Table 2 Results from adjusted multiple linear regression models of diphtheria and tetanus antibody outcomes for single and combined metal exposures among the overall study population (n = 502)
| Â | Water arsenic | Water manganese | Blood lead | |||
|---|---|---|---|---|---|---|
Change (%) (95% CI) | Change (%) (95% CI) | Change (%) (95% CI) | ||||
Single elementa | Combinedb | Single elementa | Combinedb | Single elementa | Combinedb | |
Diphtheria IgG antibody | ||||||
 Pregnancy | −3.4 (−7.2, 0.6) | −2.9 (− 7.0, 1.5) | −1.6 (−8.3, 5.5) | −1.1 (− 7.9, 6.2) | 4.7 (− 4.9, 15.3) | 4.1 (− 5.9, 15.2) |
 Toddlerhood | 1 (− 2.7, 4.9) | 0.8 (− 2.9, 4.8) | 2.7 (− 3.1, 8.8) | 2.7 (− 3.2, 8.9) | 5.9 (− 10.4, 25.2) | 4.6 (− 11.9, 24.1) |
 Early childhood | 1.7 (− 1.6, 5.1) | 2 (− 1.4, 5.5) | − 0.7 (− 5.8, 4.8) | −1.1 (− 6.4, 4.5) | −6.4 (− 20.4, 10.1) | −6.2 (− 20.5, 10.5) |
Tetanus IgG antibody | ||||||
 Pregnancy | 0.5 (− 3.8, 5.0) | 2.6 (− 2.0, 7.5) | 5.1 (− 2.5, 13.3) | 5.4 (−2.3, 13.6) | 10.2 (− 0.6, 22.1) | 13.3 (1.7, 26.2) |
 Toddlerhood | − 0.8 (− 4.7, 3.3) | −1 (− 4.9, 3.1) | − 2.7 (− 8.5, 3.5) | −3.9 (− 9.7, 2.3) | 1.6 (− 15.5, 22.2) | 3.2 (− 14.1, 24.1) |
 Early childhood | −0.1 (− 3.6, 3.6) | 0.4 (− 3.2, 4.1) | − 0.6 (− 6.1, 5.2) | −1.5 (− 7.1, 4.4) | 2 (− 14.3, 21.4) | 3.4 (− 13.2, 23.2) |