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. Author manuscript; available in PMC: 2013 Oct 19.
Published in final edited form as: J Occup Environ Med. 2009 Jul;51(7):848–857. doi: 10.1097/JOM.0b013e3181aa0106

Table 7. Summary of results from previous studies.

Gerhardsson et al. 1993 Bleecker et al. 1995 Fleming et al. 1997
Study population 30 retired workers (28) 81 strike workers (29) 204 strike workers (3)
Average age (years) 68 44 45
Ave. tibia lead (ppm) 39.3 40 45.6
Ave. patella lead (ppm) 100.2 N.A. 81.6
Regression coefficient (tibia and calcaneous) T: 0.133 (95%CI 0.04-0.23)*
C: 0.062 (0.02-0.11)* 		T: 0.17 (0.12-0.22) T: 0.136 (0.11-0.16)
C: 0.078 (0.06-0.09)
Regression intercept T: 5.3**
C: 4.0** 		T: 13.0 T: 13.0
C: 13.0
*

unit: μg/(dl blood) per μg Pb/(g bone mineral)

**

unit: μg/(dl blood)