Table 2.
Spearman’s correlation coefficients (rS) between age, Ery-Cd, B-Cd, U-Cd, and ferritin in plasma in the Andean and Bangladeshi populations.
| Covariate | Ery-Cda | B-Cd | U-Cd | Ferritin | ||||
|---|---|---|---|---|---|---|---|---|
| Andes | Bangladesh | Andes | Bangladesh | Andes | Bangladesh | Andes | Bangladesh | |
| Age | ||||||||
| rS | 0.32 | 0.18 | 0.40 | — | 0.42 | 0.23 | 0.50 | –0.02 |
| p | 1.5 × 10–5 | 0.006 | 5.8 × 10–8 | 8.7 × 10–9 | 1.3 × 10–5 | 1.0 × 10–11 | 0.8 | |
| n | 172 | 234 | 172 | — | 172 | 359 | 166 | 355 |
| Ery-Cd | ||||||||
| rS | 0.97 | 0.42 | 0.53 | –0.09 | –0.15 | |||
| p | 3.0 × 10–7 | 1.2 × 10–8 | 1.4 × 10–24 | 0.2 | 0.001 | |||
| n | 172 | 172 | 234 | 166 | 230 | |||
| B-Cd | ||||||||
| rS | 0.45 | — | 0.03 | — | ||||
| p | 5.0 × 10–10 | 0.7 | ||||||
| n | 172 | — | 166 | — | ||||
| U-Cd | ||||||||
| rS | 0.21 | –0.08 | ||||||
| p | 0.008 | 0.1 | ||||||
| n | 166 | 355 | ||||||
| —, Not measured. aEry-Cd was measured in the Bangladeshi women and was estimated based on B-Cd concentrations for the Andean women. | ||||||||