The impact of iron supplementation toward hemoglobin levels on teenage girls in Bangli regency, Bali, Indonesia
Background: The prevalence of anemia in teenage girls in Indonesia was 33.1%. Department of health’s data in 2009, showed that 33.7% of teenage girls suffered anemia and the prevalence of anemia in Indonesia amounted to 57.1% suffered by teenage girls. Assorted studies showed the negative impact of anemia due to iron deficiency of nutrients to the growth and development of children and adolescents. Anemia in children and adolescents will lead to growth and development that are not optimal and reduce learning achievement because easy to get tired, loss of passion and cannot concentrate. Besides that, iron deficiency anemia will also cause low of Intelligent Quotient (IQ) as well as a decrease in the learning ability. One of the efforts to control anemia in teenage girls is to provide iron supplementation.Methods: The method used in this research was the one group pretest-posttest design. The study was conducted on all the teenage girls who were in 7 juniors high school (SMP) in Bangli regency with total of 1556 respondents. The criteria used for adolescents was when Hbg <12 g/dl then it is called anemia.Results: The average prevalence of anemia among teenage girls in Bangli regency was 36.8%. The highest incidence number of anemia in teenage girls in SMP 4 Tembuku by 66.7% and the lowest incidence of anemia in SMP 3 Susut by 22.4%. That iron supplementation in teenage girls suffered anemia had a significant impact on the reduction of anemia incidence in teenage girls. The average reduction in the incidence of anemia in teenage girls was 24.9%.Conclusions: Iron supplementation at a dose twice a week for 3 consecutive months can decrease the prevalence of anemia in teenage girls as much as 24.9% with an increase in hemoglobin levels ranged from 1.42 to 2.20 g/dl. Statistically, showed that iron supplementation had a significant impact on the reduction of anemia incidence in teenage girls.