Table 1 Distribution of total goitre prevalence and median urinary iodine concentration by age group
From: Tanzania national survey on iodine deficiency: impact after twelve years of salt iodation
Age-group (years) | Total goiter prevalence | Urinary iodine concentration | |||
|---|---|---|---|---|---|
Total children surveyed (N) | Children with goitre (n) | % children with goitre (95% CI) | Urine samples analysed (N) | Median UIC μg/L (95% CI) | |
6 -12 | 94046 | 5181 | 5.5 (5.3, 5.6) | 2640 | 203.3 (187, 219) |
13 - 15 | 40533 | 3881 | 9.6 (9.3, 9.9) | 1555 | 210.0 (192, 228) |
16 and above | 6179 | 707 | 11.4 (10.6, 12.2) | 328 | 185.6 (138, 233) |
Total | 140758 | 9769 | 6.9 (6.8, 7.1) | 4523 | 203.6 (192, 215) |