Evaluating the heterogeneous effect of a modifiable risk factor on suicide: The case of vitamin D deficiency.
Jose R ZubizarretaJohn C UmhauPatricia A DeusterLisa A BrennerAndrew J KingMaria V PetukhovaNancy A SampsonBoris TizenbergSanjaya K UpadhyayaJill A RachBeiselElizabeth A StreetenRonald C KesslerTeodor T PostolachePublished in: International journal of methods in psychiatric research (2021)
In addition to describing best practices in using the machine learning methods considered here, we close with a discussion of broader design and analysis issues in planning an observational study to investigate heterogeneous effects of a modifiable risk factor.