Table 3.

Genotypic frequencies of RAD51/G135C and ATM/P1054R genotypes in 114 gas station workers and 115 controls

	RAD51/G135C			ATM/P1054R
	GG	GC	CC	CC	GC	GG
Group 1	59 (64.1%)	29 (31.5%)	4 (4.3%)	70 (79.5%)	18 (20.5%)	0 (0.0%)
Group 2	9 (40.9%)	10 (45.5%)	3 (13.6%)	19 (86.4%)	2 (9.1%)	1 (4.5%)
Total of workers N (%)	68 (59.6%.)	38 (33.3%)	8 (7.0%)	89 (80.9%)	20 (18.2%)	1 (0.9%)
Controls N (%)	88 (72.2%)	24 −(21.1%)	2 (1.8%)	92 (82.1%)	20 (17.9%)	0 (0.0%)
Total	156 (68.4%)	63 (27.6%)	9 (3.9%)	181 (81.5%)	40 (18.0%)	1 (0.4%)
	P value			P value
Hardy–Weinberg Equilibrium	0.322			0.632
Total workers × controls	0.011			0.930
Group 1 × Group 2	0.074			0.092

Polymorphisms assessment for CA detection
	RAD51/G135C	ATM/P1054R	RAD51/G135C + ATM/P1054R
Specificity (%)	87 (76–94)	79 (68–87)	82 (75–88)
Sensitivity (%)	28 (16–43)	14 (16–43)	24 (14–35)

P value < 0.05 was considered significant

Descriptive measures: a (± b), a = average and b = standard deviation. (a−b), confidence interval sample, 95%