Gilbert Welch and colleagues have written an interesting essay contrasting continuous and
categorical approaches to modelling the relation between exposure and health effects. 1 …

Gilbert Welch and colleagues have written an interesting essay contrasting continuous and
categorical approaches to modelling the relation between exposure and health effects. 1 …

Wilcox and Russell (1) presented a graphic demonstration and simulation study to illustrate
how standardizing for birthweight can be misleading when the populations being compared …

There is increasing emphasis in medical research on the fetal and childhood antecedents of
chronic complex diseases, and how exposures across the life course interact with one …

Weinberg (1) highlights the challenges and pitfalls faced when statistically analyzing data
from observational (nonrandomized) studies to explore causal hypotheses. She reminds us …

In the 1939 Metro-Goldwyn-Mayer film, The Wizard of Oz, the benevolent Wizard is asked to
solve the existential dilemmas of the Scarecrow, Tin Man, and Cowardly Lion. Seemingly …

Abstract Frisbie, Forbes, and Pullum (1996) show that it is meaningful to account for low birth
weight, preterm delivery, and intrauterine growth-retardation when analyzing differences in …

Preterm delivery is a powerful predictor of newborn morbidity and mortality. Such problems
are due to not only immaturity but also the pathologic factors (such as infection) that cause …

There is increasing emphasis in medical research on fetal and childhood antecedents of
disease, and how these interact with other exposures throughout the life course to influence …

Small babies from a population with higher infant mortality often have better survival than
small babies from a lower-risk population. This phenomenon can in principle be explained …