While studies in high-income countries have shown that failure to achieve fertility desires is significantly associated with unfavourable personal circumstances, there is barely any empirical evidence on the factors that influence the pattern of unrealized fertility in sub-Saharan Africa. Using data from the 2018 Nigeria Demographic and Health Survey, this paper investigates the roles of ethnicity and the sex composition of living children on unrealized fertility in Nigeria. The results show that the odds of having unrealized fertility were higher among Hausa–Fulani women compared with women of other ethnic groups in Nigeria. Also, having daughters only (no sons) was associated with higher odds of unrealized fertility, after controlling for other important covariates. The findings suggest that cultural norms and pronatalism significantly influence the fertility desires of women in Nigeria, even at the end of their reproductive lifespan.

中文翻译：

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尼日利亚的种族、在世儿童的性别构成和未实现的生育率。

虽然在高收入国家的研究表明，未能实现生育愿望与不利的个人环境显着相关，但几乎没有任何经验证据表明影响撒哈拉以南非洲未实现生育模式的因素。本文使用 2018 年尼日利亚人口与健康调查的数据，研究了种族和在世儿童的性别构成对尼日利亚未实现生育率的影响。结果表明，与尼日利亚其他族裔的妇女相比，豪萨-富拉尼族妇女未实现生育的几率更高。此外，在控制了其他重要协变量后，只有女儿（没有儿子）与未实现生育的几率更高有关。