Analisis Faktor Tingginya Total Goiter Rate (Tgr) Di Kabupaten Bangka Tengah, Kepulauan Bangka Belitung

Based on the National Mapping Survey on Iodine Deficiency Disorders (IDD) 1996/1998, Sub-District of Sungai Selan at District of Bangka Tengah, Province of Kep.Bangka Belitung was in category of severe endemic goitre. The objective of this study is to know risk factors that influence on the development of thyroid gland in Sub-district of Sungai Selan. Location of study was student of grade 3, 4 and 5 of 3 Primary School in Sub-district of Sungai Selan (severe endemic) dan another 3 Primary School in Sub-district of Pangkalan Baru (non-endemic). These 6 Primary Schools were the location surveyed in 199611998. Data collection included urinary iodine concentration (UIC), iodine rich food consumption, thiocyanate rich food consumption, iodine content in salt consumed by household and iodine content in drinking water. Score of iodine rich food and score of thiocyanate rich food consumptions higher in non-endemic than in endemic area. Median value of UIC in endemic area was higher in endemic ar.ea although the median in both areas was in category of excess iodine i.e. 310 µg/L in non-endemic and 488 µg/L in endemic area respectively. All subject, in endemic and non-endemic areas, consumed iodised salt. Iodine content in salt was 35.5 part per million (ppm) in non-endemic and 29,8 ppm in endemic area. The conclusion was that consumption of iodine and thiocyanate rich food and iodine content in salt and in drinking water were not the risk factors of IDD in that area