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The aim of the present study was to evaluate the impact of empowerment group education on type 2 diabetes patients' confidence in diabetes knowledge, self-efficacy, satisfaction with daily life, BMI and glycaemic control compared with the impact of routine diabetes care on the same factors at a 1-year follow-up. In this randomized controlled trial, conducted at 7 primary care centres in central Sweden, 101 patients were randomly assigned either to empowerment group education (intervention group) or to routine diabetes care (control group). Out of these, 42 patients in the intervention group and 46 in the control group completed the 1-year follow-up. Before the intervention and at the 1-year follow-up, the patients answered a 27-item questionnaire, and weight, BMI and HbA1c were measured. The questionnaire comprised three domains: confidence in diabetes knowledge, self-efficacy and satisfaction with daily life. At 1-year follow-up, the level of confidence in diabetes knowledge was significantly higher in the intervention group than in the control group (p<0.05). No significant differences were found in self-efficacy, satisfaction with daily life, BMI and HbA1c between the intervention and control group. The empowerment group education did improve patients' confidence in diabetes knowledge with maintained glycaemic control despite the progressive nature of the disease.

In Tanzania, assessment of blood glucose is the most frequently used method for evaluating glycaemic control in diabetic patients. The patients' metabolic control is often poor and the determination of glycated haemoglobin (HbA1c) for long-term control could be a valuable tool to better manage the treatment. The aim of this study was to determine whether an immediate assessment method for HbA1c (DCA 2000 analyzer) gives reliable results in the warm and moist climate of east Africa. The study was performed in two parts. One equipment test in Sweden where blood samples from 65 diabetic patients were analysed in a DCA 2000 kept at room temperature and in another kept in a climate chamber. The samples were also analysed with HPLC as a reference method. In the second part HbA1c was analysed in 159 Tanzanian diabetic patients with a DCA 2000 and with HPLC combined with a filter paper technique (HbA1c via Post). The study showed that the DCA 2000 gives reliable results at 85% humidity and a temperature not exceeding +31 degrees C. The correlation with the HPLC analysis varied between 0.94 and 0.98. The conclusion is that the DCA 2000 analyzer can be used in Tanzania during the winter but has to be placed in an air-conditioned room if the temperature exceeds +31 degrees C.

Diabetic foot complications were studied in 153 patients at the university clinic in Dar es Salaam (56 insulin treated, 77 treated with oral agents and 20 with diet only). Neuropathy disability and symptoms scores were used to diagnose peripheral neuropathy (PN). Peripheral vascular disease (PVD) was classified as ankle/brachial pressure index less than one. The degree of metabolic control was assessed by glycated haemoglobin (HbA1c) and self-perceived health was measured with SF-36. PN was present in 28.1% of patients and 12.5% had PVD. Patients with PN had higher age and later onset of diabetes in comparison with patients without food complications. Patients with PVD had longer duration of diabetes and higher systolic and diastolic blood pressure compared with those free from PVD. HBA1c and body mass index did not seem to influence the occurrence of PN or PVD. Patients with PN had significantly poorer self-perceived health, whilst PVD-patients had health scorings equal to patients without any foot complications. PN, but not PVD, appeared to have a negative influence on patients self-perceived health. In comparison with studies from the industrial world, foot problems are as common in diabetic patients living in a developing country.