BACKGROUND Time-to-first birth after marriage has a significant role in the future life of each individual woman and has a direct relationship with fertility. This study aimed to see the determinant of time-to-first birth interval after marriage among Ethiopian women. METHODS The data was obtained from 2011 Ethiopia Demographic and Health Survey which is the third survey. The sample was selected using a stratified; two-stage cluster sampling design and the data was analysed using parametric shared frailty model. RESULTS A total of 7925 ever married women from the nine region of the country were included in this study. Of the total women, 5966 (75.3%) of them gave firstbirth. Age, residence area, employment status, contraceptive use and education of women were associated significantly to time-to-first birth. CONCLUSIONS Women having younger age at first marriage, urban women, contraceptive users had prolonged time to first birth interval. There is a need of teaching family for contraceptive use and improving women education to increase the length of first birth interval in Ethiopia.

中文翻译：

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埃塞俄比亚妇女结婚后首次生育的​​时间间隔的决定因素。

背景技术结婚后的第一胎在每个妇女的未来生活中都起着重要作用，并且与生育能力有直接关系。这项研究旨在了解埃塞俄比亚妇女结婚后首次生育时间的决定因素。方法数据来自2011年埃塞俄比亚人口与健康调查，这是第三次调查。使用分层选择样本。两阶段聚类抽样设计，并使用参数共享脆弱模型对数据进行分析。结果本研究共包括来自该国九个地区的7925名已婚妇女。在所有妇女中，有5966人（75.3％）生了第一胎。妇女的年龄，居住地区，就业状况，避孕药具的使用和受教育程度与首次生育时间密切相关。结论初婚年龄较小的妇女，城市妇女，使用避孕药具的妇女延长了第一次生育的时间。需要教育家庭使用避孕药具，并改善妇女教育，以增加埃塞俄比亚的首次生育间隔时间。