Table 4.

Distribution of smoking status by inflammatory cell infiltrate

Category	Variable	Non-smokers	Smokers	Total	OR (95% CI)	z statistic
Acute inflammatory cells					1.89 (0.97-3.7), P = 0.06	1.881
	Present	22	19	41
	Absent	178	81	259
	Total	200	100	300
Chronic inflammatory cells
	Present	25	33	58	3.34 (1.9-6.22), P = 0.0001	4.104
	Absent	175	67	242
	Total	200	100	300