Association between Inflammatory Marker, Environmental Lead Exposure, and Glutathione S-Transferase Gene
Table 1
Means of blood lead levels and other variables classified by 4 leadquartiles among men participating in the EGAT Study project.
Characteristic
Blood lead Quartiles
Total
Quartile 1
Quartile 2
Quartile 3
Quartile 4
()
()
()
()
()
Blood lead level, mean (rang), g/dL
5.45
2.44
3.95
5.77
9.21
(1.23–24.63)
(1.23–3.47)
(3.48–4.55)
(4.56–6.47)
(6.48–24.63)
Age, mean (SD), years
42.55 (3.15)
42.94 (6.33)
42.17 (5.29)
42.33 (5.29)
42.78 (7.30)
Body mass index, mean (SD), kg/m2
23.99 (6.11)
24.59 (3.25)
23.56 (6.21)
23.78 (9.19)
24.06 (6.24)
Mean blood lead (SD), g/dL; classified by smoking status
Nonsmokers
4.93 (2.36)
2.09 (0.96)
3.79 (0.88)
4.90 (1.01)
8.76 (1.12)
Former smokers
6.07 (2.94)
2.45 (0.75)
3.68 (1.23)
4.81 (0.97)
9.23 (1.39)
Current smokers
9.29a (4.26)
2.81 (1.21)
4.08 (1.08)
5.43 (1.14)
12.34 a,b (5.32)
Mean blood lead (SD), g/dL; classified by alcohol consumption,
Nondrinkers
5.32 (2.36)
2.12 (0.96)
3.56 (1.12)
4.84 (1.24)
7.96 (3.12)
Lightdrinkers
4.96 (1.98)
1.99 (0.35)
3.78 (1.04)
5.12 (1.98)
8.82 (3.07)
Ex-drinkers
5.17 (2.18)
2.32 (0.74)
3.44 (1.31)
4.97 (1.69)
8.23 (2.98)
Current drinkers
6.49 (4.99)
2.41 (1.01)
4.17 (1.36)
5.33 (1.54)
11.07 (5.31)
Serum hs-CRP level, mean (SD), mg/L
2.07 (1.62)
1.54 (0.79)
1.87 (0.96)
2.79 (1.36)
4.12c,d (2.18)
Systolic BP, mean (SD), mmHg
124.4 (10.55)
114.8 (6.09)
123.7 (8.06)
126.8 (10.14)
132.1c (16.13)
Diastolic BP, mean (SD), mmHg
77.29 (15.38)
77.44 (8.73)
76.78 (11.75)
77.62 (16.83)
77.31 (10.77)
a,b Significantly different from never smoked and former smoker, respectively, .
c,d Significantly different from blood lead quartiles 1 and 2, respectively .
