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. Author manuscript; available in PMC: 2011 Aug 1.
Published in final edited form as: Int J Tuberc Lung Dis. 2011 Feb;15(2):179–iii.

Table 3.

Multivariate models for IFN-γ secretion levels in response to QFT-G stimulants by diabetes, HbA1c or body-mass index

Diabetes HbA1c level Body-mass index
Diabetes* No
diabetes* 		Padj Variable(s)
controlled for
in final
model		 Adjusted β
coefficient		 Padj Variable(s)
controlled
for in final
model		 Adjusted β
coefficient		 Padj Variable(s) controlled for
in final model
ESAT-6 0.4 (2.5) 0.2 (0.7) 0.004 Age, BMI 0.27 0.004 BMI 0.08 0.22 Alcohol, COE, Diabetes
CFP-10 1.4 (3.4) 0.5 (1.4) 0.04 Age, BMI 0.11 0.01 BMI 0.05 0.08 Alcohol, COE, Diabetes
Mitogen 16.9 (17.8) 12.9 (12.8) 0.40 Age, BMI 0.01 0.50 BMI 0.02 0.047 Alcohol, COE, Diabetes
*

Values indicate median IFN-γ level in International Units of IFN-γ/ml (interquartile range); variables initially controlled for in diabetes and HbA1c multivariate models prior to backward elimination included all the variables listed in Table 2 under sociodemographics, risks for TB other than diabetes, and body-mass index; the same variables are controlled for in the body-mass index multivarite model, excluding body-mass index and including diabetes; COE, country of enrollment; Padj, P value adjusted for variables controlled for in the final model