منابع مشابه
delayed childbearing: pregnancy and maternal outcomes
background: women 35-39 years old have a 2–3 fold higher risk of pregnancy-related death than women in their twenties and the risk is even more dramatic for women 40 years and older. objective: the aim of this study was to investigate the association of maternal age with risk of adverse pregnancy and mother outcomes in our setting tehran iran. materials and methods: in this retrospective observ...
متن کاملDelayed Childbearing: Effects on Fertility and the Outcome of Pregnancy
In modern societies, the proportion of women who delay childbearing beyond the age of 35 years has greatly increased in recent decades. They are falsely reassured by popular beliefs that advances in new reproductive technologies can compensate for the age-related decline in fertility. Yet age remains the single most important determinant of male and female fertility, either natural or treated. ...
متن کاملDelayed childbearing in contemporary Spain: trends and differentials.
Data from the 1985 Spanish Survey of Fertility including 8789 women aged 18-49 years is used to examine the timing of 1st births from marriage. Premarital births are excluded. Life table estimates are used to describe trends and differentials. A piecewise constant hazard model, which assumes a constant transition rate within each duration segment (0-7, 8-12, 13-18, 19-24, 25-36, and 37-48 mo...
متن کاملDelayed Childbearing: Effects on Fertility and the Outcome of Pregnancy
In modern societies, the proportion of women who delay childbearing beyond the age of 35 years has greatly increased in recent decades. They are falsely reassured by popular beliefs that advances in new reproductive technologies can compensate for the age-related decline in fertility. Yet age remains the single most important determinant of male and female fertility, either natural or treated. ...
متن کاملDelayed Childbearing: Effects on Fertility and the Outcome of Pregnancy
In modern societies, the proportion of women who delay childbearing beyond the age of 35 years has greatly increased in recent decades. They are falsely reassured by popular beliefs that advances in new reproductive technologies can compensate for the age-related decline in fertility. Yet age remains the single most important determinant of male and female fertility, either natural or treated. ...
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ژورنال
عنوان ژورنال: BMJ
سال: 1995
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.311.7020.1585