A cluster randomised trial (CRT) isa randomised controlled trial in which pre-existing groups, called clusters, of individuals are randomly allocated to treatment arms. For example, clusters may be clinical practices or schools where the individuals are patients and school children, respectively. Sandr...
What is a randomised controlled trial?Randomised controlled trials (RCTs) answer questions about the effectiveness of different care options: 'what effect does using treatment A or treatment B have on outcomes?' RCTs are important to nursing as they are the best study design for answering the ...
Randomised controlled trials (RCTs) answer questions about the effectiveness of different care options: 'what effect does using treatment A or treatment B have on outcomes?' RCTs are important to nursing as they are the best study design for answering the question 'should I do this or that?
A randomised controlled trial (RCT) is an experiment in which candidates are randomly assigned to one of two groups: the experimental group receives the intervention being tested while the other receives an alternative, or no intervention at all. The two groups are then compared to see if there...
What is the research question?: A case study in the early stages of design of a randomised controlled trial for a complementary therapy A. HartHart A: What is a research question? A case study in the early stages of design of a randomised controlled trial for a complementary therapy... ...
ACASI audio computer assisted self-interview, CD coital diary, CRS cluster-randomised sampling, FTFI face-to-face interview, Mix data only available for men and women combined, NS not stated, RCT randomised controlled trial, RDS respondent-driven sampling, SAQ self-administered questionnaire, SRS ...
Only three studies, all of which had reported interventions to be effective, included information about cost effectiveness. Two of these clearly reported a formal cost effectiveness evaluation. The INCLUSIVE cluster randomised controlled study in UK secondary schools [85] reported what was considered a...
We use the Well London cluster randomised trial as a case study. Local adaptation is a commonly cited feature of complexity, as are complicated intervention delivery logistics and interactions between multiple intervention components. A key unresolved objection to the use of controlled trials for ...
Background Evidence suggests that cluster randomized trials are often poorly designed and analysed. There is little recent research on the methodologic quality of cluster randomized trials and none focuses on primary health care where th... SM Eldridge,D Ashby,GS Feder,... - 《Clinical Trials》 ...
and (4) a pragmatic cluster randomised trial (1200 patients, 60 pharmacies) to evaluate the effectiveness of the educational intervention in both promoting uptake of the NHS Pharmacy Smoking Cessation Service and increasing quit rates. The trial will also collect data on costs and adverse events. ...