๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Repeated measures in clinical trials: simple strategies for analysis using summary measures

โœ Scribed by Stephen Senn; Lynda Stevens; Nish Chaturvedi


Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
142 KB
Volume
19
Category
Article
ISSN
0277-6715

No coin nor oath required. For personal study only.

โœฆ Synopsis


The summary measures approach to analysing repeated measures is described. The circumstances under which it can be advantageous to use such measures are considered. Strategies for baseline adjustment where there are multiple baselines are examined, as is the choice of appropriate summary statistic. A compromise trend/mean measure, regression through the origin, is proposed as being useful under some circumstances. An analysis using this measure is illustrated with a suitable example.


๐Ÿ“œ SIMILAR VOLUMES


Longitudinal data analysis (repeated mea
โœ Paul S. Albert ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 227 KB ๐Ÿ‘ 1 views

Longitudinal data is often collected in clinical trials to examine the e!ect of treatment on the disease process over time. This paper reviews and summarizes much of the methodological research on longitudinal data analysis from the perspective of clinical trials. We discuss methodology for analysin

Linearly divergent treatment effects in
โœ Lars J. Frison; Stuart J. Pocock ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 212 KB ๐Ÿ‘ 1 views

In many randomized clinical trials with repeated measures of a response variable one anticipates a linear divergence over time in the difference between treatments. This paper explores how to make an efficient choice of analysis based on individual patient summary statistics. With the objective of e

On the appropriateness of marginal model
โœ J. K. Lindsey; P. Lambert ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 291 KB ๐Ÿ‘ 1 views

Although models developed directly to describe marginal distributions have become widespread in the analysis of repeated measurements, some of their disadvantages are not well enough known. These include producing profile curves that correspond to no possible individual, possibly showing that a trea

Planning and analysis of repeated measur
โœ Weichung J. Shih; Hui Quan ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 107 KB ๐Ÿ‘ 1 views

In this paper we explore the possible reasons why medical papers reporting clinical trials sponsored by the pharmaceutical industry often analyse repeated measures data at certain key time-points instead of employing sophisticated models of repeated measures proposed by many statisticians. A survey