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Aim: To examine the effect of a brief theory-based health promotion intervention delivered in the community on health behaviour and diabetes-related risk factors among Danish adults at high risk of diabetes.
Methods: A randomised trial was conducted among 127 individuals aged 28 to 70 with fasting plasma glucose: 6.1-6.9 mmol/l and/or HbA1c : 6.0-<6.5% (42- < 48 mmol/mol) recruited from general practice in Holstebro, Denmark. Participants were randomised to a control group or to receive the intervention delivered over four 2 h group sessions during five weeks, and two further sessions after one and six months. Questionnaire data and clinical measures were collected at baseline, three months and one year after intervention.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Intervention | Experimental | Participants in the intervention group received the offer of four 2h group sessions during five weeks, and two further sessions after one and six months. The attendance rates of the sessions were 95%, 88%, 87%, 73%, 67% and 51%, respectively. The course was delivered by health care staff in the Holstebro Health Care Centre, including a dietitian and an occupational therapist, both with health pedagogic competences. It was delivered to seven intervention groups, which varied in size from 5 to 15 participants. |
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| Control | No Intervention | Usual practice |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Brief theory-based health promotion intervention (group-based) | Behavioral | The intervention is depicted using a PaT Plot in the published paper: Juul, L et al. Effectiveness of a brief theory-based health promotion intervention among adults at high risk of type 2 diabetes: One-year results from a randomised trial in a community setting. Primary Care Diabetes 1 0 ( 2 0 1 6 ) 111-120. |
| Measure | Description | Time Frame |
|---|---|---|
| weight | change in weight / the proportion with weight reduction >5% of baseline weight at one-year | baseline to one-year follow-up |
| total-fat intake <30% of energy intake | Information on diet was obtained using a validated self-administrated 198-item food frequency questionnaire (FFQ), the Inter99 FFQ. Portion size was set according to gender. Daily nutrient intake was translated into energy intake and nutrient intake using the Danish Food Com- position Databank (version 7.01) and the software program FoodCalc version 1.3 | change from baseline to one-year follow-up |
| saturated-fat intake <10% of energy intake | Information on diet was obtained using a validated self-administrated 198-item food frequency questionnaire (FFQ), the Inter99 FFQ. Portion size was set according to gender. Daily nutrient intake was translated into energy intake and nutrient intake using the Danish Food Com- position Databank (version 7.01) and the software program FoodCalc version 1.3 | change from baseline to one-year follow-up |
| fibre-intake ≥15g/1000kcal changes in physical activity level. | Information on diet was obtained using a validated self-administrated 198-item food frequency questionnaire (FFQ), the Inter99 FFQ. Portion size was set according to gender. Daily nutrient intake was translated into energy intake and nutrient intake using the Danish Food Com- position Databank (version 7.01) and the software program FoodCalc version 1.3 | change from baseline to one-year follow-up |
| changes in physical activity. | Physical activity was measured using the International Physical Activity Questionnaire (IPAQ). Increased MET (min/week)=increased physical activity | change from baseline to one-year follow-up |
| Measure | Description | Time Frame |
|---|---|---|
| patient activation | patient activation was measured using the Patient Activation Measure (PAM) | change from baseline to one-year follow-up |
| waist circumference | Waist circumference was recorded as the average of two measurements of waist circumference using a tape measure halfway between the lowest point of the rib cage and the anterior supe- rior iliac crests when standing. |
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Inclusion Criteria:
Exclusion Criteria:
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| ID | Term |
|---|---|
| D018149 | Glucose Intolerance |
| ID | Term |
|---|---|
| D006943 | Hyperglycemia |
| D044882 | Glucose Metabolism Disorders |
| D008659 | Metabolic Diseases |
| D009750 | Nutritional and Metabolic Diseases |
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|
| change from baseline to one-year follow-up |
| total energy intake | Information on diet was obtained using a validated self-administrated 198-item food frequency questionnaire (FFQ), the Inter99 FFQ. Portion size was set according to gender. Daily nutrient intake was translated into energy intake and nutrient intake using the Danish Food Com- position Databank (version 7.01) and the software program FoodCalc version 1.3 | change from baseline to one-year follow-up |
| blood pressure, systolic and diastolic | Systolic and diastolic blood pressure was calculated as the mean of three measurements performed after at least 10 min rest, while participants were seated with the cuff on the right arm at the level of the heart. | change from baseline to one-year follow-up |
| HbA1c | Blood tests were analysed in a central laboratory. | change from baseline to one-year follow-up |
| cholesterol | Total, LDL, HDL, Blood tests were analysed in a central laboratory. | change from baseline to one-year follow-up |