方法对比

	Coale Fertility Indices	Child-Woman Ratio
领域	人口学	人口学
方法族	Process / pipeline	Process / pipeline
起源年份	1969	1900
提出者	Ansley J. Coale (Princeton European Fertility Project)	Established demographic indicator (census-based)
类型	Standardized indices of fertility relative to a maximum (Hutterite) schedule	Indirect fertility index from a single census age-sex distribution
开创性文献	Coale, A. J., & Watkins, S. C. (Eds.). (1986). The Decline of Fertility in Europe. Princeton University Press. ISBN: 9780691629278	Preston, S. H., Heuveline, P., & Guillot, M. (2001). Demography: Measuring and Modeling Population Processes. Blackwell. ISBN: 9781557864512
别名	Coale's Indices, Princeton European Fertility Project Indices, Indices of Overall, Marital and Nuptiality Fertility	CWR, Child-to-woman ratio, Census fertility ratio, Çocuk-Kadın Oranı
相关	4	4
摘要	Coale's fertility indices are a set of standardized measures — If (overall fertility), Ig (marital fertility), Ih (nonmarital fertility), and Im (proportion married, an index of marriage) — that express a population's childbearing relative to the highest reliably recorded natural-fertility schedule, that of the Hutterites. Devised by Ansley Coale for the Princeton European Fertility Project, they hold the maximum age schedule of fertility fixed so that differences between populations reflect real differences in fertility and marriage rather than age structure, and they tie together into a single identity linking overall fertility to marriage and to fertility within and outside marriage.	The child-woman ratio is the number of young children, usually those under five, per woman of reproductive age in a population. Computed from a single census age-sex distribution, it is the simplest indirect indicator of fertility, designed for settings where birth registration is absent or unreliable. Because young children are the surviving product of recent births, their number relative to potential mothers serves as a rough proxy for the level of childbearing over the preceding few years.