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The aim of this project is to evaluate the efficacy of electronic reminder letters versus postal reminder letters on general practices adherence to clinical quality guidelines regarding Point Of Care Testing (POCT).
Background Point-of-care testing (POCT) is increasingly being used in general practice to assist GPs in their management of patients with diseases. An accredited external quality assessment (EQA) program and internal quality control system is recommended. In the Copenhagen area external as well as internal quality control has been enforced by annual outreach consultant visits and by split sample EQA procedures, where POCT results have been compared with central laboratory results. However, the adherence to quality guidelines has been seen to be less than anticipated among GPs in the Copenhagen municipality and in the former county of Copenhagen.
Dissemination of guidelines alone rarely brings about improvements in clinical practice and even an multifaceted implementation of guidelines may not change clinical practice. Multiple strategies for implementing guidelines appear to be more effective than single ones 5;6. However, well-designed empirical research looking into various implementation strategies is still needed in this area.
E-mails have successfully been used in several studies to promote health behaviour change in risk populations and our hypothesis is that electronic reminder letters (send to the GPs electronic patient records) is an efficient and inexpensive way to influence the behaviour of GP's.
Due to the low adherence, the Copenhagen General Practitioners' Laboratory (CGPL) plans to introduce electronic reminder letters (alongside the standard implementation procedures) during 2010 in order to increase adherence to the quality guideline.
The aims of this study are:
To evaluate the effect of electronic reminder letters versus postal reminder letters on general practices adherence to clinical quality guidelines regarding POCT.
Participants All practices conducting POCT INR (Approximately 240 practices). Practices are allocated to usual CGPL quality guideline activities and postal reminder letters (postal reminder group) and usual CGPL implementation activities in addition to electronic reminder letters (electronic reminder group).
Data collection Data on performed split test EQA procedures is retrieved from CGPL database. These data do not contain any patient related data because all split test EQA are conducted by a constructed identification code. Process indicators (sent reminder letters) are also obtained from CGPL. The Capital Region databases provide information on the participating practices and corresponding GPs.
Data from The Capital Region Information regarding: Sex, age, year of graduation from university, working address, type of practice, patient listed to practice and use the following tests: Hemoglobin, glucose, INR; CRP, HbA1C were retrospectively collected 4 months before the start of the trial (tentative in order to establish a baseline). Every month in the rest of the study period we receive data from the Capital Region regarding practices in the study areas and identify practices having used Hemoglobin or blood glucose as a POCT. These data will be compared with the CGPL database every month and those practices that have not done a split sample EQA will receive electronic reminder letters during the following 4 months.
Practices are stratified by area and type of organization by means of SAS (Proc PLAN) by an independent organization.
1. Total number of split tests performed in study period (three periods).
2. Proportion of practices with a high quality of tests defined as 75% of the performed split tests for INR within the accepted interval according to the CGPL quality guidelines1 in study period.
3. Proportion of practices conducting split tests in study period.
We us a 50% adherence estimate based on CGPL data from 2007 in order to ascertain the power of the study. Given a MEREDIF at 25% and a power of 90% it is estimated that 160 practices are to be included in this study.
Differences in the outcomes between allocation groups at baseline, intervention and outcome period are tested by means of chi-square tests (outcomes 2 and 3) and t-tests (outcome 1).
In order to investigate the development of adherence relative to the intervention we will for the three periods use logistic (outcome 2 and 3) and linear (outcome 1) regression where we use GEE methods to account for the repeated measurements.
To identify predictors for adhering to guidelines adjusted odds ratios for the practice characteristics are estimated in multivariate logistic (outcomes 2 and 3) and linear (outcome 1) regression analysis on the outcomes at baseline.
All statistical analyses are performed using SAS, version 9.2 (SAS Institute Inc, Cary, NC).
Intervention Standard implementation The standard implementation of EQA consists of invited meetings and an annual facilitator visit in each practice. As part of the planned implementation strategy GPs were invited to meetings, received written material from the CGPL. At start each practice received written information from KPLL emphasizing the need of adhering to the EQA.
Postal reminder letters
In this group, postal reminder letters are sent to practices not adhering to the guideline recommendations of split testing within 30 days; i.e. a reminder letter is send when the CGPL database registers that the last split test or last reminder letter was 31 days ago. Thus, practices may receive up to four postal reminder letters:
Electronic reminder letters
In this group, electronic reminder letters are sent to practices not adhering to the guideline recommendations of split testing within 30 days; i.e. a reminder letter is send when the CGPL database registers that the last split test or last reminder letter was 31 days ago. Thus, practices may receive up to four electronic reminder letters:
Time table Substudy A
Jan - Apr 2010 Sep - Dec 2010 Jan - Apr 2011 Baseline Intervention Outcome
Allocation: Randomized, Control: Uncontrolled, Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Health Services Research
Postal reminder letters, Electronic reminder letters, Reminder letters
Not yet recruiting
Research Unit Of General Practice, Copenhagen
Published on BioPortfolio: 2014-08-27T03:12:37-0400
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