Table 3. Percent Distribution of Urinary Iodine Concentration in Filipino Women of Childbearing Age by Region.
| Characteristic | Number | Urinary iodine concentration, µg/L | |||||
|---|---|---|---|---|---|---|---|
| <20 | 20–49 | 50–99 | 100–199 | 200–299 | ≥300 | ||
| Philippines | 6,194 | 9.2 | 12.3 | 20.4 | 30.6 | 16.1 | 11.4 |
| Ilocos Region | 390 | 11.9 | 14.8 | 21.0 | 27.5 | 14.1 | 10.8 |
| Cagayan Valley | 302 | 9.1 | 14.5 | 25.6 | 29.6 | 13.1 | 8.1 |
| Central Luzon | 569 | 7.5 | 11.7 | 21.0 | 31.7 | 16.0 | 12.0 |
| Calabarzon | 676 | 5.9 | 6.5 | 13.5 | 31.8 | 22.7 | 19.6 |
| Mimaropa | 260 | 8.7 | 10.5 | 20.7 | 35.7 | 15.1 | 9.3 |
| Bicol | 321 | 6.5 | 15.2 | 23.0 | 33.5 | 11.5 | 10.3 |
| Western Visayas | 372 | 13.6 | 15.6 | 23.6 | 26.8 | 11.0 | 9.5 |
| Central Visayas | 390 | 8.3 | 13.8 | 25.0 | 33.4 | 13.4 | 6.2 |
| Eastern Visayas | 311 | 3.1 | 10.6 | 25.7 | 36.4 | 15.3 | 8.9 |
| Western Mindanao | 280 | 14.9 | 22.1 | 25.3 | 24.5 | 8.4 | 4.9 |
| Northern Mindanao | 343 | 9.7 | 15.4 | 24.5 | 32.6 | 12.1 | 5.6 |
| Southern Mindanao | 365 | 13.7 | 13.9 | 26.5 | 28.4 | 9.8 | 7.6 |
| Central Mindanao | 348 | 13.4 | 15.7 | 20.2 | 27.4 | 14.8 | 8.5 |
| NCR | 589 | 8.7 | 9.6 | 15.2 | 30.4 | 22.2 | 13.8 |
| CAR | 245 | 10.8 | 12.7 | 25.6 | 31.2 | 11.6 | 8.0 |
| ARMM | 202 | 16.1 | 20.8 | 21.2 | 23.7 | 9.9 | 8.3 |
| Caraga | 231 | 9.3 | 11.4 | 24.2 | 31.6 | 15.2 | 8.4 |
8.4NCR, National Capital Region; CAR, Cordillera Administrative Region; ARMM, Autonomous Region in Muslim Mindanao.