, including an example.

  3. Added support for parameterised study definitions

    Study definitions can now be “parameterised” so they accept values passed in by the action. This allows multiple cohorts with different properties to be generated by a single study definition.

  4. Added support for querying by first and last day of the school year

    Added support for querying by first and last day of the (English) school year.

  5. Added resources management argument to opensafely run command

    Users of the OpenSAFELY platform use the opensafely tool to run their code locally prior to running against the real data. This change adds some options to control the concurrency and memory usage of running actions, which should help users manage their local resource usage.

  6. Added with_at_least_one_day_in_critical_care filter to admitted_to_hospital

    Added ability to filter a patient’s hospital admissions to only those with at least one day in critical care.

  7. Platform status page

    We have rolled out a status page for the platform. Services on this page will be automatically updated if incidents occur.

  8. Clarification about referrals data

    We have clarified in the documentation that data on referrals is incomplete. Any codelists which include referral codes used with patients.with_these_clinical_events are unlikely to return complete data as it is largely held separately in a difficult-to-analyse format. We hope to offer an alternative data source for referrals in due course.

  9. Oxford/AstraZeneca vaccination name change

    The name of the Oxford-AstraZeneca vaccine has changed to COVID-19 Vaccine Vaxzevria 0.5ml inj multidose vials (AstraZeneca). To continue to access data for these vaccines, all users will need to update study definitions appropriately. Link to documentation…

  10. UK Renal Registry added to OpenSAFELY

    Added support for querying the UK Renal Registry

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