RM4 - EXPLORING TIME-DEPENDENT VARIATION OF PATIENT-REPORTED OUTCOME SCORES ACROSS DIFFERENT TIME-POINTS FOR PATIENTS WITH MULTIPLE CONDITIONS: A MIXED METHODS LONGITUDINAL STUDY

reflections on taught courses of the iranian ma program in english translation: a mixed-methods study

the issue of curriculum and syllabus evaluation and revision has been in center of attention right from when curriculum came into attention of educational institutions. thus everywhere in the world in educational institutions curricula and syllabi are evaluated and revised based on the goals, the needs, existing content, etc.. in iran any curriculum is designed in a committee of specialists and...

Comparing Time-Use Estimates of Two Different Time Diary Methods

Objectives: Time-use has become an important field of research in social and medical sciences. Time diary is the most popular method for measuring time-use that has 2 different methods of administration including yesterday and tomorrow diary. The present study aimed to compare these methods of measuring time-use.  Methods: This cross-sectional comparative study was conducted on 256 under 5-yea...

Analysis of longitudinal studies with repeated outcome measures: adjusting for time-dependent confounding using conventional methods.

Estimation of causal effects of time-varying exposures using longitudinal data is a common problem in epidemiology. When there are time-varying confounders, which may include past outcomes, affected by prior exposure, standard regression methods can lead to bias. Methods such as inverse probability weighted estimation of marginal structural models have been developed to address this problem. Ho...

Meta-Analysis of Effect Sizes Reported at Multiple Time Points Using General Linear Mixed Model

Meta-analysis of longitudinal studies combines effect sizes measured at pre-determined time points. The most common approach involves performing separate univariate meta-analyses at individual time points. This simplistic approach ignores dependence between longitudinal effect sizes, which might result in less precise parameter estimates. In this paper, we show how to conduct a meta-analysis of...

Exact solutions for the flow of a generalized second grade due to a Longitudinal quadratic time-dependent shear stress