It has long been recognized that sample size calculations for cluster randomized trials
require consideration of the correlation between multiple observations within the same …

Success in school and the labour market relies on more than high intelligence. Associations
between 'non-cognitive'skills in childhood, such as attention, self-regulation and …

Abstract Background Cluster-randomized trials (CRTs) involve randomizing groups of
individuals (eg hospitals, schools or villages) to different interventions. Various approaches …

Male sex, early life chemical exposure and the brain aromatase enzyme have been
implicated in autism spectrum disorder (ASD). In the Barwon Infant Study birth cohort (n …

Importance There is limited evidence on the optimal strategy for liberating infants and
children from invasive mechanical ventilation in the pediatric intensive care unit. Objective …

Background There is evidence suggesting that quarantine might have undesirable
psychological impacts on the patients. Therefore, it is important to seek for ways to increase …

Not only do cluster randomized trials require a larger sample size than individually
randomized trials, they also face many additional complexities. The potential for …

Weather conditions are an important determinant of agricultural factor input, particularly
labor allocation. The availability of weather forecasts can therefore lead to efficiency gains in …

Background: Binary outcomes—which have two distinct levels (eg, disease yes/no)—are
commonly collected in global health research. The relative association of an exposure (eg, a …

Background Healthcare costs are rising, and a substantial proportion of medical care is of
little value. De-implementation of low-value practices is important for improving overall …