Table 7.

Comparison of the IgG/IgM antibody detection results using the Trustline kit at the three hospitals

Groups	Beijing Geriatric Hospital		Cangzhou Infectious Disease Hospital		General Hospital of Huabei Oil Field Company		Total
	Positive	Negative	Positive	Negative	Positive	Negative	Positive	Negative
TB	149	92	134	65	102	86	385	243
Controls	35	55	21	108	21	141	77	304
Total	184	147	155	173	123	227	462	547

Control: non-TB + healthy; the χ² test was used to analyze the IgG/IgM antibody-positive rate tested with the Trustline kit. For the case group, χ² = 7.02, p = 0.030, p < 0.05, and for the control group, χ² = 25.99, p = 0.000, p < 0.05