Table 7 Statistically significant differences between DMP and usual-care patients when using original and quasi-intention-to-treat analyses sets
Original analyses | Quasi-intention-to-treat analyses | |
|---|---|---|
Selection bias | 1. Systolic BP value: 120 vs. 160 mmHg (OR: 1.79 [95% CI: 1.15 to 2.81]) | 1. Systolic BP value: 120 vs. 160 mmHg (OR: 1.95 [95% CI: 1.22 to 3.11]) |
2. Oral medication (OR: 2.17 [95% CI: 1.35 to 3.49]) | 2. Oral medication (OR: 2.60 [95% CI: 1.62 to 4.17]) | |
3. Blood glucose self-monitoring (OR: 1.69 [95% CI: 1.03 to 2.76]) | 3. Blood glucose self-monitoring (OR: 1.83 [95% CI: 1.08 to 3.11]) | |
4. Prescription of diabetes patient education (OR: 2.32 [95% CI: 1.29 to 4.19]) | 4. Prescription of diabetes patient education (OR: 2.88 [95% CI: 1.48 to 5.59]) | |
5. GP-rated motivation of the patients: high vs. low (3 vs. 1 on a 3-point scale) (OR: 4.55 [95% CI: 2.21 to 9.36]) | 5. GP-rated motivation of the patients: high vs. low (3 vs. 1 on a 3-point scale) (OR: 4.64 [95% CI: 2.04 to 10.53]) | |
6. Smoking behaviour: non-smoking (OR: 1.97 [95% CI: 1.11 to 3.48]) | 6. No difference regarding smoking behaviour | |
7. No difference regarding urinary glucose self-monitoring | 7. Urinary glucose self-monitoring (OR: 3.78 [95% CI: 1.13 to 12.61]) | |
Outcome quality | 1. Course of systolic BP (-3.57 mmHg [95% CI: -0.98 to -6.15]) | 1. Course of systolic BP (-3.31 mmHg [95% CI: -1.01 to -5.63]) |