و عوامل موثر بر آن در كودكان B بررسي پوشش واكسيناسيون هپاتيت

Survey of Hepatitis B Vaccination Coverage and Effective Factors on Children in Tehran

Hepatitis B is an important infections disease in all worlds. It has a high incidence rate and about 350 million people around the world infected and in Iran we have 1.6-2.0 million (3.1%) infected patients. About 0.5% of these patients are going to die each year because of its complications. Nowadays and because of immunization based on EPI (Expanded Program on Immunization) program, more than 3 million infantsʹ lives are saved and got their optimum growth and development. In spite of all these efforts and EPI program, many infants were killed every year by these preventable diseases. This study designed to survey coverage of Hepatitis B vaccination and effective factors on it, in an eastern district of Tehran in Iran. Data has been gathered by referring to patientsʹ homes and interviewing parents and after collecting information and filling forms, data was analyzed by SPSS and tests such as chi-square, independent sample T-test and Mann-Whitney. Subjects were chosen and studied by cluster sampling and 329 patients (47 clusters, 7 patients each) totally were survived in this study. 55% of patients were male and all patients were under 10 years (age mean 4.2±2.2 years). Hepatitis B vaccination coverage was 97.9%, 96,9% and 94.2% for first, second and third vaccination times, respectively. On time vaccination coverage were 77.5% in all these vaccinations. Decreasing of this coverage was 3.7%, comparing first and third vaccination. This study showed that there is a significant relation between knowledge state to hepatitis B vaccination, fatherʹs education and motherʹs job (P=0.000). There were no significant relationship between parentʹs jobs, sex, birth order, number of children and parentʹs education to on time vaccination (P>0.05).