Table 2.
Fe levels by subgroups (n = 375).
| Subgroup | n | Mean | SD | Median | Min | Max | Range | IQR | |
|---|---|---|---|---|---|---|---|---|---|
| Sex | |||||||||
| Female | 231 | 1069.14 | 292.19 | 1044.88 | 162.15 | 1792.36 | 1630.21 | 395.5 | |
| Male | 144 | 1236.93 | 398.84 | 1234.28 | 369.67 | 2815.78 | 2446.11 | 526.49 | |
| Clark | |||||||||
| II | 71 | 1149.54 | 317.63 | 1156.85 | 460.85 | 2067.22 | 1606.37 | 451.18 | |
| III | 157 | 1107.69 | 318.32 | 1090.98 | 162.15 | 1934.12 | 1771.97 | 411.51 | |
| IV/V | 147 | 1153.5 | 386.68 | 1136.38 | 412.76 | 2815.78 | 2403.02 | 484.64 | |
| Fe level in quarters (µg/L) | |||||||||
| I (162.15–893.05) | 94 | 725.16 | 145.7 | 762.68 | 162.15 | 893.05 | 730.9 | 199.85 | |
| II (895.69–1095.88) | 93 | 999.41 | 59.49 | 998.63 | 895.69 | 1095.88 | 200.19 | 102.3 | |
| III (1105.49–1346.75) | 94 | 1228.17 | 68.56 | 1232.03 | 1105.49 | 1346.75 | 241.26 | 122.53 | |
| IV (1348.63–2815.78) | 94 | 1580.12 | 236.59 | 1529.21 | 1348.63 | 2815.78 | 1467.15 | 217.96 | |