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Table 1 Characteristics of construction worker study subjects and serum PCB levels (Σ 57 congeners)

From: Serum PCB levels and congener profiles among US construction workers

ID# Birth Year Age Retired Y/N Years worked Current job Ever installed PCB caulk Time since last PCB work Sum PCB ng/g serum Ref* PCB ng/g serum Serum lipids (%)
1 1945 60 Y 36 Retired PCC Y 2 years 1.86 1.64 0.12
2 1954 51 N 30 Water proofer Y Approx. 1 month 2.11 1.64 0.24
3 1965 40 N 20 PCC N Currently working w/PCB 1.05 1.14 0.35
4 1969 36 N 16 Water proofer N Approx. 1 month 1.51 1.14 0.91
5 1939 66 N 45 Mason Y Approx. 1 month 1.77 1.64 0.83
6 1933 72 Y 54 Retired PCC Y 1 year 8.70 1.64 0.58
  1. *Reference PCB values are means for 5-year age groups from 358 men in the Greater Boston area. Referent subjects range from 18–51 years old.