Randomised Controlled Trial of Structured Personal Care of Type 2 Diabetes Mellitus

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

1470 participants

Study Classification

INTERVENTIONAL

Study Start Date

1989-03-31

Study Completion Date

1996-02-29

Brief Summary

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The aims of a concluding 14-year follow-up study are:

* To investigate what long-term effect the project model for structured, personalized diabetes care has on 1) the patients' mortality and development of diabetic complications, 2) the patients' use of services from the primary and secondary sector, 3) the patients' self-rated health and motivation, and 4) the doctor-patient relationship.

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Detailed Description

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Type 2 diabetes (T2DM) is an increasingly common illness that is linked to considerable excessive mortality. There are many indications that treatment of raised blood pressure and blood glucose as well as dyslipidaemia can postpone the development of diabetic complications. Treatment of T2DM is primarily done in general practice, where the results are not satisfactory. The purpose of the project is to create a basis so the existing research-based knowledge can be used to improve the quality of diabetes care in general practice.

The answer will be based on the information from 1,428 newly diagnosed diabetic patients aged 40 or over who were followed since 1989 in a randomised trial among more than 600 general practitioners. The intervention, which ended at the beginning of 1996, provided optimum conditions for follow-up, doctor-patient communication and treatment, among other ways by training the doctors, producing clinical guidelines and setting individual treatment goals. In the project, the general practitioner is seen as the coordinator of the whole health system's prophylactic efforts in relation to the individual diabetic patient.

The aims of a concluding 14-year follow-up are:

* To investigate what long-term effect the project model for structured, personalized diabetes care has on 1) the patients' mortality and development of diabetic complications, 2) the patients' use of services from the primary and secondary sector, 3) the patients' self-rated health and motivation, and 4) the doctor-patient relationship.

Conditions

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Diabetes Mellitus Quality of Health Care Health Services Research

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

HEALTH_SERVICES_RESEARCH

Blinding Strategy

NONE

Study Groups

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Routine general practice care

In the comparison group, doctors were free to choose any treatment and change it over time. The study coordinating centre did not contact comparison practices after the end of recruitment (late 1991) until 1995.

Group Type NO_INTERVENTION

Structured personal care

Intervention Type BEHAVIORAL

General practitioners (GPs) were recommended to perform regular follow up every three months and an annual screening for diabetic complications. The GP was requested to define, together with the patient, the best possible goals for blood glucose concentration, glycated haemoglobin (HbA1c), diastolic blood pressure, and lipids within three predefined categories. At each quarterly consultation, the GP was asked to compare the achievements with the goal and consider changing either goal or treatment accordingly. The doctors received annual descriptive feedback reports on individual patients. The GPs were introduced to possible solutions to therapeutic problems through clinical guidelines supported by an annual half day seminar. Patient leaflets were produced for the doctor to hand out.

Interventions

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Structured personal care

General practitioners (GPs) were recommended to perform regular follow up every three months and an annual screening for diabetic complications. The GP was requested to define, together with the patient, the best possible goals for blood glucose concentration, glycated haemoglobin (HbA1c), diastolic blood pressure, and lipids within three predefined categories. At each quarterly consultation, the GP was asked to compare the achievements with the goal and consider changing either goal or treatment accordingly. The doctors received annual descriptive feedback reports on individual patients. The GPs were introduced to possible solutions to therapeutic problems through clinical guidelines supported by an annual half day seminar. Patient leaflets were produced for the doctor to hand out.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* all patients aged 40 or older with newly diagnosed diabetes between 1 March 1989 and 28 February 1991 based on hyperglycaemic symptoms or raised blood glucose values measured in general practice

Exclusion Criteria

* threatening somatic disease, severe mental illness, or unwillingness to participate. For our analysis, we also excluded non-white patients and patients whose diagnosis was not established by a blood glucose measurement at a major laboratory within 500 days after diagnosis.

Minimum Eligible Age

40 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes