Table 2.
Selenium status by district and demographic group.
| Variable | District | Plasma Se (μg/L)† | Prevalence (%) of Se deficiency | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Median | Mean | SD | Min. | Max. | Plasma Se‡ (<70 μg/L) | SELENOP (<100 μg/L) | GPX3 (<84.9 μg/L) | IDI (<64.8 μg/L) | ||
| Children 6–59 months | ||||||||||
| Murewa | 36.5 (27.8, 44.1) | 37.0 | 12.6 | 9.4 | 80.0 | 98.0 | 100 | 100 | 97.6 | |
| Shamva | 40.2 (31.6, 48.0) | 40.1 | 11.3 | 12.2 | 76.8 | 98.2 | 100 | 100 | 97.8 | |
| Mutasa | 47.2 (37.1, 58.0) | 48.5 | 18.5 | 12.7 | 175.2 | 92.3 | 98.2 | 96.8 | 87.3 | |
| Overall | 40.5 (31.3, 49.5) | 41.6 | 15.0 | 9.4 | 175.2 | 96.4 | 99.5 | 99.1 | 94.6 | |
| Women 15–49 years | ||||||||||
| Murewa | 53.0 (42.5, 64.8) | 53.8 | 16.7 | 10.2 | 115.3 | 84.0 | 98.9 | 96.8 | 74.8 | |
| Shamva | 58.5 (47.6, 70.0) | 59.6 | 17.7 | 17.4 | 150.4 | 75.1 | 98.7 | 92.7 | 61.1 | |
| Mutasa | 71.7 (62.1, 84.9) | 74.3 | 21.3 | 27.9 | 184.3 | 47.4 | 91.6 | 75.5 | 31.7 | |
| Overall | 61.2 (48.7, 73.3) | 62.0 | 20.3 | 10.2 | 184.3 | 69.8 | 96.6 | 88.9 | 57.0 | |
†Values in brackets are Q1: 25th percentile and Q3: 75th percentile, SD, standard deviation; Min., minimum value; Max., maximum value. ‡Plasma Se concentration is the standard reference for Se status determination, SELENOP, Selenoprotein P; GPX3, glutathione peroxidase 3; IDI, iodothyronine deiodinase.