Three-year effects on dietary quality of health education: a randomized controlled trial of people with screen-detected dysglycaemia (The ADDITION study, Denmark)

Research output: Contribution to journalJournal articleResearchpeer-review

BACKGROUND: Healthy diet is a core component in prevention and self-management of type 2 diabetes and cardiovascular disease. The long-term efficacy was assessed of a theory-based health education programme 'Ready to Act' on dietary quality in people with screen-detected dysglycaemia.

METHODS: Five hundred and nine adults with prediabetes (impaired glucose tolerance, impaired fasting glycaemia) or type 2 diabetes were recruited through screening for type 2 diabetes [the ADDITION (Anglo-Danish-Dutch Study of Intensive Treatment in People with Screen-Detected Diabetes in Primary Care) study, DK] and then randomly assigned to health education or to a control group (I = 322; C = 187). The intervention group was offered a 12-week programme in health-related action competence including 2 one-to-one and 8 group sessions (18 h). Dietary quality was measured by the Dietary Quality Score_revised (0-8 points) at baseline and at one- and 3-year follow-up. Changes were analysed by multilevel analyses.

RESULTS: The analysis included data from 444 participants (87%). At the 3-year follow-up, the intervention group had significantly increased dietary quality compared with the control group (net change: 0.39 Dietary Quality Score_revised points, P = 0.04). The intake of unsaturated fats used on bread and for cooking increased in the intervention group compared with the control group at the 3-year follow-up (net change: 31 g/week; P = 0.02). A non-significant tendency toward an increased intake of vegetables in the intervention group compared with the control group was seen (net change: 111 g/week; P = 0.16). No changes were seen in fish intake.

CONCLUSIONS: Health education aiming at action competence improved the long-term dietary quality in a population with dysglycaemia, especially according to the intake of unsaturated fat. The ADDITION trial was registered at ID no NCT00237549.

Original languageEnglish
JournalEuropean Journal of Public Health
Issue number3
Pages (from-to)393-8
Number of pages6
Publication statusPublished - Jun 2013

    Research areas

  • Adult, Aged, Body Mass Index, Cardiovascular Diseases/prevention & control, Cluster Analysis, Denmark/epidemiology, Diabetes Mellitus, Type 2/diagnosis, Diet/psychology, Female, Follow-Up Studies, Glucose Intolerance/diagnosis, Glucose Metabolism Disorders/diagnosis, Glycated Hemoglobin A/analysis, Group Processes, Health Behavior, Health Education, Health Status Disparities, Humans, Male, Mass Screening/psychology, Middle Aged, Primary Health Care/statistics & numerical data, Self Care, Social Class, Surveys and Questionnaires

ID: 259569143