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Correlations of arsenic exposure with serum MMP-2 and MMP-9 concentrations
| Exposure metrics | MMP-2 (n = 369) | MMP-9 (n = 373) | ||
|---|---|---|---|---|
| Correlation coefficient (r s) | p-value | Correlation coefficient (r s) | p-value | |
| Water arsenic | 0.208 | <0.001 | 0.163 | <0.01 |
| Hair arsenic | 0.163 | <0.01 | 0.173 | <0.01 |
| Nail arsenic | 0.160 | <0.01 | 0.182 | <0.001 |
Log-transformed values were used. p-values were from Spearman correlation coefficient test
