Structured Diabetes Self-Management Education in Primary Care and Metabolic Control

Structured Diabetes Self-Management Education in Primary Care and Metabolic Control: a Randomized Clinical Trial.

Education is the mainstay of treatment of diabetes mellitus (DM), since it is through her that patients are trained to perform the management of your disease. There is a wide range of educational interventions tested in patients with DM, not having been defined so far a universal template that can be standardized and recognized as effective for all individuals with the disease. The present study aims to evaluate the effect of a group based structured education program, applied by a primary care generalist nurse, on metabolic control of type 2 diabetes mellitus (DM2) patients attending a primary care unit.

Study Overview

• Status: Completed
• Conditions: Diabetes
• Intervention / Treatment: Other: Structured Diabetes Education

Detailed Description

Design: This was a single-center, parallel-group, randomized study Setting: One Primary Care Unit named Santa Cecília/Hospital de Clínicas de Porto Alegre Basic Unit of health, in Porto Alegre, Brazil.

Patients: Adult subjects (more than 18 years-old) up to the age of 80 years, with Type 2 diabetes, and with A1c >7%, regularly attending the primary care unit in the previous 6 months before the trial.

Exclusion criteria were: history of active infection (eg. osteomyelitis, pulmonary tuberculosis, AIDS), chronic corticosteroids use, unstable angina or myocardial infarction in the last 3 months, advanced renal disease require dialysis, heart failure (New York Heart Association class III and IV), cirrhosis, alcohol or illicit drug use, dementia, actual pregnancy or lactation, current cancer or any disease that might affect survival in the next 5 years.

Intervention: The intervention group (I) attended a five-week education course and reinforcement meetings every 4 months, for one year. The control group (C) received usual medical care.

Measures: Clinical (age, gender, ethnicity, history of hypertension and BP levels, smoking and physical activity), anthropometrical (weight, height, and waist circumference) and laboratorial data (fasting glucose levels, A1c, and lipid profile) The Diabetes knowledge was estimated by a questionnaire composed by 22 questions addressing the information discussed in the meetings and will be referred as type 2 DM knowledge score. This measures were done at 0, 4, 8 and 12 months End-points: The primary endpoint was changes in HbA1c at 4, 8 and 12 months. Additional analyses were done to evaluate changes in type 2 DM literacy, blood pressure (BP), body mass index (BMI) and lipids.

Statistical Analysis: Student t and chi-square test were used to compare baseline continuous and categorical variables, respectively. Variables with non-normal distribution were log transformed. Global linear model (GLM) for repeated measurements, with Bonferroni post-hoc test, was used to analyze changes in the outcomes during the trial. HbA1c values after the interventions were adjusted to baseline A1c and dosage of insulin at 12 months by ANCOVA. All patients with at least one A1c measurement available after randomization were included in the analyses, regardless if they attended all meetings of the education course or not (intention to treat analysis). A P value <0.05 (two-tailed) was considered significant.

• Study Type: Interventional
• Enrollment (Actual): 138
• Phase: Not Applicable

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 80 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• adult subjects (more than 18 years-old) up to the age of 80 years,
• with DM2 (ref ADA), and with A1c >7%,
• regularly attending a primary care unit in the previous 6 months

Exclusion Criteria:

• history of active infection (eg. osteomyelitis, pulmonary tuberculosis, AIDS),
• chronic corticosteroids use,
• unstable angina or myocardial infarction in the last 3 months,
• advanced renal disease require dialysis,
• heart failure (New York Heart Association class III and IV),
• cirrhosis,
• alcohol or illicit drug use,
• dementia,
• actual pregnancy or lactation,
• current cancer or any disease that might affect survival in the next 5 years.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Structured Diabetes education; The intervention group received a structured DSME course. The course was composed by weekly 2 hour meetings for five weeks total hours group of 10 patient and reinforcement meetings every 4 months, for one year	Other: Structured Diabetes Education; The intervention group received a structured DSME course adapted from 15. The course was composed by weekly 2 hour meetings for five weeks total hours group of 10 patient and reinforcement meetings every 4 months, for one year

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
HbA1c	The primary endpoint was changes in HbA1c at 4, 8 and 12 months.	4, 8 and 12 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Changes in type 2 DM literacy.	Additional analyses were done to evaluate changes in type 2 DM literacy.	4, 8 and 12 months
Changes in blood pressure (BP)	Knowledge of diabetes was estimated by a questionnaire consisting of 22 knowledge scores DM	4, 8 and 12 months
Changes in Blood pressure	The BP was measured twice with a digital sphygmomanometer (OMROM) with the patient in a sitting position, after a 5-min rest and with 1-min interval between measurements. The value registered was the medium between two measures	4, 8 and 12 months
Changes in body mass index (BMI)	The BMI (weight/height2) was calculated	4,8 and 12 months
Changes in Lipids	The measure of fasting plasma total cholesterol, HDL and triglycerides were by enzymatic colorimetric method 20. The Low-density lipoprotein cholesterol (LDL) was calculated by the formula of Friedwald equation (LDL = total cholesterol - HDL + Triglycerides/5).	4,8 and 12 months

Collaborators and Investigators

• Sponsor: Hospital de Clinicas de Porto Alegre

Study record dates

Study Major Dates

• Study Start: January 1, 2009
• Primary Completion (Actual): July 1, 2011
• Study Completion (Actual): July 1, 2011

Study Registration Dates

• First Submitted: November 4, 2011
• First Submitted That Met QC Criteria: November 14, 2011
• First Posted (Estimate): November 17, 2011

Study Record Updates

• Last Update Posted (Estimate): November 21, 2011
• Last Update Submitted That Met QC Criteria: November 18, 2011
• Last Verified: November 1, 2011

More Information

Terms related to this study

• Keywords: diabetes control; diabetes education; diabetes care
• Additional Relevant MeSH Terms: Glucose Metabolism Disorders; Metabolic Diseases; Endocrine System Diseases; Diabetes Mellitus
• Other Study ID Numbers: 08-464