Table 4.

Specificity of four immunodiagnostic kits for clonorchiasis in China

Kit	Negative sera (Control 1) (n = 120)		Healthy sera (Control 2) (n = 50)		Heterologous sera (Control 3) (n = 67)		Total (n = 237)
	No. of false positives	Specificity (%) (95% CI)	No. of false positives	Specificity (%) (95% CI)	No. of false positives	Specificity (%) (95% CI)	No. of false positives	Specificity (%) (95% CI)
T1	16	86.67 (80.58–92.75)	2	96 (90.57–100)	20	70.15 (59.68–81.5)	38	83.97 (79.29–88.64)
T2	12	90 (84.63–95.37)	1	98 (94.12–100)	17	74.63 (64.63–85.37)	30	87.34 (83.11–91.58)
T3	39	67.5 (59.10–75.88)	3	94 (87.42–100)	21	68.66 (58.05–80.18)	63	73.42 (67.79–79.04)
T4	23	80.83 (73.79–87.88)	2	96 (90.57–100)	10	85.07 (76.81–93.77)	35	85.23 (80.72–89.75)