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Tests of model-dictated eligibility lawfulness (QCovid score example)

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Identically, models cannot excuse discrimination that is substantiated in law. The simple clinical lawfulness tests above apply to the lawfulness of model driven decision-making. Replacing the word “clinician” with “model” in the tests arrives at identical conclusions: a priori assumption of ineligibility/insufficient eligibility of patient cohorts or individuals is unlawful.

Identically, models cannot excuse discrimination that is substantiated in law. Model-driven scoring replicates, scales and accelerates decision-making. It does not replace the clinician, particularly where reasonable clinical limitations are highlighted

The purpose of model driven scoring in any medical context is to replicate, scale and accelerate decision-making. It does not replace the clinician – it is applied by medical practice.

Where a model is known not to account for either medical, policy or requirements, its application must be selective to be lawful. Where model limitations have been communicated, the tenability of delaying or obfuscating terminal obligation/liability is negated further.

Example: Q Model covid risk assessment tool and Group 6 vaccination scheme eligibility

As demonstrated regarding tests of clinical judgement unlawfulness, medical requirements dictated by Joint Committee on Vaccination and Immunisation (JCVI) policy cannot be applied in a way that substantiates incidents of discrimination in law or breaches duties of care.

As a specifically relevant example, the Q Model tool made available to UK specifically predicts probability of death and hospitalisation. It does not account for exacerbation of existing illness and thus does not account for:

  • the Green and JCVI requirement of clinical
  • the consensus literature specificities outlined above regarding the impact of viral infection, the unusual severity of or its prevalence
  • the requirement that clinical avoids discrimination in order to be lawful
  • the requirement that clinical accounts for duties of care in order to be lawful

These tests are related to the tests of clinical judgement lawfulness: