k 2008

Dynamic Phenotype Method - Analysis of Child and Adolescent Longitudinal Growth Data

POSPÍŠIL, Zdeněk and Ludvík NOVÁK

Basic information

Original name

Dynamic Phenotype Method - Analysis of Child and Adolescent Longitudinal Growth Data

Name in Czech

Metoda dynamického fenotypu - analýza longitudinálních dat růstu

Authors

POSPÍŠIL, Zdeněk (203 Czech Republic, guarantor) and Ludvík NOVÁK (203 Czech Republic)

Edition

European Conference on Mathematical and Theoretical Biology, 2008

Other information

Language

English

Type of outcome

Presentations at conferences

Field of Study

10103 Statistics and probability

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

is not subject to a state or trade secret

RIV identification code

RIV/00216224:14310/08:00026235

Organization unit

Faculty of Science

Keywords in English

growth; body length; body weight; longitudinal data; dynamic phenotyp

Tags

International impact
Changed: 8/7/2008 13:29, prof. RNDr. Zdeněk Pospíšil, Dr.

Abstract

V originále

The human growth (measured by time dependent body length or body weight) from birth to maturity is divided into three separate components - infancy, childhood and puberty. Each of the component is affected by two genetically determined processes - anabolism and catabolism. Hence, the growth should be described at least by nine parameters, namely the size at birth, two time instants separating the growth curve components and three pairs of parameters characterizing the anabolism and catabolism processes for each of the growth curve component. But two continuity conditions reduce the number of parameters to seven. The aim of the contribution is to present a growth model expressed by a piecewise logistic function, to describe a method for estimation of its parameters from data and to demonstrate - using data collected in the Brno (Czech Republic) longitudinal study of child and adolescent growth - that the seven parameters characterize an individual growth in a sufficient way.

Links

LC06024, research and development project
Name: Centrum Jaroslava Hájka pro teoretickou a aplikovanou statistiku
Investor: Ministry of Education, Youth and Sports of the CR, Jaroslav Hájek Center for Theoretical and Applied Statistics