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Table 2

Distribution, ORs, and 95% CIs for lung cancer according to GSTM1 and GSTT1 genotypes

Genotype	All lung cancer			Squamous and small cell carcinomas			Adenocarcinomas
Genotype		Cases/controls	OR^a (95% CI)	Cases	OR^a (95% CI)	Cases	OR^a (95% CI)
GSTM1
*1	56 /68	1 (ref.)^b	9	1 (ref.)^b	34	1 (ref.)^b
*2	66 /53	1.5 (0.9–2.7)	16	2.3 (0.9–6.1)	31	1.2 (0.6–2.5)
GSTT1
*1	90 /77	1 (ref.)^b	18	1 (ref.)^b	51	1 (ref.)^b
*2	32 /44	0.6 (0.3–1.2)	7	0.6 (0.2–1.7)	14	0.5 (0.2–1.1)
M1 and T1
11	41 /44	1 (ref.)^b	6	1 (ref.)^b	26	1 (ref.)^b
12	15 /24	0.8 (0.3–1.9)	3	0.9 (0.2–4.8)	8	0.8 (0.3–2.5)
21	49 /33	1.8 (0.9–3.5)	12	2.6 (0.8–8.7)	25	1.9 (0.7–3.7)
22	17 /20	0.9 (0.4–2.1)	4	1.4 (0.3–6.9)	6	0.5 (0.2–1.7)

Genotype	All lung cancer			Squamous and small cell carcinomas			Adenocarcinomas
Genotype		Cases/controls	OR^a (95% CI)	Cases	OR^a (95% CI)	Cases	OR^a (95% CI)
GSTM1
*1	56 /68	1 (ref.)^b	9	1 (ref.)^b	34	1 (ref.)^b
*2	66 /53	1.5 (0.9–2.7)	16	2.3 (0.9–6.1)	31	1.2 (0.6–2.5)
GSTT1
*1	90 /77	1 (ref.)^b	18	1 (ref.)^b	51	1 (ref.)^b
*2	32 /44	0.6 (0.3–1.2)	7	0.6 (0.2–1.7)	14	0.5 (0.2–1.1)
M1 and T1
11	41 /44	1 (ref.)^b	6	1 (ref.)^b	26	1 (ref.)^b
12	15 /24	0.8 (0.3–1.9)	3	0.9 (0.2–4.8)	8	0.8 (0.3–2.5)
21	49 /33	1.8 (0.9–3.5)	12	2.6 (0.8–8.7)	25	1.9 (0.7–3.7)
22	17 /20	0.9 (0.4–2.1)	4	1.4 (0.3–6.9)	6	0.5 (0.2–1.7)

^a

Adjusted for gender, age, and center.

^b

ref., reference category.