Table 2

Characteristics	Copper (Cu) mean(SD) ppm	Lead (Pb) mean(SD) ppm	Cadmium (Cd) mean(SD) ppm
Age(years)	Copper (Cu) mean(SD) ppm	Lead (Pb) mean(SD) ppm	Cadmium (Cd) mean(SD) ppm
40-50 (n=56)	2.06(1.82)	2.84(2.40)	0.11(0.14)
51-60(n=44)	1.40(1.46)	1.43(1.07)	0.05(0.092)
Gender
Male(n=70)	2.06(1.89)	2.66(2.28)	0.11(0.14)
Female(n=30)	1.08(0.77)	1.2(0.63)	0.03(0.03)
Frequency of cigarettes smoking
Frequency of cigarettes smoking
10-20 cigarettes/day (n=45)	1.47(1.06)	1.79(0.43)	0.06(0.08)
More than 20 cigarettes/day (n=30)	2.89(2.45)	4.17(2.76)	0.19(0.16)

Table 2: Cu, Pb and Cd Concentrations (mean & SD) in ppm with respect of age, gender and frequency of cigarette smoking