Using parity-progression ratios to estimate the effect of female sterilization on fertility

• Published in: Studies in family planning Vol. 25; no. 6 Pt 1; p. 332
• Main Authors: Stupp, P W, Samara, R
• Format: Journal Article
• Language: English
• Published: United States 01.11.1994
• Subjects: Adolescent; Adult; Birth Rate - trends; Developing Countries; Ecuador - epidemiology; Family Planning Services - trends; Female; Health Knowledge, Attitudes, Practice; Humans; Infant, Newborn; Male; Middle Aged; Models, Statistical; Parity; Population Control - trends; Pregnancy; Sterilization, Tubal - statistics & numerical data; Ecuador; Family Planning Programs; South America; Americas; Ecuador; Family Planning Program Evaluation; Demographic Surveys; Methodological Studies; Family Planning; Latin America; Demographic And Health Surveys; World Fertility Surveys; Births Averted; Fertility; Fertility Measurements; Fertility Rate; Parity Progression Ratio; Population; Sterilization, Sexual; Birth Rate; Developing Countries; Fertility Surveys; Demographic Factors; Parity; Population Dynamics
• ISSN: 0039-3665; 1728-4465
• DOI: 10.2307/2137877

In this article, a new methodology that employs parity-progression ratios to estimate the effect of female sterilization on fertility is described, and results using data from Ecuador are compared to those obtained using a previously existing approach that classifies women by marital duration. The methods differ in how they disaggregate marital fertility and in the assumption they make about what the subsequent fertility of sterilized women would have been if they had not been sterilized. The analysis of the Ecuadoran data shows that the estimate of births averted by sterilization has diminished over time, even as sterilization prevalence has been increasing. This situation is attributed to a decline in the fertility of nonsterilized women resulting from increased use of reversible methods of contraception.