Document Detail

Experiments in modelling recent Danish fertility curves.
MedLine Citation:
PMID:  7227587     Owner:  NLM     Status:  MEDLINE    
This paper reports the outcome of an exercise in curve fitting to annual sets of Danish age-specific fertility rates for the years 1962 to 1971 by means of least squares. Functions fitted were a cubic spline, the Hadwiger and Coale-Trussell functions, the gamma and beta densities, two versions of a polynomial, and two of Brass's relational procedures, as well as the Gompertz curve. The spline function fitted all curves far better than any of the others. The Coale-Trussell procedure and gamma density were about equal, followed by the Hadwiger function. All of these functions fit the data wells. One of the polynomials fit reasonably well, but the rest of the functions were less accurate.
J M Hoem; D Madsen; J L Nielsen; E M Ohlsen; H O Hansen; B Rennermalm
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Demography     Volume:  18     ISSN:  0070-3370     ISO Abbreviation:  Demography     Publication Date:  1981 May 
Date Detail:
Created Date:  1981-07-23     Completed Date:  1981-07-23     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0226703     Medline TA:  Demography     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  231-44     Citation Subset:  IM    
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MeSH Terms
Age Factors
Middle Aged
Models, Theoretical
Statistics as Topic

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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