Nonlinear growth curve modeling using penalized spline models: A gentle introduction.
Sign Up to like & getrecommendations! Published in 2019 at "Psychological methods"
DOI: 10.1037/met0000193
Abstract: This didactic article aims to provide a gentle introduction to penalized splines as a way of estimating nonlinear growth curves in which many observations are collected over time on a single or multiple individuals. We… read more here.
Keywords: spline models; penalized spline; nonlinear growth; gentle introduction ... See more keywords
Joint penalized spline modeling of multivariate longitudinal data, with application to HIV-1 RNA load levels and CD4 cell counts.
Sign Up to like & getrecommendations! Published in 2020 at "Biometrics"
DOI: 10.1111/biom.13339
Abstract: Motivated by the need to jointly model the longitudinal trajectories of HIV viral load levels and CD4 counts during the primary infection stage, we propose a joint penalized spline modeling approach that can be used… read more here.
Keywords: levels cd4; penalized spline; load levels; joint penalized ... See more keywords