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Effectiveness of a primary care nurse delivered educational intervention for patients with type 2 diabetes mellitus in promoting metabolic control and compliance with long-term therapeutic targets: randomised controlled trial
de la Fuente Coria MC, Cruz-Cobo C, Santi-Cano MJ
International Journal of Nursing Studies 2020 Jan;101:103417
clinical trial
6/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: Yes; Adequate follow-up: No; Intention-to-treat analysis: Yes; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

BACKGROUND: Systematic reviews and meta-analyses have shown very different values for the effectiveness of education in type 2 diabetes mellitus. However, the achievement of therapeutic targets after educational programs has been poorly evaluated. OBJECTIVE: Evaluate the effectiveness of a structured and individualised education program for type 2 diabetes, provided by a primary care nurse, which featured educational reinforcements and family support to achieve metabolic control, and long-term therapeutic targets. METHODS: Randomised controlled clinical trial with two arms: Intervention and control group. The intervention consisted of six face-to-face sessions of 30 min and follow-ups after 12 and 24 months for 236 participants with type 2 diabetes mellitus in a primary care setting in Andalusia (Spain). The primary outcome variables were the values and achievement of the type 2 diabetes mellitus control targets established by the American Diabetes Association: glycated haemoglobin, fasting blood glucose, total cholesterol, low-density lipoprotein-cholesterol, high-density lipoprotein-cholesterol, triglycerides, systolic and diastolic blood pressure. The secondary outcome variable was body mass index. RESULTS: From an overall total of 236 participants, 54.2% were male and the average age was 65.1 +/- 9.5. After 12 months, the glycated haemoglobin level and systolic blood pressure decreased in the intervention group. After 24 months, the following variables significantly improved among the intervention group participants: basal glycemia, glycated haemoglobin, total cholesterol low-density lipoprotein cholesterol, and diastolic blood pressure. The glycated haemoglobin target (< 7%) was better achieved in the intervention group than in the control group (35.2% versus 24.7%, p < 0.003). The rest of the targets were not met. CONCLUSION: Continual diabetes education with reinforcement sessions provided by a nurse achieved reductions in glycated haemoglobin, basal glycaemia, total cholesterol, low-density lipoprotein-cholesterol and systolic blood pressure in both the medium and long term. It also increased the proportion of participants who achieved the therapeutic target of glycated haemoglobin.
With permission from Excerpta Medica Inc.

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