Intervention effectiveness.

aBlood test analyses: people identified in the diabetes register at baseline and alive at follow up and for the questionnaire scale analyses: furthermore, responding to the questionnaire and not reported having no diabetes.bAdjusted for cluster effect and for the blood test analyses; also for baseline values.cStated participation in a diabetes consultation provided by a practice nurse during the past 12 months.dStated taking diabetes medication.eStated following advices on diet and physical activity.Differences at 18 months of follow up between the diabetes population in 20 usual practices and in 20 intervention practices. The intervention practices had been offered a training course for general practice nurses in applying the Self-determination Theory in current type 2 diabetes care, DK 2011.