For randomised population trials the unit of randomisation is normally the individual person. In some situations, however, investigators take other groups as basic unit and one such design is cluster ...

This was a pragmatic cluster randomised controlled trial with randomisation, at the level of the general practice, to GRAIDS or current ‘best practice’ (Campbell et al, 2000). Outcomes were measured ...

The NHS Bowel Cancer Screening Programme in England offers biennial guaiac faecal occult blood testing (gFOBt). There is a socioeconomic gradient in participation and socioeconomically disadvantaged ...

Objectives: Cluster randomised trials, in which groups of individuals are randomised, are increasingly being used in the health field. Adopting a clustered approach has implications for the design of ...

Objective: To investigate whether a 6-month neuromuscular warm-up programme could improve muscle power, balance, speed and agility. Design: Cluster randomised controlled study. Setting: 27 top level ...

Correspondence to Dr Jenny Jacobsson, Department of Health, Medicine and Caring Sciences, Linköping University, Linkoping 581 83, Sweden; jenny.jacobsson{at}liu.se Objectives To examine whether ...

Objective To assess the feasibility of conducting a cluster randomised controlled trial comparing the effects of Advanced ...