تغييرات رشد جسمي دانش آموزان روستاي زايكان تهران ده سال پس از يدرساني

The Changes of Height and Weight of Schoolchildren of Zagoon Ten Years after Iodine Supplementation

our previous studies have shown a severe iodine deficiency in Zagoon (A village in north-east of Tehran).Whole inhabitants of this village received iodized oil injection ( containing 480 mg iodine) in 1989. In addition iodized salt was distributed after three years in this village. This study was carried out in order to monitor of the changes of height and weight of schoolchildren aged 6-14 years of Zagoon ten years after iodine supplementation. Ninety-nine students including 46 female and 53 males in eight age groups were studied. Anthropometric measurement for weight and height were performed in all subjects. Weight was measured with minimum clothing using electronic scales that was calibrated for accuracy. Height was measured bare foot. The weight was measured to the nearest 0.1 kg and height to the nearest 0.1 cm. Height and weight determined in every age group. These data were compared with similar data in 1989 ( before intervention ). Anthropometric data were presented as indices of Z score of height for age and weight for age. These indices were compared with reference data of the National Center of Health Statistics (NCHS). Deviation of height in subjects in 1999 were 51, 13, 36 % in below 5th percentile , between 5th and 50th percentile and upper 50th percentile (median)respectively. Deviation of weight were 5,13 and 28%. As compared to data in 1989 (before supplementation) median of height and weight is near to NCHS cure. These changes were not statistically significant. Weight and height in 13% of schoolchildren were under 5th percentile of NCHS. However height in 51% and weight in 59% of subjects were between 5th and 50th percentile of NCHS. This study shows that administration of iodine supplementation in this village ten years after intervention has caused improvement of physical growth specially in children below 10 years old because of the mean of height and weight were nearer to NCHS. In the future studies the socioeconomical indices must be considered.