Table 1: Means of blood lead levels and other variables classified by 4 leadquartiles among men participating in the EGAT Study project.

CharacteristicBlood lead Quartiles
TotalQuartile 1Quartile 2Quartile 3Quartile 4
( )( )( )( )( )

Blood lead level,
mean (rang), g/dL
5.452.443.955.779.21
(1.23–24.63)(1.23–3.47)(3.48–4.55)(4.56–6.47)(6.48–24.63)
Age, mean (SD), years42.55 (3.15)42.94 (6.33)42.17 (5.29)42.33 (5.29)42.78 (7.30)
Body mass index, mean (SD), kg/m223.99 (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
 Nonsmokers4.93 (2.36)2.09 (0.96)3.79 (0.88)4.90 (1.01)8.76 (1.12)
 Former smokers6.07 (2.94)2.45 (0.75)3.68 (1.23)4.81 (0.97)9.23 (1.39)
 Current smokers9.29a (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,
 Nondrinkers5.32 (2.36)2.12 (0.96)3.56 (1.12)4.84 (1.24)7.96 (3.12)
 Lightdrinkers4.96 (1.98)1.99 (0.35)3.78 (1.04)5.12 (1.98)8.82 (3.07)
 Ex-drinkers5.17 (2.18)2.32 (0.74)3.44 (1.31)4.97 (1.69)8.23 (2.98)
 Current drinkers6.49 (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/L2.07 (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), mmHg77.29 (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 .