Table 2.
Descriptive statistics of fluoride exposure and kidney and liver measures
| Measure | Arithmetic Mean (Standard Error) |
Median | 5th percentile | 95th percentile |
|---|---|---|---|---|
| Plasma fluoride (μmol/L) a | 0.40 (0.01) | 0.33 | 0.16 | 0.81 |
| Tap water fluoride (mg/L) b | 0.48 (0.03) | 0.48 | 0.07 | 1.00 |
| eGFR (mL/min/1.73 m2) | 147.98 (1.21) | 143.55 | 106.25 | 203.66 |
| SUA (mg/dL) | 5.07 (0.04) | 4.92 | 3.07 | 7.21 |
| Albumin/creatinine ratio(mg/g) | 24.63 (1.93) | 7.49 | 3.03 | 67.08 |
| BUN (mg/dL) | 11.25 (0.17) | 10.41 | 5.80 | 16.59 |
| ALT (IU/L) | 19.57 (0.38) | 15.72 | 10.15 | 38.57 |
| ALP (IU/L) | 134.26 (2.91) | 96.70 | 48.41 | 323.58 |
| AST (IU/L) | 23.81 (0.37) | 21.62 | 15.25 | 35.01 |
| Serum albumin (g/dL) | 4.51 (0.01) | 4.46 | 3.96 | 4.96 |
| GGT (IU/L) | 14.35 (0.28) | 11.88 | 7.15 | 27.48 |
Note. Sampling weights were applied for calculation of all descriptive statistics. N=25,942,026 (unweighted n = 1985);
a
N = 25,930,302 (unweighted n = 1983);
b
N = 23,287,332 (unweighted n = 1742); Samples were reweighted to the dietary sample prior to calculating these descriptive statistics as these were the values utilized in regression analyses. Only standard errors changed following reweighting.