Table 2

Final linear regression model for tibial lead concentrations in women early after giving birth (n=430)

Variable Tibial Pb (μg/g) estimate (95% CI)
Intercept−0.6 (−2.5 to  1.3)
Life spent in Mexico City (%):1-150
 ⩾405.0 ( 3.8 to  6.1)
Age (y):1-151
 20–251.3 (−0.01  to  2.6)
 26–304.4 ( 3.1 to  5.7)
 31–405.7 ( 4.1 to  7.3)
Use of lead glazed pottery:1-152
 Now but not in the past2.6 ( 0.6 to  4.6)
 In the past but not now3.3 ( 1.8 to  4.9)
 Always6.1 ( 4.5 to  7.7)
Total model R2 0.12

  • ↵1-150 Compared with <40% of lifetime spent living outside Mexico City.

  • ↵1-151 Compared with those participants <20 years old.

  • ↵1-152 Compared with participants who have never used lead glazed pottery to cook or store food.