2 edition of Basic fertility measures from retrospective birth histories found in the catalog.
Basic fertility measures from retrospective birth histories
Includes bibliographical references.
|Statement||by Vijay Verma.|
|Series||WFS/TECH -- 1407, Technical bulletins / World Fertility Survey -- no. 4, Technical bulletins (World Fertility Survey) -- no. 4.|
|The Physical Object|
|Pagination||98 p. :|
|Number of Pages||98|
The birth rate is the number of live births per of the population per year. There have been fluctuations in births, with three baby booms’ in the 20th century. The first two came after the two world wars ( and ) as returning servicemen and their partners started families that they had postponed during the. MEASURES OF FERTILITY: Quantify the birth performance of a population over a period of time. Used to compare the fertility levels of a number of population, during a particular time interval Exhibit a time trend in fertility in a population in the study of differential fertility .
The various measures of current fertility are calculated for the three-year period just prior to the survey, which roughly corresponds to the calendar period This period was chosen because it retrospective data from the birth histories collected from respondents in a single survey. Fertility levels in sub-Saharan Africa are among the highest in the world. As a result, recent fertility declines in a few countries have gained the attention of researchers and policy makers, and have renewed interest in the factors affecting fertility. As first outlined by Davis and Blake (
The ASFR has two primary uses: (1) as a measure of the age pattern of fertility, that is of the relative frequency of childbearing among women of different ages within the reproductive years, and (2) as an intermediate computation in the derivation of the total fertility rate (TFR).. Evaluators may derive ASFRs from several sources. Taking Charge of Your Fertility, 20th Anniversary Edition: The Definitive Guide to Natural Birth Control, Pregnancy Achievement, and Reproductive Health Toni Weschler out of 5 stars 1,
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Get this from a library. Basic fertility measures from retrospective birth histories. [Vijay Verma]. Author(s): Verma,Vijay K, Title(s): Basic fertility measures from retrospective birth histories/ by Vijay Verma.
Country of Publication: Netherlands Publisher: Voorburg, the Hague: International Statistical Institute, The age-specific fertility rate measures the annual number of births to women of a specified age or age group per 1, women in that age group.
retrospective birth histories. Compared to data. This report evaluates the retrospective estimates of the number of births and birth rates for the United States derivedfrom fertility histories reported in a national population survey conducted.
Fertility Measures Crude Birth Rate (CBR) The number of births occurring in a year per 1, population. The rate is crude in that it related to the total population without regard to age and sex. 2 Mid - Year Population Round 1 population + Round 5 population = where B = total births for a.
Long Abstract Reconstructing Women’s Fertility Histories through retrospective questions: is Sample Survey Data Reliable. Francesca Rinesi1, Marina Attili1 and Basic fertility measures from retrospective birth histories book Iaccarino1 1Italian National Institute of Statistics Aim of the paper During the last decades increasing importance has been given to the study of reproductive histories.
fertility was administered to measure fertility levels, trends, and differentials. The fertility measures presented here are calculated directly from the birth history. All women age were asked to report on all live births.
Questions were asked about children still living at home, those living elsewhere, and those who had died. The age-specific fertility rate measures the annual number of births to women of a specified age or age group per 1, women in that age group Where x, x+n refers to age, usually 5-year age.
COVENANT UNIVERSITY DEPT. OF ECONS & DEV. STUDIES DEMOGRAPHIC DATA EVALUATION TOPIC: FERTILITY MEASURES LECTURER: MISS ADETORO GBEMISOLA W. DEFINITION OF TERMS Fertility = Production of a live birth (natality) Infertility = Inability to produce a live birth Parity = Number of children born alive to a woman Gravidity = Number of pregnancies a woman has had.
fertility preferences, the ideal and actual number of children, and preference for sons or daughters. Also, data from the three rounds of NFHS surveys allow estimation of fertility trends. Most of the fertility measures presented in this chapter are based on the complete birth histories collected from women age years.
One such extension is to apply the same logic as the Brass P/F ratio method to the birth histories, allowing a detailed investigation of the fertility data by age, period and cohort. The method yields period estimates of total fertility (TF) for either the five-year period or the two five-year periods preceding collection of the data.
The cohort fertility tables also provide the percentage of childless women. The tables will be periodically updated with new data for following years. In addition, cohort fertility measures for other race and Hispanic origin groups may be added in the future.
Cohort Fertility Tables Documentation. Event history analysis seems ideally suited for the analysis of World Fertility Survey, WFS, data, which consists of full birth histories and related information, but it has not been much used for.
Summary measures. The summary measures are crude birth rates, total fertility rates (including completed cohort fertility), tempo-adjusted TFR, mean ages at birth, cohort parity progression ratios, and standard deviation in mean ages at birth. The crude birth rate is a simple ratio of total live births to total population in a given year.
Crude birth rates below about 15 per 1, are usually regarded as low; those above about 35 are high. Examples of extreme values are 9 for Spain in and 52 for Kenya in the s. Pros. The crude birth rate requires less detailed data than other fertility measures and data that are more likely to be available for a very recent period.
Two retrospective cross-sectional studies (Johansson et Interviews were designed to take approximately 35 minutes and included detailed reproductive histories, demographic measures, and attitudinal measures, including the fertility-specific distress measure employed in this study.
regardless of whether there was a subsequent live birth. Zaba, S. Gregson, in International Encyclopedia of the Social & Behavioral Sciences, Changes in Population Structure. Changes in the birth rate can come about not only because of changes in age-specific fertility rates but also because of structural changes in the n et al.
() showed that HIV-related mortality will tend to make the population structure younger. Period fertility vs. cohort fertility. The following table lists the main contrasts between the period and cohort approach to measuring fertility. Both have their own uses and applications and give a different view of the quantum of fertility.
Together they allow a more rounded view of what is happening to fertility. Third, as well as asking these summary questions on fertility, surveys often collect a detailed birth history from mothers.
Such histories ask about each child’s date of birth, vital status (whether the child is still living) and – if the child is dead – date of death. The data obtained can be used to make detailed estimates of fertility. Period measures take a cross section of the population at one point in time and use those data to compute a measure of fertility.
Cohort measures attempt to take a group of women who share a characteristic, such as year of birth or marriage, and compute the fertility of that specific group.
The fertility rate measures the number of births occurring per 1, women between the ages of 15 and 44 in a particular year; birth rates refer to this measure within particular age groups.
Tracking trends in fertility and birth rates is essential in planning for the current and future needs of multiple generations. Sustained high fertility.fertility and some of their statistical measures • • •• 69 Factor analysis on (i) all the 73 countries, (ii) 36 basic fertility pattern of a specific developed country.
19 Factors (Ka) to estimate the mean age at reproduction in five-year age groups for different basic age patterns. Taking Charge of Your Fertility is one of the most well known books on twentieth anniversary edition is updated with up-to-date medical advice and .