Cohort analysis of adolescent first birth timing and births progression in West-Africa

Q3 Social Sciences

Etude de la Population Africaine Pub Date : 2018-12-01 DOI:10.11564/32-3-1233

A. Adebowale, E. Bamgboye, Adjiwanou Visseho

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Abstract

Context/Background: Adolescent Childbearing is an important factor sustaining high; fertility, childhood mortality and maternal mortality in West-Africa. We examined cohort analysis of adolescent first birth (AFB) timing and births progression in West-Africa. Data Source and Methods: Most recent round of DHS data of four countries in West-Africa were used. Women aged 20-49 years were studied. Birth timing probability, birth progression rate and hazard ratio were estimated (α=5.0%). Results: Across countries, AFB increases as the women’s year of birth cohort increases and the rate was highest among Nigerian women (r=0.773, p<0.001) but lowest in Liberia (r=0.497, p<0.001). The probability of surviving adolescent years’ interval without bearing a child was highest in Ghana for all age-cohorts, while Nigeria and Liberia exhibited similar pattern. Birth progression rate was higher among women who had AFB than women who started theirs at the later years. Hazard ratio of AFB was higher among women in age cohort 20-24 than those aged 45-49 years. Conclusion: Adolescent first birth is a problem in West-Africa but variation exist in the region. Adolescent pregnancy prevention policy is solicited in West-Africa.

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西非青少年初次生育时间和生育进展的队列分析

背景:青少年生育是维持高生育率的重要因素;西非的生育率、儿童死亡率和孕产妇死亡率。我们研究了西非青少年首次生育(AFB)时间和生育进展的队列分析。数据来源和方法:使用了西非四个国家最新一轮的国土安全部数据。研究对象是年龄在20-49岁之间的女性。估计分娩时机概率、分娩进展率和风险比(α=5.0%)。结果:在各国，AFB随着女性出生年份的增加而增加，尼日利亚妇女的比率最高(r=0.773, p<0.001)，利比里亚最低(r=0.497, p<0.001)。在所有年龄组中，加纳度过青春期而不生育孩子的概率最高，而尼日利亚和利比里亚也表现出类似的模式。生育进展率在患有AFB的妇女中高于那些在晚些时候开始的妇女。20 ~ 24岁女性患AFB的风险比高于45 ~ 49岁女性。结论:青少年头胎在西非是一个问题，但在该地区存在差异。在西非征求青少年怀孕预防政策。

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来源期刊

Etude de la Population Africaine Social Sciences-Demography

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期刊介绍： African Population Studies is a biannual, peer-reviewed journal that publishes original research articles, reviews, commentaries, letters and case studies on topics related to the disciplines represented by the Union for African Population Studies Association. These disciplines include demography, population studies, public health, epidemiology, social statistics, population geography, development studies, economics and other social sciences that deal with population and development interrelationships that are unique and relevant to Africa and global audience.