Table 1.
Baseline characteristics of patients
| Characteristic | ISDM-P group (n=151) | Control group (n=128) |
| Women | 67 (44.4) | 59 (46.1) |
| Age, years | 59.5 (6.5) | 58.7 (7.9) |
| Duration of diabetes, years* | 8.5 (6.5) | 7.5 (6.2) |
| Systolic blood pressure, mm Hg† | 140 (15.1) | 140 (16.0) |
| Diastolic blood pressure, mm Hg† | 81 (8.9) | 84 (8.5) |
| Body mass index, kg/m2‡ | 33.6 (5.3) | 31.5 (6.7) |
| HbA1c, %§ | 7.0 (0.7) | 7.0 (1.0) |
| Total cholesterol†, mmol/L | 5.2 (1.1) | 5.3 (1.1) |
| High-density lipoprotein, mmol/L | 1.3 (0.4) | 1.3 (0.4) |
| Low-density lipoprotein, mmol/L | 3.2 (0.9) | 3.4 (1.0) |
| Smoker (%)** | 29 (19.2) | 18 (14.5) |
| Diagnosis hypertension (%)† | 134 (88.7) | 115 (90.6) |
| Medication for blood pressure control (%) | 129 (85.4) | 104 (81.3) |
| Medication for glucose control | 124 (82.1) | 95 (74.2) |
| Insulin | 36 (23.8) | 28 (21.9) |
| Metformin | 111 (73.5) | 88 (68.8) |
| Sulfonylurea | 21 (13.9) | 10 (7.8) |
| Other antidiabetic agents | 52 (34.4) | 40 (31.3) |
| Statin medication | 50 (33.1) | 41 (32.0) |
| Participation in teaching session for hypertension†† (%) | 28 (21.1) | 11 (10.1) |
| Graduation | ||
| None | 1 (0.7) | 1 (0.8) |
| Junior high school | 29 (19.2) | 24 (18.8) |
| High school | 93 (61.6) | 86 (67.2) |
| Qualification for technical college or university | 28 (18.5) | 17 (13.3) |
Values are given as patient number (percentage) or as means (SD).
*ISDM-P n=151, control group n=125.
†ISDM-P n=151, control group n=127.
‡ISDM-P n=150, control group n=126.
§ISDM-P n=151, control group n=128.
¶ISDM-P n=150, control group n=117.
**ISDM-P n=151, control group n=124.
††Patients with diagnosis of hypertension, ISDM-P n=133, control group n=109.
HbA1c, glycated haemoglobin; ISDM-P, informed shared decision-making programme.