Book Chapter

Additive decomposition of vital rates from grouped data

Camarda, C. G., Gampe, J., Eilers, P. H. C.

In: Komarek, A., Nagy, S. (Eds.): Proceedings of the 27th International Workshop on Statistical Modelling, Prague 16 - 20 July, 2012, 57-62 (2012)
Prague, Czech Republic: Charles University, Department of Probability and Mathematical Statistics.

ISBN 978-80-263-0250-6

Keywords: age groups, smoothing


Age specific rates are often given only for age groups that can be rather coarse. Furthermore, they tend to show complex patterns, which often can be explained by contributions of several subgroups, such as infants or the elderly. A penalized composite link model is used to decompose the complex rate trajectory into smooth additive components from grouped data. Monotonicity or shape constraints can be incorporated by special penalty matrices.