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A faulty production line

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GPs to develop list of unnecessary interventions under scheme to tackle overtreatment


We need to review the way we assess risk and benefit. Relative risk reduction (RRR) is a poor discriminator. We should always consider absolute risk reduction (ARR). Thus a 50% risk reduction (RRR) sounds great but if it is actually a change from 2 per million to 1 per million (ARR of 1 per million) it doesn't look so impressive. Many of the interventions supported by CCT have quite modest ARR even though RRR is impressive. Quite why it has taken the great and good so long to draw attention to this fairly obvious point is an equally important question to ask. Did they just swallow everything produced by the EBM lobby without thinking about it? If so what are they doing in their "influential" positions and how did they ever get there? I hope someone will ask them.

Posted date

15 May 2015

Posted time