TABLE 7.

C. trachomatis antigens of diagnostic value

Antigens (kDa)	% of individuals with serum antibodies to C. trachomatis antigens (total responses)
	IgG			IgM			IgA
	Patients with urogenital infection (n = 42)	Healthy blood donors (n = 31)	P	Patients with urogenital infection (n = 42)	Healthy blood donors (n = 31)	P	Patients with urogenital infection (n = 42)	Healthy blood donors (n = 31)	P
77	79	6	<0.0001	5	0	NSa	42	3	<0.0001
71	65	0	<0.0001	28	0	0.0011	56	6	<0.0001
64	74	13	<0.0001	33	0	0.0003	56	10	<0.0001
61	84	26	<0.0001	35	10	0.011	88	35	<0.0001
52	81	26	<0.0001	35	0	0.0002	70	26	0.0003
36	79	3	<0.0001	12	0	0.047	65	10	<0.0001
21	81	26	<0.0001	28	3	0.0051	63	0	<0.0001
18	79	48	0.0072	63	10	<0.0001	74	10	<0.0001
13	86	3	<0.0001	51	0	<0.0001	77	3	<0.0001

^aNS, not significant.