Table 2.

Critical Care Interventions and Mortality by CURB-65 Score

	CURB-65 Score (n=2,322)
	0 (n=480)	1 (n=679)	2 (n=826)	3 (n=267)	4 (n=67)	5 (n=3)
ICU Intervention (%, 95%CI)
Any	4.2 (2.6–6.4)	8.0 (6.0–10.2)	15.4 (13.0–18.0)	35.6 (29.8.8–41.7)	67.2 (54.6–78.2)	66.7 (9.4–99.2)
Vasopressor	0.4 (0.0–1.5)	1.9 (1.0–3.3)	5.6 (4.1–7.4)	19.1 (14.6–24.3)	46.3 (34.0–58.9)	33.3 (0.8–90.6)
IPPV	1.9 (0.8–3.5)	4.0 (2.6–5.7)	6.7 (5.0–8.6)	17.2 (12.9–22.3)	44.8 (32.6–57.4)	66.7 (9.4–99.2)
NIPPV	1.7 (0.7–3.3)	1.3 (0.6–2.5)	4.5 (3.2–6.1)	8.2 (6.4–11.6)	6.0 (3.6–14.9)	0 (---)
Insulin gtt	0.2 (<0.1–1.1)	0.9 (0.3–1.9)	0.7 (0.2–1.6)	1.12 (0.2–3.2)	0 (---)	0 (---)
Invasive Catheter	1.9 (0.9–3.5)	4.4 (3.0–6.3)	11.0 (9.0–13.4)	26.6 (21.4–32.3)	56.7 (44.0–68.8)	33.3 (0.8–90.6)
>4L IVF	0.6 (0.1–1.8)	2.2 (1.2–3.6)	1.5 (0.7–2.4)	5.2 (2.8–8.6)	10.5 (4.3–20.3)	33.3 (0.8–90.6)
RRT	1.0 (0.3–2.4)	2.5 (1.5–4.0)	1.6 (0.8–2.7)	1.1 (0.2–3.2)	0 (---)	0 (---)
Mortality (%,95%CI)
All	0.6 (0.1–1.8)	0.6 (0.1–1.5)	5.7 (4.2–7.5)	12.0 (8.3–16.5)	14.9 (7.4–25.7)	33.3 (0.8–90.6)
Admitted to Floor (n=1,692)	0.5 (<0.1–1.7)	0.2 (<0.1–1.0)	2.0 (1.0–3.5)	2.9 (0.6–8.4)	12.5 (0.3–52.7)	100.0 (---)
Admitted to ICU (n=630)	2.0 (<0.1–10.6)	2.3 (0.4–6.6)	15.7 (11.1–21.1)	17.6 (12.1–24.3)	15.3 (7.2–27.0)	0 (---)

^*IPPV = Invasive positive pressure ventilation;

NIPPV = Non-invasive positive pressure ventilation; gtt = continuous infusion; IVF = Intravenous fluid; RRT = Renal replacement therapy