title: Dropouts and sub-groups--statistics can help but not cure.
authors.affiliation: Arthritis Research UK Primary Care Centre, Keele University, Keele, UK Centre for Health Sciences, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, UK Arthritis Research UK Primary Care Centre, Keele University, Keele, UK.
authors.forename: P
authors.initials: P
authors.lastname: Croft
authors.forename: R
authors.initials: R
authors.lastname: Froud
authors.forename: A M
authors.initials: AM
authors.lastname: Lewis
mesh_terms: D006801:Humans; D010352:Patient Dropouts / Q000706:statistics & numerical data*; D016032:Randomized Controlled Trials as Topic / Q000706:statistics & numerical data*