CRB-65

Lim WS, van der Eerden MM, Laing R, et al. Defining community acquired pneumonia severity on presentation to hospital: an international derivation and validation study. Derivation of CURB-65; CRB-65 is the same score without the urea.

Bauer TT, Ewig S, Marre R, Suttorp N, Welte T; CAPNETZ Study Group. CRB-65 predicts death from community-acquired pneumonia. In the German CAPNETZ cohort, CRB-65 and CURB predicted death comparably in hospital and out-patient settings; CRB-65 was available far more often because no urea is needed.

NICE NG250, Pneumonia: diagnosis and management (recommendations 1.2.1–1.2.3, box 1): 30-day risk of death 0 points low (< 1 %), 1–2 intermediate (1–10 %), 3–4 high (> 10 %), used together with clinical judgement; place of care is a shared decision per the guideline and local pathway.