Table 2 Demographic characteristics and unadjusted analyte geometric means (GM) and ranges for training and testing datasets
| Â | Training data | Testing data |
|---|---|---|
Demographic group, n (%) | ||
 All | 1,723 | 428 |
 Male | 887 (51) | 243 (57) |
 Female | 836 (49) | 185 (43) |
 Non-Hispanic white | 841 (49) | 216 (51) |
 Non-Hispanic black | 489 (28) | 116 (27) |
 Mexican American | 393 (23) | 96 (22) |
 6–11 years old | 148 (8) | 39 (9) |
 12–19 years old | 268 (16) | 63 (15) |
 20–39 years old | 544 (32) | 125 (29) |
 40–59 years old | 461 (27) | 120 (28) |
 >60 years old | 302 (17) | 81 (19) |
Analytical measurement, GM (range) | ||
 Creatinine, g/L | 1.1 (0.1–8) | 1.1 (0.09–5.6) |
 UFR, mL/min | 0.7 (0.03–34.5) | 0.7 (0.06–5.5) |
 Osmolality, mOsm/kg | 635 (91–1,394) | 630 (84–1,350) |
 Urinary AsIMM, μg/L | 6.3 (2.9–386) | 6.4 (2.9–105) |
 Urinary I, μg/L | 149 (8–15,651) | 161 (16.9–9,322) |
 Urinary Pb, μg/L | 0.5 (0.08–49.6) | 0.5 (0.08–14.3) |
 Urinary Cd, μg/L | 0.2 (0.04–6.2) | 0.2 (0.04–4.8) |
 Blood Pb, μg/dL | 1.1 (0.2–33.7) | 1.1 (0.2–22) |
 Blood Cd, μg/L | 0.3 (0.1–8.7) | 0.3 (0.1–4) |