| ObjectiveThrough the basic survey before interference and the evaluation effect of the interfering measures within one year of health education about iodine deficiency disorders in Baofeng county of Henan Province,evaluating the effect of health education measures,exploring new approachs and new methods of health education about iodine deficiency disorders,establishing a working mechanism of health education eliminating suatainably iodine deficiency disorders to popularize knowledge of prevention and cure about iodine deficiency disorders and to enhance the awareness of prevention,and to prevent iodine deficiency disorders effectively.MethodsSix towns as the intervention areas which were randomly selected from all the 12 towns of Baofeng county,the other six towns are aeras to compare with, as the contrasted areas.Health education activities were carried out for all primary schools of 3～6 grades in the intervention areas.5 administrative villages which have primary schools were randomly selected in each town of the intervention areas,while total 30 administrative villages were selected as the intervention group to process health education activities.Main intervention methods are as follows:students from grade 3～6 study four classes of health education lessons,watch four times of VCD of science spread knowledge about preventing and controling iodine deficiency disorders,carry out four times of activities of identifing iodine salt,students themselves manage four periods of blackboard-newspaper about the knowledge of preventing iodine deficiency disorders and write four sections of compositions about iodine deficiency disorders within one year of health education intervention.Students deliver "a litter addressing householder" the relevant knowledge they have learned to their family members distribute.Holding training courses about iodine deficiency disorders for the officers of sports and health,headmasters of the centre school in towns,teachers, school doctors, village doctors and the village women director.Doctors and women director of village organized two times of trainings of iodine deficiency disorders for housewives, watching two times of VCD of science to spread knowledge about prevention and control iodine deficiency disorders,holding twice women's forums,writing the posters and hanging the banners in the villages,putting up posters in health stations and stores selling iodine salt,the health station of village manage four periods of publicity board about iodine deficiency disorders,the television station of Baofeng county play three times of science to spread knowledge about preventing and controling iodine deficiency disorders and report two times of the knowledge about iodine deficiency disorders.Then,in the contrasted areas,5 administrative villages which have primary schools were randomly selected from each town,while 30 administrative villages were selected as the contrasted group where the previous preventative measures were continued being done.Before the intervention and one year after the intervention,students and housewives were respectively investigated the rate of understanding the knowledge about iodine deficiency disorders.Monitoring pupils' urinary iodines, survey the rate of goiter,testing the iodine content in household salt.ResultsMedian water iodine between 2.18μg/L to 2.88μg/L in all of the townships of baofeng county,compared with the states standard which is less than 10μg/L.In the intervention group,the baseline awareness rate of knowledge about iodine deficiency disorders(IDD) of the primary students was 62.56%,the evaluation rate was 95.78%, In the cotrasted group,the baseline awareness rate of knowledge about IDD of the primary students was 62.11% and the evaluation rate was 64.78%.Comparing with the baseline awareness rate between the intervention group and the contrast group or the baseline and the evaluation awareness rate in the intervention group, the differences of awareness rate of knowledge was statistically significant(P<0.01). The baseline awareness rate in the intervention and the contrast group, or the baseline and the evaluation awareness rate in the contrast group, the difference of awareness rate of knowledge was not statistically significant (P>0.05)In the intervention group,the baseline awareness rate of knowledge of housewives about IDD was 61.17%, the evaluation rate was 93.17%.In the contrast group,the baseline awareness rate of knowledge of housewives about IDD was 63.00%, the evaluation rate was 64.33%. The baseline awareness rate between the intervention group and the contrast group or the baseline and the evaluation awareness rate in the intervention group, the difference of awareness rate of knowledge was statistically significant.Comparing with the baseline awareness rate in the intervention and the contrast group, or the baseline and the evaluation awareness rate in the contrast group, the differences of awareness rate of knowledge was not statistically significant.The test results of resident household salt:except that the evaluation coefficient of variation of iodized salt was less than 20% in the intervention group.others were more than 30%.In the intervention group,the baseline coverage rate of iodized salt was 91.00%,the evaluation coverage rate of iodized salt was 99.67%.In the contrast group,the baseline coverage rate of iodized salt was 92.33%, the evaluation coverage rate of iodized salt was 92.67%.Comparing with the baseline coverage rate of iodized salt in the intervention group and the contrast group,or the baseline and the evaluation coverage rate of iodized salt in the contrast group, the differences was not statistically significant. The baseline and the evaluation coverage rate of iodized salt in the intervention group,or the evaluation coverage rate of iodized salt between the intervention group and the contrast group,the differences was statistically significant.In the intervention group,the baseline intake rate of qualified iodized salt of the residents was 88.17%, the evaluation was 97.67%.In the contrast group,the baseline intake rate of qualified iodized salt was 89.17%, the evaluation was 90.17%.Contrasting the baseline intake rate of qualified iodized salt in the intervention and the contrast group,or the baseline and the evaluation intake rate of qualified iodized salt in the contrast group, the difference was not statistically significant. The baseline and the evaluation intake rate of qualified iodized salt in the intervention group,or the evaluation intake rate of qualified iodized salt between the intervention and the contrast group,the differences was statistically significant.The testing results of urinary iodine of the primary students,the median baseline and the evaluation value of urinary iodine of the primary students were more than 200μg/L in the intervention group and the contrast group.In the intervention group,the baseline rate of urinary iodine under 50μg/L of the primary students was 8.7%,the baseline rate of urinary iodine under 100μg/L of the primary students was 16.8%.The evaluation rate was 0 and 1.8%;In the intervention group, the difference of the baseline and the evaluation rate was statistically significant.In the contrast group,the baseline rate of urinary iodine under 50μg/L of the primary students was 7.0%,and under 100μg/L was 14.2%,the evaluation rate was 6.8% and 14.3%.In the contrast group,the difference of the baseline and the evaluation rate was not statistically significant.In the intervention and the contrast group, the difference of baseline rate was not statistically significant. In the intervention and the contrast group, the difference of the evaluation rate was statistically significant.In the intervention group,the baseline goiter rate of the primary students was 4.83%, the evaluation rate was 4.00%.In the contrast group,the baseline goiter rate of the primary students was 4.50%, the evaluation rate was 4.67% in the intervention and the contrast group, the difference of the baseline and evaluation goiter rate was not statistically significant.ConclusionsCarring out health education interference among students and women can raise their awareness rate of knowledge about IDD,improving the masses'awareness of self-health care.At the same time,the coverage rate of iodized salt,and the intake rate of qualified iodized salt significantly have increased manfestly.The rate of urinary iodine of the primary students under 100μg/L and under 50μg/L have obviously decreased.Although the health education interference has maken the goiter rate of the primary students decrese 0.83 percentage points,it still needs more observation whether that differences are not statistically significant is relevant with that the time of interferences is brief,the thyroid intumesce or that the detumescence is not obvious. |
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