Table 1.
Baseline characteristics of patients
| Characteristic | ISDM group (n=77) | Control group (n=77) |
|---|---|---|
| Women | 36 (46.8) | 36 (46.8) |
| Age, years | 61.8 (6.5) | 61.7 (6.5) |
| Duration of diabetes, years | 13.7 (7.3) | 12.7 (6.6) |
| Systolic blood pressure, mm Hg | 145 (20.0) | 145 (16.5) |
| Diastolic blood pressure, mm Hg | 80 (10.2) | 84 (9.9) |
| Body mass index, kg/m2 | 33.3 (7.1) | 32.7 (7.4) |
| HbA1c, % | 6.9 (0.7) | 7.2 (0.7) |
| Total cholesterol*, mmol/L | 5.4 (1.2) | 4.9 (1.3) |
| HDL-cholesterol†, mmol/L | 1.2 (0.3) | 1.2 (0.3) |
| LDL-cholesterol‡, mmol/L | 3.0 (1.0) | 2.8 (1.1) |
| Smoker | 8 (10.4) | 11 (14.3) |
| Social status score§ | 12.04 (3.8) | 13.08 (3.4) |
| Medication for glucose control | 71 (92.2) | 72 (93.5) |
| Insulin | 46 (59.7) | 44 (57.1) |
| Metformin | 55 (71.4) | 55 (71.4) |
| Sulfonylurea | 10 (13.0) | 11 (14.3) |
| DPP-4 inhibitors | 5 (6.5) | 7 (9.1) |
| Medication for blood pressure control | 66 (85.7) | 67 (87.0) |
| Statin medication | 44 (57.1) | 36 (46.8) |
| Previous participation in teaching sessions for hypertension | 36 (46.8) | 27 (35.1) |
Values are numbers (percentages) or means (SD).
*ISDM n=76, control group n=75.
†ISDM n=75, control group n=75.
‡ISDM n=75, control group n=74.
§ISDM n=75, control group n=72; social status includes educational status, occupational status and income: score 3–21 (lower scores indicating lower social class).47
DPP-4, dipeptidyl peptidase-4; HbA1c, glycated haemoglobin; HDL, high-density lipoprotein; ISDM, informed shared decision-making; LDL, low-density lipoprotein.