TABLE 1.

Concentrations of CRP in human respiratory tract secretions

Sample	Clinical diagnosisa	CRP (μg/ml)b	Total protein (mg/ml)	CRP (μg)/total protein (mg)
Nasal ASF
0513		0.84	2.80	0.30
0225		0.88	6.34	0.14
0320		0.15	2.40	0.06
0845		0.88	NDc	ND
1207		<0.05	0.70	ND
Mean ± SEM		0.56 ± 0.25	3.06 ± 1.2	0.17 ± 0.07
Sputum
0514	Acute bronchitis	0.20	3.50	0.06
0214	Acute bronchitis	2.5	5.95	0.42
3724	Chronic bronchitis	0.17	2.50	0.07
4463	Chronic bronchitis	3.20	4.54	0.71
9051	Chronic bronchitis	24.0	286	0.08
1039	NTHi pneumonia	1.8	2.85	0.63
8055	NTHi pneumonia	4.80	13.63	0.35
8407	NTHi pneumonia	12.0	6.89	1.74
5703	NTHi pneumonia	12.0	8.66	1.39
6000	NTHi pneumonia	2.8	18.52	0.15
6287	NTHi pneumonia	20.0	8.73	2.29
0713	NTHi pneumonia	42.0	17.4	2.41
Mean ± SEM		10.45 ± 3.6	31.6 ± 12.3	0.86 ± 0.25

^aThe diagnosis of nontypeable H. influenzae (NTHi) pneumonia was based on previously described criteria (25). 

^bCalculated by Western analysis. 

^cND, not determined.