Table 1

CURB65 as a prognostic tool for different outcome measures stratified by CAP aetiology

OutcomeCURB65 scoreP value
012345
n 
 All17328739530912918
 HCAP27651061135410
 Non-HCAP146222289196758
30-day mortality n (%) 
 All6
(3.5)		33
(11.5)		73 (18.5)83
(26.9)		58
(45.0)		7
(38.9)		<0.001
 HCAP0
(0.0)		10
(15.4)		25
(23.6)		36
(31.9)		27 (50.0)3
(30.0)		<0.001
 Non-HCAP6
(4.1)		23
(10.3)		48
(16.6)		47
(24.0)		31
(41.3)		4
(50.0)		<0.001
90-day mortality n (%) 
 All10
(5.8)		45
(15.7)		103
(26.1)		108
(35.0)		65
(50.4)		7
(38.9)		<0.001
 HCAP1
(3.7)		15
(41.5)		28
(39.6)		46
(47.8)		29
(63.0)		3
(30.0)		<0.001
 Non-HCAP9
(6.2)		30
(13.5)		75
(26.0)		62
(31.6)		36
(48.0)		4
(50.0)		<0.001
365-day mortality n (%) 
 All11
(6.4)		69
(24.0)		132
(33.4)		143
(46.3)		73
(56.6)		7
(38.9)		<0.001
 HCAP1
(3.7)		27
(41.5)		42
(39.6)		54
(47.8)		34
(63.0)		3
(30.0)		<0.001
 Non-HCAP10
(6.9)		42
(18.9)		90
(31.1)		89
(45.4)		39
(52.0)		4
(50.0)		<0.001
In-hospital death n (%) 
 All3
(1.7)		25
(8.7)		60
(15.2)		67
(21.7)		48
(37.2)		5
(27.8)		<0.001
 HCAP0
(0.0)		8
(12.3)		17
(16.0)		25
(22.1)		19
(35.2)		1
(10.0)		<0.001
 Non-HCAP3
(2.1)		17
(7.7)		43
(14.9)		42
(21.4)		29
(38.7)		4
(50.0)		<0.001
ICU admission n (%) 
 All12
(6.9)		15
(5.2)		39
(9.9)		13
(4.2)		6
(4.7)		2
(11.1)		0.514
 HCAP2
(7.4)		3
(4.6)		4
(3.8)		2
(1.8)		1
(1.9)		1
(10.0)		0.285
 Non-HCAP10
(6.8)		12
(5.4)		35
(12.1)		11
(5.6)		5
(6.7)		1
(12.5)		0.733
Length of inpatient stay median days (IQR) 
 All3
(1.0–7.0)		6
(3.0–13.0)		8
(4.0–15.0)		9
(5.0–17.0)		8
(4.0–13.5)		8.5
(4.5–14.0)		<0.001
 HCAP5
(2.0–10.0)		9
(4.0–17.5)		9
(5.0–16.3)		8
(4.5–15.5)		8
(5.0–12.0)		7.5
(4.5–17.3)		0.529
 Non-HCAP3
(1.0–7.0)		6
(3.0–11.0)		8
(4.0–14.5)		9.5
(5.0–20.8)		7
(4.0–16.0)		9
(3.8–12.3)		<0.001

  • Comparison of proportions performed using χ2 test for trend. Trends in median length of stay assessed using the Jonckheere-Terpstra test.

  • CAP, community-acquired pneumonia; HCAP, healthcare-associated pneumonia;ICU, intensive care unit.