Multiple parameter evidence synthesis-a potential solution for when information on drug use and harm is in conflict.

The authors reflect on the use of multiple parameter evidence synthesis (MPES) to estimate people who inject drugs (PWID) and drug use. The authors state that diverse information sources can be integrated by MPES into a single coherent model which was said to be similar to systematic reviews. The authors state that MPES was also used for other infections including chlamdyia and toxoplasmosis.