This trial aims to reduce unnecessary prescription of antibiotics and broad spectrum antibiotics by general practitioners (GPs) in England. Unnecessary prescriptions are defined as those that do not improve patient health outcomes. The intervention is to send GPs a letter from the Chief Medical Officer (CMO) that gives feedback on their practice's prescribing levels. Specifically the sample was GPs whose practices whose prescribed more than 1.161 items per STAR-PU or whose practices prescribed more that .965 items per STAR-PU and greater than 10% broad spectrum items. The intervention groups received a letter telling them they are among the highest prescribers of either their total or broad spectrum antibiotics, with a graph showing their prescribing compared to average prescribing ("their peers"). The letter also contained a leaflet to help GPs discuss self-care advice with patients and some advice to use delayed prescriptions. The investigators hypothesize that the antibiotic prescribing rate in will be lower for the treatment group compared to the control group, following the receipt of the letter.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Enrollment
7,000
letter with the percentile prescribing the practice is on and a bar chart, comparing prescribing to the national average
social norm feedback letter used as standard practice, without specific information about the prescribing percentile
Public Health England
London, United Kingdom
total antibiotic prescribing weighted by Specific Therapeutic group Age-sex Related Prescribing Unit (STAR-PU) in November for each GP practice
antibiotic prescribing weighted by Specific Therapeutic group Age-sex Related Prescribing Unit (STAR-PU)
Time frame: 1 month
total broad spectrum antibiotic prescribing weighted by STAR-PU in November for each GP practice
broad spectrum antibiotic prescribing weighted by Specific Therapeutic group Age-sex Related Prescribing Unit (STAR-PU)
Time frame: 1 month
percentage broad spectrum antibiotic prescribing in November for each GP practice
percentage broad spectrum antibiotic prescribing
Time frame: 1 month
total non-broad spectrum antibiotic prescribing weighted by STAR-PU in November for each GP practice
total overall antibiotic prescribing minus total broad spectrum antibiotic prescribing
Time frame: 1 month
total antibiotic prescribing weighted by STAR-PU in December for each GP practice
antibiotic prescribing weighted by Specific Therapeutic group Age-sex Related Prescribing Unit (STAR-PU)
Time frame: 2 months
total broad spectrum antibiotic prescribing weighted by STAR-PU in December for each GP practice
Time frame: 2 months
percentage broad spectrum antibiotic prescribing in December for each GP practice
Time frame: 2 months
total non-broad spectrum antibiotic prescribing weighted by STAR-PU in December for each GP practice
Time frame: 2 months
total antibiotic prescribing in January weighted by STAR-PU for each GP practice
Time frame: 3 months
total broad spectrum antibiotic prescribing weighted by STAR-PU in January for each GP practice
Time frame: 3 months
percentage broad spectrum antibiotic prescribing in January for each GP practice
Time frame: 3 months
total non-broad spectrum antibiotic prescribing weighted by STAR-PU in January for each GP practice
Time frame: 3 months
total antibiotic prescribing weighted by STAR-PU in February for each GP practice
Time frame: 4 months
total broad spectrum antibiotic prescribing weighted by STAR-PU in February for each GP practice
Time frame: 4 months
percentage broad spectrum antibiotic prescribing in February for each GP practice
Time frame: 4 months
total non-broad spectrum antibiotic prescribing weighted by STAR-PU in February for each GP practice
Time frame: 4 months
total antibiotic prescribing weighted by STAR-PU in March for each GP practice
Time frame: 5 months
total broad spectrum antibiotic prescribing weighted by STAR-PU in March for each GP practice
Time frame: 5 months
percentage broad spectrum antibiotic prescribing in March for each GP practice
Time frame: 5 months
total non-broad spectrum antibiotic prescribing weighted by STAR-PU in March for each GP practice
Time frame: 5 months
total antibiotic prescribing weighted by STAR-PU in April for each GP practice
Time frame: 6 months
total broad spectrum antibiotic prescribing weighted by STAR-PU in April for each GP practice
Time frame: 6 months
percentage broad spectrum antibiotic prescribing in April for each GP practice
Time frame: 6 months
total non-broad spectrum antibiotic prescribing weighted by STAR-PU in April for each GP practice
Time frame: 6 months
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