Table 1

 Demographic information for 254 current smelter workers

VariableMeanSDRange
*Wide Range Achievement Test–Reading.
†Number of cigarettes smoked per day.
‡1 unit = 12 oz beer, 6 oz wine, 1 oz hard liquor per week.
Age (years)40.89.4120–63
Education (years)10.62.950–18
WRAT-R*50.715.0013–84
No. cigarettes†2.46.100–25
Alcohol use‡6.77.120–28
Years employed17.18.080.20–26
Blood lead (μg/dl)27.78.794–62
TWA (μg/dl)39.012.324–66
IBL (μg-y/dl)728.2434.360.6–1625.7