Table 3.

Association between serum level of CRP and CURB-65 criteria in the patients with CAP

CURB-65 criteria	Mean of CRP (mg/L)	Standard error	P-value
0	34.66	11.47
1	51.94	9.24
2	69.34	7.87	0.007
3	114.31	12.23
4	91.5	24.46
5	108	–

Abbreviations: CURB-65; CAP, community-acquired pneumonia; CRP, C-reactive protein.