JSTOR Daily

Methodologic Issues in Hospital Epidemiology. IV. Risk Ratios, Confounding, Effect Modification, and the Analysis of Multiple Variables

Jonathan Freeman, Donald A. Goldmann and John E. McGowan, Jr. Most information in hospital epidemiology comes from observational studies of hospitalized patients, not from planned experiments. Data ...
CMAJ

Adjustment for continuous confounders: an example of how to prevent residual confounding

Control for confounding is crucial in causal observational studies. However, the modelling of continuous confounders has not received much attention. This is probably because in causal research the ...
Nature

Study design II. Issues of chance, bias, confounding and contamination

In the first article in the series I explained the importance of study design and gave an overview of the main types of design. Here, I describe the ways in which the results of a study may deviate ...
Nature

Association of symptoms of attention-deficit/hyperactivity disorder with childhood overweight adjusted for confounding parental variables

There have been numerous reports on association between attention-deficit/hyperactivity disorder (ADHD) and overweight/obesity in children and adolescents; however ...