A new method for investigating the relation between change and initial value in longitudinal blood pressure data. I. Description and application of the method.

@article{Svrdsudd1978ANM,
  title={A new method for investigating the relation between change and initial value in longitudinal blood pressure data. I. Description and application of the method.},
  author={Kurt Sv{\"a}rdsudd and Nils Blomqvist},
  journal={Scandinavian journal of social medicine},
  year={1978},
  volume={6 2},
  pages={85-95}
}
The relation between change and initial value is of great interest in longitudinal studies. With variables containing random errors (short-term intra-individual variations and measurement errors) the directly computed relation is however, biased by the regression towards the mean phenomenon. Earlier proposed solutions of the problem are unsatisfactory. In this paper the regression towards the mean phenomenon is described and a new method is proposed by which the error caused by the regression… CONTINUE READING