Thorax (BMJ Journals) have recently published an study looking at the positive impact NEWS2 has had in the management of patients with COPD exacerbation. To quote:

‘NEWS2 is superior to the original NEWS, but using the second oxygen scale within NEWS2 (target oxygen saturations 88%–92%) in all patients with COPD exacerbation substantially reduces false alerts without increased risk.’

The full article can be viewed here: https://thorax.bmj.com/content/74/10/941