Table 2.

Comparison of the mortality rate of the patients with CAP according to CURB-65 criteria ranking and serum levels of procalcitonin during length of hospital stay and 30-days follow-up

Variables	Death during hospital stay	Death during 30-days follow-up	Total death	P-value	P-value
	N (%)	N (%)	N (%)	Hospital stay	30-days follow-up
CURB-65 criterion
0	0 (0)	0 (0)	0 (0)
1	0 (0)	2 (9.52)	2 (9.52)
2	0 (0)	0 (0)	0 (0)	<0.001	<0.001
3	7 (35)	1 (5)	8 (40)
4	2 (28.57)	1 (14.28)	3 (42.85)
5	1 (100)	0 (0)	1 (100)
Serum levels of procalcitonin
<0.5	1 (2)	2 (4)	3 (6)	<0.001	0.01
≥0.5	9 (22.5)	2 (7.5)	11 (27.5)

Abbreviations: CURB-65; CAP, community-acquired pneumonia.