Search the entire Understanding Patient Data site Search Equal access to bowel cancer treatments in Yorkshire Comparing the uptake of emergency operations for heart attack across England Using data to plan services for people living with and beyond cancer Assessing a new treatment for severe asthma The impact of air pollution on health Using pan-European data to understand how air pollution affects health Disproving the link between the MMR vaccine and autism Investigating trends in diabetes across ethnic groups Understanding why diabetes rates vary between ethnic groups Improving treatments for COPD Real-time monitoring of a new treatment for COPD in Salford