Does the analysis take into account the benefits that statins may give in other areas? For instance, suppose that a particular person had a doubled risk of PD if he took statins, but it halved his risk of heart disease.

As always when considering a course of action for a particular person a nuanced approach is needed, focussing on the individual, taking into account genetics, his medical history and that of his family, and the environment in which he lives and works.

John