This paper examines the adverse effects of adolescent childbearing on early childhood mortality in Bangladesh in mother-fixed-effects regressions using individual mortality outcomes of 300,000 children. Children born to young mothers (child brides in Bangladesh) suffer from higher mortality in the first year of life than their siblings born later. The survival chances of children born to mothers aged 15−49 years are 48–81 % higher in infant period as compared to their siblings born in mother’s early adolescence (10−14 years). In poor households, these survival effects extend up to the fifth birthday, especially in the poorest households or among uneducated mothers. This evidence points towards a biological channel, probably low birth weight, as the main contributing factor in the first year of life. In the post-infant period, favorable socio-economic factors (wealth, education) seem to compensate the biological disadvantage of adolescent births. Adolescent pregnancies lead annually to estimated 18,700 under-5 deaths in Bangladesh.

本文使用300,000名儿童的个人死亡率结果，通过母亲固定效应回归研究了孟加拉国青少年生育的不利影响。年轻母亲所生的孩子（孟加拉国的儿童新娘）在出生后第一年的死亡率要高于后来出生的兄弟姐妹。15-49岁母亲出生的孩子在婴儿期的存活机会比其母亲青春期早期（10-14岁）出生的兄弟姐妹高48-81％。在贫困家庭中，这些生存影响一直持续到五岁生日，特别是在最贫困家庭或未受过教育的母亲中。该证据表明，可能是低出生体重的生物学途径，是生命第一年的主要促成因素。在婴儿期之后 有利的社会经济因素（财富，教育）似乎可以弥补青春期出生的生物学缺陷。青少年怀孕每年导致孟加拉国估计18,700名5岁以下儿童死亡。