Table 1.

Oxford Acute Severity of Illness Score.

Item	Assign score	Item	Assign score
Age (years)		Heart rate (/min)
< 24	0	< 33	4
24–53	3	33–88	0
54–77	6	89–106	1
78–89	9	107–125	3
≥ 90	7	>125	6
Body temperature (°C)		Respiratory rate (/min)
< 33.22	3	< 6	10
33.22–35.93	4	6–12	1
35.94–36.39	2	13–22	0
6.40–36.88	0	23–30	1
36.89–39.88	2	31–44	6
>39.88	6	>44	9
Mean arterial pressure (mmHg)		Length of stay before ICU admission (h)
< 20.65	4	< 0.17	5
20.65–50.99	3	0.17–4.94	3
51.00–61.32	2	4.95–24.00	0
61.33–143.44	0	24.01–311.80	2
>143.44	3	>311.80	1
Emergency surgery prior to ICU admission		Mechanical ventilation on the first day of ICU
No	0	No	0
Yes	6	Yes	9
Urine volume on the first day of ICU (ml)		GCS
< 671		3–7	10
671–1,426		8–13	4
1,427–2,543		14	3
2,544–6,896		15	0
>6,896