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This study examined the trend of early marriage among adolescent girls for more than a decade in eastern Ethiopia. We analyzed data of girls in the age group of 10-17; extracted from the Kersa Health and Demographic Surveillance System database for the period of 2008–2018. The annual incidence of early marriage was calculated per 1000 person-time and Chi-square test for linear trend was run to examine the change in rates over time. The overall incidence of early marriage was 40.48/1000 girls per year (95% CI: 39.1–41.9) with increasing trend over ten years period. Higher incidence of early marriage occurred among rural resident, illiterate and unemployed girls. The findings show higher overall incidence of early marriage, its substantial differences among various socio demographic groups and increasing trend of early marriage incidence. Efforts are needed to empower rural girls to support them pursue their education and thereby reduce early marriage. <b> </b><br>

本研究针对埃塞俄比亚东部地区十余年来的女童早婚趋势开展调研。本研究分析了2008至2018年间取自凯尔萨健康与人口监测系统（Kersa Health and Demographic Surveillance System）数据库的10-17岁女童相关数据，以每1000人年为单位计算早婚年发病率，并通过卡方线性趋势检验分析发病率随时间的变化情况。研究结果显示，该地区早婚整体发病率为40.48/1000女童·年（95%置信区间：39.1~41.9），十年间呈持续上升趋势；农村居住、文盲及无业女童的早婚发病率更高。本研究结果表明，该地区早婚整体发病率偏高，不同社会人口学群体间的早婚发病率存在显著差异，且早婚发病率呈逐年上升态势，亟需采取措施赋能农村女童，助力其完成学业以降低早婚现象的发生。