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At least 19 recordsLinked to original sources
PubMed1992

An overview of demographic analysis as a method for evaluating census coverage in the United States.

"Since the 1950 U.S. census, demographic methods based on the fundamental balancing equation of demography have played an important role in the evaluation of the census net undercount. Application of this set of methods, called demographic analysis, results in national estimates of the net undercount for age-race-sex groups. Although results of demographic analysis are readily available in Bureau of the Census publications, the procedures used to estimate each of the components of population change are less well-known. In this paper we review the historical foundation of demographic analysis, beginning with Coale's 1950 census evaluation project and concluding with the recent evaluation of the 1990 census. We examine each of the components of the method, how their estimation has changed over time, and how they were estimated for the 1990 census."

Americas↗
PubMed1993

Estimation of population coverage in the 1990 United States census based on demographic analysis.

"This article presents estimates of net coverage of the national population in the 1990 [U.S.] census, based on the method of demographic analysis. The general techniques of demographic analysis as an analytic tool for coverage measurement are discussed, including use of the demographic accounting equation, data components, and strengths and limitations of the method. Patterns of coverage displayed by the 1990 estimates are described, along with similarities or differences from comparable demographic estimates for previous censuses....A final section presents the results of the first statistical assessment of the uncertainty in the demographic coverage estimates for 1990." Comments by Clifford C. Clogg and Christine L. Himes (pp. 1,072-4) and Jeffrey S. Passel (pp. 1,074-7) and a rejoinder by the authors (pp. 1,077-9) are included.

Americas↗
PubMed1984

[A demographic analysis of multiple contingencies].

Using the multidimensional model developed by Andrei Rogers, the authors formulate a method for analyzing the interaction between and the multiplicity of certain behavior patterns such as migration. "The present article attempts to present a conceptual approach which extends classical demographic analysis to multiple phenomena or which adapts the analysis of mobility to demographic methods." (summary in ENG, SPA)

Behavior↗
PubMed2003

Demographic analysis from summaries of an age-structured population.

Demographic analyses of age-structured populations typically rely on life history data for individuals, or when individual animals are not identified, on information about the numbers of individuals in each age class through time. While it is usually difficult to determine the age class of a randomly encountered individual, it is often the case that the individual can be readily and reliably assigned to one of a set of age classes. For example, it is often possible to distinguish first-year from older birds. In such cases, the population age structure can be regarded as a latent variable governed by a process prior, and the data as summaries of this latent structure. In this article, we consider the problem of uncovering the latent structure and estimating process parameters from summaries of age class information. We present a demographic analysis for the critically endangered migratory population of whooping cranes (Grus americana), based only on counts of first-year birds and of older birds. We estimate age and year-specific survival rates. We address the controversial issue of whether management action on the breeding grounds has influenced recruitment, relating recruitment rates to the number of seventh-year and older birds, and examining the pattern of variation through time in this rate.

Aging↗
PubMed1976

A review of small canned computer programs for survey research and demographic analysis.

A variety of small canned computer programs for survey research and demographic analysis appropriate for use in developing countries are reviewed in this article. The programs discussed are SPSS (Statistical Package for the Social Sciences); CENTS, CO-CENTS, CENTS-AID, CENTS-AIE II; MINI-TAB EDIT, FREQUENCIES, TABLES, REGRESSION, CLIENT RECORD, DATES, MULT, LIFE, and PREGNANCY HISTORY; FIVFIV and SINSIN; DCL (Demographic Computer Library); MINI-TAB Population Projection, Functional Population Projection, and Family Planning Target Projection. A description and evaluation for each program of uses, instruction manuals, computer requirements, and procedures for obtaining manuals and programs are provided. Such information is intended to facilitate and encourage the use of the computer by data processors in developing countries.

Computers↗
PubMed2000

Motor neuron diseases in the university hospital of Fortaleza (Northeastern Brazil): a clinico-demographic analysis of 87 cases.

In this retrospective (1980-1998) study, we have analyzed clinico-demographically, from the records of the University Hospital of Fortaleza (Brazil), a group of 87 patients showing signs and symptoms of motor neuron diseases (MNDs). Their diagnosis was determined clinically and laboratorially. The WFN criteria were used for amyotrophic lateral sclerosis (ALS) diagnosis. The clinico-demographic analysis of the 87 cases of MNDs showed that 4 were diagnosed as spinal muscular atrophy (SMA), 5 cases as ALS subsets: 2 as progressive bulbar paralysis (PBP), 2 as progressive muscular atrophy (PMA) and 1 as monomelic amyotrophy (MA), and 78 cases of ALS. The latter comprised 51 males and 27 females, with a mean age of 42.02 years. They were sub-divided into 4 groups according to age: from 15 to 29 years (n= 17), 30 to 39 years (n= 18), 40 to 69 years (n= 39) and 70 to 78 years (n= 4). From the 78 ALS patients, 76 were of the classic sporadic form whilst only 2 were of the familial form. The analysis of the 87 patients with MNDs from the University Hospital of Fortaleza showed a predominance of ALS patients, with a high number of cases of juvenile and early onset adult sporadic ALS.

Adolescent↗
PubMed2000

Demographic analysis of the washington regional primate research center pigtailed macaque colony, 1967-1996.

This work presents the results of a demographic analysis of 30 years of breeding records from the University of Washington's recently closed Primate Field Station at Medical Lake, Washington. Summaries of population growth, age-specific fertility and mortality rates, first-year survival, and seasonality of reproduction are presented, as well as an analysis of survival by decade. In addition, we present data on interbirth intervals in this population. In general, pigtailed macaques represent a typical Old World monkey pattern of age-specific fertility and mortality, with a few minor exceptions. We suggest that pigtailed macaques are most similar to rhesus and Barbary macaques, and that Japanese and bonnet macaques differ somewhat in their demographics.

Age Factors↗
PubMed2005

Nonagenarians and centenarians in Switzerland, 1860-2001: a demographic analysis.

STUDY OBJECTIVE: To explore the rapid rise of the extremely old population, showing the magnitude of the increase and identifying demographic mechanisms underlying this increase. DESIGN: Demographic analysis using census data, yearly population estimates, and mortality statistics. SETTING: Switzerland 1860-2001. MAIN RESULTS: Indicators suggest a strong increase in the number of nonagenarians and centenarians in Switzerland as compared with other countries. The increase is mostly attributable to the decline in mortality after age 80. This decline started in the 1950s. CONCLUSION: Nonagenarians and centenarians constitute a new population, which became sizeable after 1950 in Switzerland. There is a need to monitor this population with appropriate demographic and epidemiological indicators.

Aged↗
PubMed1993

Using information from demographic analysis in post-enumeration survey estimation.

"Population estimates from the 1990 Post-Enumeration Survey (PES), used to measure decennial census undercount, were obtained from dual system estimates (DSE's) that assumed independence within strata defined by age-race-sex-geography and other variables. We make this independence assumption for females, but develop methods to avoid the independence assumption for males within strata by using national level sex ratios from demographic analysis (DA).... We consider several...alternative DSE's, and use DA results for 1990 to apply them to data from the 1990 U.S. census and PES."

Americas↗
PubMed1990

A demographic analysis of the population growth of states, 1950-1980.

Factors affecting regional differences in population growth in the United States are explored. "In this study, we estimated the contributions of births, deaths, and migration to changes in population size between 1950 and 1980 for the 48 contiguous states in the United States. We found that population momentum (i.e., the growth that would occur in a closed population if fertility and mortality rates remained constant) had the largest effect on population growth in most states, but that differences in net migration were the major cause of state-to-state differences in growth rates. We also found that net migration has been gaining in importance compared to natural increase as a component of population growth. We expect this trend to continue in coming decades." This is a revised version of a paper originally presented at the 1988 Annual Meeting of the Population Association of America (see Population Index, Vol. 54, No. 3, Fall 1988, p. 429).

Americas↗
PubMed1993

Statistical graduation in local demographic analysis and projection.

"This paper considers parametric graduation for mortality, fertility and migration with particular reference to the development of parameterized local and regional demographic projections. Parametric graduations facilitate comparisons of demographic schedules across many areas and across time points--a feature which can be used to advantage in making forecasts of the three demographic components and thus in setting the assumptions for projections. Particular methodological issues raised are the questions of parsimony in fit and...of overdispersion in relation to binomial or Poisson assumptions. The analysis is illustrated with cross-sectional material for the 32 London boroughs and with time series at the level of Greater London."

Demography↗
PubMed1988

[The demographic analysis of human fertility using life history data].

"In this contribution we show how the analysis of data from the German Life History Study sheds light on and extends the official statistics on fertility trends in West Germany. First, the data gathered for the three cohorts 1929-31, 1939-41, and 1949-51, are proved for their representativeness. Then birth rates of the first, second, third, and following order for women and men are presented. At last we discuss results of simple survival analyses of the entry into parenthood for different sociostructural groups of men and women in our cohorts." (SUMMARY IN ENG)

Birth Rate↗
PubMed2003

A demographic analysis of the origin of papers published in Obstetrics and Gynecology.

OBJECTIVE: To ascertain temporal trends in the number and share of papers originating from work sites in the ten districts of The American College of Obstetricians and Gynecologists (ACOG) and to identify demographic predictors of variance among the districts. METHODS: The work sites of the first authors of papers published in Obstetrics & Gynecology were determined for selected years since 1985 and sorted by ACOG district. Three related journals (Fertility and Sterility, Gynecologic Oncology, and the American Journal of Obstetrics and Gynecology) were similarly analyzed for the year 2000. Demographic variables, including numbers of ACOG Fellows, residencies, subspecialty fellowships, and medical schools, were analyzed with multivariable regression for the most predictive variables for number of papers among ACOG districts. RESULTS: The number and share of papers published in Obstetrics & Gynecology written by authors working in ACOG districts have been declining steadily since 1985, in contrast to the number of papers arising from locations outside of ACOG districts. Analysis of demographic factors for number of papers from four specialty journals in the year 2000 revealed that the number of medical schools in the district (R(2) = 0.79) was the most predictive (P <.001). CONCLUSION: Efforts to identify and correct factors associated with a decline in the number of published papers should focus on conditions in medical schools.

Bibliometrics↗