This study aimed to evaluate the process of implementing the Iron Supplementation Program for high school girls. In this study, only 38% of students took iron pills distributed in school. The results of a study by Kheirouri showed that only 62.3% of female students had taken iron supplements fully[17]. Another study on students conducted by khammarnia found that only 31% had fully taken iron supplements[18]. The results of Chauhan's research showed that out of 71.7% of students who had anemia, 89.5% did not take iron supplements[21]. Sajna’s study on Indian students showed a low consumption of iron supplements by only 34.6% of students[15]. The results of Sarada’s study also showed that 77 percent of students reported that they did not take iron supplements[22]. The results of Banayejeddi's study on high school girls also showed that only 31 percent of students took iron supplements[23].
In this study, the distribution of pills was mostly done by the students. There was a significant relationship between the person distributing the pills and taking the pills, and when the pills were distributed by the students, the number of supplements taken increased. One of the most effective groups in the selection of health behaviors by the students is the peer group, and adolescents usually get the most influence from their friends[24]. Therefore, one of the effective groups in school to encourage students to practice health behaviors is the peer group, which can also be used in schools to increase the number of iron supplements taken by the students.
The most important reasons for not taking iron supplements from the viewpoint of the subjects, in order of priority, were as follows: bad taste of iron supplements, nausea after taking the supplements, no foreign iron supplements, no doctor prescription for the supplements, and no need for iron supplementation due to the lack of disease. In khammarnia’s study, the most important reasons for not taking iron supplements have been identified, in order of priority, by students as follows: gastrointestinal problems, the influence of friends and family, unwillingness to take and lack proper environmental conditions and facilities for taking supplements[18]. In the Sajna’s research, the most important reasons for not taking iron supplements were reported as the reluctance to take iron pills, fear of problems raised by taking iron pills, stomach pain, parental unwillingness, taking another supplement, and vomiting[15]. Priya's study also showed that the most important reasons students did not take iron supplements were: stomach pain, nausea and vomiting, headaches, and bad taste of iron supplements [25].
In this study, 71 percent of students said that there were not enough glasses for taking iron supplements. The results of a study showed that drinking water was not available in any class when distributing iron supplements and this problem was reported as a major obstacle to the effectiveness of the relevant program[17]. The results of the UNICEF evaluation showed that most students were dissatisfied with the side effects of supplements, and one school generally refused to continue taking supplements because of the severity of vomiting [26].
The results showed that there was a significant relationship between the availability of proper drinking water and the number of supplements consumed by the students, and the number of supplements taken by the students increased when they were provided with proper drinking water. One of the effective factors in performing any health behavior is the provision of enabling factors. One of the enabling factors that enhance behavior is the provision of appropriate environmental conditions for performing the behavior that ultimately increases the likelihood of performing behavior by individuals[27, 28]. Given the impact of environmental conditions on increasing iron supplement intake by the students, it is necessary to pay more attention to providing environmental conditions that increase the success of the program during the implementation of the relevant program.
More than half of the students in this study reported that there was no fixed time for pill distribution in schools. There was no significant relationship between how the supplements were distributed and devoting sufficient time to implement the program and the number of supplements consumed by the students, but when the pills were distributed weekly, the number of iron supplements taken by the students increased. The results of the Banayejeddi’s study showed that the pills were not regularly distributed in schools, with only 22% reporting taking one iron supplement regularly each week. Also, 80% of students received at least one iron supplement during the implementation of the program[23]. Regularly distributing the pills and devoting sufficient time to run the program in the schools can highlight the importance of implementing an iron supplementation program by the school management and the Department of Education, and if the students are informed of the importance of running the program, the implementation of the program is also considered important for them and it can increase the number of iron supplements taken by the students as well.
In this study, about 45 percent of students reported that they were not provided with any training in the iron supplementation program. In Kheirouri’s study[17], students also reported that they did not receive the necessary training in the iron supplementation program. The results of a study showed that brochures and educational materials designed in schools are not targeted and their content is inappropriate and requires a great deal of time for students to learn[17].
The results of this study showed that implementing the educational program increased the number of supplements consumed by the students. The results of an evaluation study conducted by UNICEF found that 32% of students did not know the reason for taking iron supplements and 61% reported that they did not receive any training program in this regard[26]. The results of a study showed that the iron supplementation training sessions were weakly held for female students in schools, and 64 students reported having at least one training session in this regard [23]. Obtaining the knowledge and information necessary to perform a behavior is one of the prerequisites for conducting behavior and it is necessary to obtain accurate information about the importance of the subject, the need to perform the intended behavior and learning how to behave correctly to continue conducting a behavior[29]. Increased knowledge and awareness increase in iron supplement intake[30]. Therefore, to increase the effectiveness of the iron supplementation program and supplement use by the students, it is necessary to pay more attention to the educational programs and use appropriate and effective strategies to implement educational programs and increase students' awareness during the implementation of the iron supplementation program.
The majority of students stated that teachers agreed with the use of iron supplements distributed in schools by the students. In a study by Priya[25], the results showed that teachers were not comfortable with the program implementation, because they believed that the program was time-consuming, under government pressure, and required a lot of extra work. The results of studies by Roschnik[31], Risonar [32], and Dhikale[33] showed that teachers had the most significant influence on the acceptance of taking iron supplements among students. The results of Sarada’s study on Indian students showed that 90% of teachers recommended taking iron supplements and 49% of them took iron supplements in the presence of students[22].
The results of this study showed that students took more iron supplements when training in an iron supplementation program was provided by a health educator. Health educators are people who are responsible for educating students and caring for students’ health in schools and are closely associated with students and can play an effective role in enhancing students’ health behaviors. The results of this study also confirmed the important role of health educators in encouraging students to perform health behaviors[34]. It seems that providing a health educator for each school can be one of the best ways to improve the quality of program implementation. Therefore, it is necessary to pay more attention to health educators and to take an important step in enhancing students' health by holding appropriate training courses and empowering the health educators in this regard.
Most students have stated that inviting health care professionals to discuss the issue related to iron supplement intake could have the greatest impact on encouraging students to take iron supplements. Then, screening films/clips about iron deficiency anemia (over 45% agreed) can be one of the most effective methods. The results of Priya's study[25] showed that students were interested in having iron supplementation training sessions by health care professionals. In the Mehrabian’s study[35], students reported that they received most of their information on iron supplements from physicians and health care personnel.
Overall, it appears that the distribution process of iron supplements was significantly different in public and nonprofit schools in this study. Students in nonprofit schools have reported that over 10% of cases delivered all iron supplements at the beginning of the program, while this was only 3% in public schools. On the other hand, 19% of students in public schools stated that they were only given one pill each month, compared to 10% in nonprofit schools. Regarding the pill distributor, it has also been stated that in nonprofit schools, supplements were mainly distributed by the school's educational assistant and health educators, while in public schools, supplements were distributed by the students themselves. One of the strengths of this study was the nationwide evaluation and sampling of public and non-public schools. One of the weaknesses of this study was the self-reported data collection as well as the lack of direct observation of behavior and the use of questionnaires for data collection.