Conclusions
This cohort study demonstrated that introduction of software to obtain
reportable data may lead to significant changes in intervention
potentially without patient benefit. It suggests that all units should
review the software they are using and assess whether the references fit
their population or introduce significant bias that alters clinical
behaviour and potentially increases clinical harm. The study recommends
that for the Plymouth population the UK90 birthweight reference would be
the best fit, but it does not currently have the user friendly tools
needed for everyday clinical use