Nature

Regression to the mean, apparent data errors and biologically extraordinary results: letter regarding ‘changes in telomere length 3–5 years after gastric bypass surgery’

Given the extraordinary claim, we were eager to examine the supporting evidence and have noticed several issues that cause us to find the claim doubtful. In the low baseline TL subgroup (N=17), ...
Nature

Response to ‘Regression to the mean, apparent data errors, and biologically extraordinary results’

We thank Dr. Smith and colleagues for their careful review of published medical literature. We agree that scientific rigor is of greatest importance. However, we disagree with their review of ‘Changes ...
JSTOR Daily

Estimation and Inference for Logistic Regression with Covariate Misclassification and Measurement Error in Main Study/Validation Study Designs

In epidemiological studies, continuous covariates often are measured with error and categorical covariates often are misclassified. Using the logistic regression ...