Table 5. Correlation (r) and p-values between protein levels in QFT supernatants.

Parameters	HC		LTBI		ATB
	n = 91		n = 52		n = 95
	r	p	r	p	r	p
IL-18 ~ IL-18BP	-0.164	0.021	-0.006	0.943	0.148	0.033
IL-18 ~ IL-37	-0.136	0.056	-0.006	0.949	-0.055	0.427
IL-18 ~ IFN-γ	-0.139	0.051	-0.075	0.430	0.011	0.867
IL-18BP ~ IL-37	0.042	0.550	-0.252	0.008	-0.053	0.446
IL-18BP ~ IFN-γ	0.023	0.742	-0.020	0.831	0.016	0.816
IL-37 ~ IFN-γ	0.257	<0.001	-0.092	0.335	0.023	0.733

ATB–active tuberculosis, HC- healthy controls, LTBI–latent M.tb infection