Table 4. The CURB-65 severity score.

Method: Score 1 point for eachof the following features that are present	Confusion (mental testscore 8 new disorientation in person, place, or time)
	BUN > 20 mg/dL
	Respiratory rate 30 breaths/min
	Blood pressure (systolic<90 mm Hg, or diastolic 60 mm Hg)
	Age 65 years
Interpretationof CURB-65 score	0-1: Probably suitable for home treatment;low risk of death
	2: Consider hospital-supervised treatment
	3:Manage in hospital as severe pneumonia; high risk of death