Greenhouse gas emissions associated with severe asthma care in the United Kingdom.

Background: The COP28 Declaration on Climate and Health promotes steps to curb emissions and reduce waste in the health sector.

Objective: To describe and quantify greenhouse gas (GHG) emissions associated with severe asthma (SA) care in the UK, by carbon source and transition status from SA to severe uncontrolled asthma (SUA) and/or regular specialist care (RSC).

Methods: This was a cohort study using routinely collected data from the Clinical Practice Research Datalink Aurum, Hospital Episode Statistics and CO equivalent emissions data.