<![CDATA[Background: Tangerang City experienced a significant increase in measles cases in 2023, with 114 laboratory-confirmed cases out of 484 suspected cases, despite achieving a complete basic immunization coverage of 106.4%. This phenomenon suggests that additional factors may have contributed to the occurrence of measles and warrant further investigation. This study aimed to analyze the factors influencing measles incidence among children under five years of age in Tangerang City in 2023.Methods: This study employed a cross-sectional design with a total sample of 137 children under five who underwent laboratory examination. Bivariate analysis was conducted using the Chi-square test to identify associations between independent variables—namely immunization status, nutritional status, history of contact, parental education, parental occupation, and family income—and measles incidence.Result: Factors significantly associated with measles incidence were immunization status (PR = 1.62; p = 0.045 for unvaccinated children and PR = 2.22; p = 0.021 for children with incomplete immunization) and a history of contact with measles cases (PR = 4.17; p < 0.001). Other factors, including nutritional status, parental education, parental occupation, sex, and family income, were not statistically significant.Conclusion : Incomplete immunization status and a history of close contact with measles patients are the primary risk factors for measles incidence in Tangerang City. Recommended measures include strengthening immunization coverage, enhancing surveillance, and improving community education to prevent measles transmission.]]>
