Table 1 Population characteristics and exposure factors.

Age (year)

35.85 ± 7.54

43.30 ± 8.15

Weight (Kg)

77.8 ± 12.2

76.9 ± 10.6

BMI (Kg/m² )

25.5 ± 3.3

25.3 ± 4.2

24 hours urinary volume (ml)

1500 ± 691.5

1750 ± 655.8

24 hours Urinary creatinine (g/l)

1.3 ± 0.55

0.91 ± 0.43

Place of residence

-Urban

8 (23.5)

9 (30)

-Suburbs

22 (64.7)

15 (50)

-Rural

4 (11.8)

6 (20)

Marital status

-Married

17 (50)

10 (33.3)

-Not married

17 (50)

20 (66.6)

Level of education

-< 12 years of schooling

2 (5.9)

8 (26.7)

-> 12 years of schooling

32 (94.1)

22 (73.3)

Smoking

-Never smokers

29 (85.3)

18 (60)

-Ex-smokers

5 (14.7)

12 (40)

Exposure to passive smoking

-Yes

20 (58.8)

17 (56.7)

-No

14 (41.2)

13 (43.3)

Alcohol consumption

-Regularly

23 (67.6)

10 (33.3)

-Occasionally

11 (32.4)

20 (66.7)

Use of barbecue last week

-Yes

3 (8.8)

0 (0)

-No

31 (91.2)

30 (100)

Massive physical activity (last two days)

-Yes

6 (17.6)

4 (13.3)

-No

28 (82.4)

26 (86.7)

Fruits intake

-Usually

21 (61.8)

23 (76.7)

-Sometimes

13 (26.5)

7 (16.7)

Vegetables intake

-Usually

19 (55.9)

26 (86.7)

-Sometimes

15 (44.1)

4 (13.3)

Intake of vitamins/minerals

-Yes

6 (17.6)

2 (6.7)

-No

28 (82.4)

28 (93.3)

Usage of protective equipments

-Yes

11 (32)

0 (0)

-No

23 (68)

30 (100)