Table 6.

SMART-COP score of 3 or more points identifies 92% of those who will require intensive respiratory support

Variable	Points
Systolic arterial pressure <90 mm Hg	2
Multi-lobar involvement on chest radiography	1
Albumin level <35 g litre−1	1
Respiratory rate	1
50 yr and younger: ≥25 bpm
Older than 50 yr: ≥30 bpm
Tachycardia (≥125 beats min−1)	1
New onset confusion	1
Oxygen level	2
50 yr and younger: $P{\text{a}}_{{\mathrm{O}}_2}$<70 mm Hg, oxygen saturation ≤93%, or $P{\text{a}}_{{\mathrm{O}}_2}/F{\text{I}}_{{\mathrm{O}}_2}$ ratio <333
Older than 50 yr: $P{\text{a}}_{{\mathrm{O}}_2}$<60 mm Hg, oxygen saturation ≤90%, or $P{\text{a}}_{{\mathrm{O}}_2}/F{\text{I}}_{{\mathrm{O}}_2}$ ratio <250
Arterial pH<7.35	2