Table 5. Patients separated into two groups on the basis of the presence or absence of IL-4 and their granulomas scored for TNF-α and caseous necrosis.

	Caseous necrosis
TNF-α	0 (negative)	1 (positive)	Total
IL-4-negative patients
0 (negative)	18	0	18
1 (positive)	43	18	61
Total	61	18	79
IL-4-positive patients
0 (negative)	31	0	31
1 (positive)	8	25	31
Total	37	25	62

Individual granulomas were assigned to each quadrant according to the presence (1) or absence (0) of the parameter measured and the total number present in each quadrant is presented.

Significant difference between the two groups of patients. Mantel Haenszel χ² P < 0·001.