Modelling Childhood Growth Using Fractional Polynomials and Linear Splines | Zendy

Kate Tilling | Zendy; Corrie MacdonaldWallis | Zendy; Debbie A. Lawlor | Zendy; Rachael A. Hughes | Zendy; Laura D. Howe | Zendy

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Modelling Childhood Growth Using Fractional Polynomials and Linear Splines

Author(s) -

Kate Tilling,

Corrie MacdonaldWallis,

Debbie A. Lawlor,

Rachael A. Hughes,

Laura D. Howe

Publication year - 2014

Publication title -

annals of nutrition and metabolism

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.926

H-Index - 81

eISSN - 1421-9697

pISSN - 0250-6807

DOI - 10.1159/000362695

Subject(s) - spline (mechanical) , mathematics , multilevel model , linear model , polynomial , log linear model , mosaic , knot (papermaking) , growth model , statistics , mathematical analysis , geography , structural engineering , archaeology , mathematical economics , chemical engineering , engineering

There is increasing emphasis in medical research on modelling growth across the life course and identifying factors associated with growth. Here, we demonstrate multilevel models for childhood growth either as a smooth function (using fractional polynomials) or a set of connected linear phases (using linear splines).

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