TABLE 2.

Detection of ail and foxA genes by the use of real-time PCR and conventional PCR^a

Real-time PCR result	No. of samples:			No. of samples:
	With indicated conventional PCR result for ail gene		Total	With indicated conventional PCR result for foxA gene		Total
	+	−		+	−
+	57	79	136	136	61	197
−	0	92	92	1	30	31
Total	57	171	228	137	91	228

^aχ²_{(ail gene)} = 51.4 > χ²_{0.05, 1} = 3.84; χ²_{(foxA gene)} = 48.4 > χ²_{0.05, 1} = 3.84.