Skip directly to searchSkip directly to the site navigationSkip directly to the page's main content

Important Facts for Birth Outcomes: Total Fertility Rate

Definition

The Total Fertility Rate indicates the average number of births to a hypothetical cohort of 1,000 women if they experienced the age-specific birth rates observed in a given year.

Numerator

For Total Fertility Rate, the numerator is the sum of age-specific fertility rates in five-year age groups for women of reproductive age (15-44 years) * 5

Denominator

Total number of women of reproductive age

Why Is This Important?

Approximately 10% of problems with fertility are unknown and environmental contaminants including endocrine disruptors have been hypothesized as major contributors. The case of DES revealed environmental contamination can have multi-generational impacts on reproduction that need to be studied and tracked long term. Several indicators have been used to track fertility on a global, national, state and local level. Indicators most commonly used are the general fertility rate (GFR) which is defined as the number of live births divided by the total number of women of "reproductive age" (15-44 years), and the total fertility rate (TFR). The total fertility rate differs from the general fertility rate in that it adjusts for age-specific differences in fertility and shows the potential impact of current fertility patterns on reproduction allowing for more valid comparisons of rates across time and space.

Other Objectives

CDC Environmental Public Health Tracking, Nationally Consistent Data and Measures (EPHT NCDM)
The NM EPHT website is supported by Cooperative Agreement Number, 6 NUE1EH001354 (previously, 5 U38EH000949), funded by the Centers for Disease Control and Prevention (CDC). Its contents are solely the responsibility of the authors and do not necessarily represent the official views of CDC or do not necessarily reflect the official policies of the Department of Health and Human Services, nor does the mention of trade names, commercial practices, or organizations imply endorsement by the U.S. Government. The information published on this website may be reproduced without permission. Please use the following citation: " Retrieved Wed, 20 November 2019 4:13:35 from New Mexico EPHT Tracking Public Web site: https://nmtracking.org/ ".

Content updated: Thu, 5 Jun 2014 18:11:36 MDT