Analysing controlled trials with baseline and follow up measurements

By Andrew J. Vickers, Douglas G. Altman. British medical journal, 2001

2,065 citations recorded by the source corpus.

Subfields: Economics and Econometrics, Pharmacology, Statistics and Probability

View Paper: https://www.semanticscholar.org/paper/3b045d2df1156720dd80820c26aec4d1e8b68adf

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Citations in the corpus

Plasticity of Brain Networks in a Randomized Intervention Trial of Exercise Training in Older Adults (2010, positive): “of groups that is unaffected by baseline differences (Vickers and Altman, 2001).”
The effect of acute cognitively engaging physical activity breaks on children's executive functions: Too much of a good thing? (2018, methodology): “To control for potential baseline imbalances, pre-test measures of the dependent variables were used as covariates (Vickers & Altman, 2001).”
Flash Glucose-Sensing Technology as a Replacement for Blood Glucose Monitoring for the Management of Insulin-Treated Type 2 Diabetes: a Multicenter, Open-Label Randomized Controlled Trial (2016, methodology): “Analysis of covariance was used to adjust for chance imbalances in baseline measurements between the treatment groups [23], adjusted means were”
Efficacy of an evidence-based cognitive stimulation therapy programme for people with dementia (2003, methodology): “An intention-totreat analysis was conducted and analysis of covariance (ANCOVA) was chosen as the method of analysis because it controls for variability in pre-test scores (the ‘covariate’; Vickers & Altman, 2001).”
Attention Restoration Theory: A systematic review of the attention restoration potential of exposure to natural environments (2016, neutral): “None of the studies that measured outcomes at baseline reported using the correct method to adjust for baseline imbalance, analysis of covariance (ANCOVA) (Vickers and Altman 2001).”
The Effect of a Nature-Based Environmental Education Program on Children’s Environmental Attitudes and Behaviors: A Randomized Experiment with Primary Schools (2020, methodology): “This second step mirrors an analysis of covariance [48].”
Meta-analysis of individual participant data: rationale, conduct, and reporting (2010, methodology): “Briefly, they involve fitting linear regression models that estimate the treatment effect on systolic blood pressure, having adjusted for systolic blood pressure at baseline. This “analysis of covariance” approach is the most appropriate method for analysing the change from baseline in a continuous ”