Skip to main content

Table 2 Adjusted register-derived process and clinical outcome data results for intervention and control groups. Odds ratios are estimates of the difference between intervention and control practices at follow-up, adjusting for differences at baseline and a systematic difference between registers.

From: A pragmatic cluster randomised controlled trial of a Diabetes REcall And Management system: the DREAM trial

  Control Practices Intervention Practices  
Measures Baseline Follow-up Baseline Follow-up  
Attendance      Odds Ratio (95% CI)
Proportion of patients with at least one appointment 73.4% 67.7% 74.3% 81.7% 2.00* (1.02, 3.91)
Mean number of appointments 1.23 1.35 1.29 2.02 Relative Risk 1.26 (0.87, 1.81)
Process of care      
Fundoscopy recorded 49.5% 50.5% 43.1% 60.6% 1.45 (0.88, 2.40)
Feet examination recorded 46.1% 48.8% 48.0% 67.3% 1.87*(1.09, 3.21)
Dietary advice recorded 19.9% 29.2% 25.3% 46.3% 2.77*(1.22, 6.29)
Smoking status recorded 34.2% 48.0% 36.9% 66.0% 2.43*(1.18, 5.00)
Was subject a smoker? 19.3% 19.6% 20.7% 21.4% 0.72 (0.38, 1.37)
BP recorded 59.3% 48.3% 55.3% 71.4% 2.14*(1.06, 4.36)
HbA1c recorded 64.0% 66.0% 60.9% 79.0% 1.58 (0.81, 3.08)
Cholesterol recorded 57.0% 61.1% 53.3% 78.0% 1.66 (0.89, 3.12)
Creatinine recorded 48.0% 60.4% 53.0% 73.4% 1.36 (0.72, 2.52)
Albumin:creatinine ratio recorded 26.8% 29.7% 30.2% 40.4% 1.60(0.98, 2.60)
Clinical      Difference
Mean most recent systolic blood pressure 144.5 144.6 145.8 144.2 -1.56 (-4.54, 1.42)
Mean most recent diastolic blood pressure 80.2 78.1 79.2 77.8 -0.40 (-1.78, 0.97)
Mean most recent HbA1c# 7.56 7.35 7.75 7.32 -0.04 (-0.18, 0.10)
Mean most recent cholesterol# 5.27 5.06 5.23 4.94 -0.15**(-0.25, -0.06)
Mean most recent creatinine# 93.1 96.1 91.8 95.7 0.21 (-1.27, 1.70)
Mean most recent albumin:creatinine ratio# 8.99 8.45 8.48 8.05 -1.6 (-4.4, 1.2)
Diabetes medication      Relative risk (95% CI)
Biguanide, Sulphonylurea or Thiazol 944 (49.0%) 1128 (58.5%) 646 (38.9%) 923 (55.5%) 1.06 (0.94, 1.19)
Metformin 424 (22.0%) 573 (29.7%)) 343 (20.6% 530 (31.9) 1.07 (0.81, 1.41)
Insulin 57 (3.0%) 75 (3.9%) 54 (3.2%) 75 (4.5%) 1.15 (0.83, 1.58)
Cardiovascular risk factor drugs      
Aspirin 10 (0.5%) 164 (8.5%) 34 (2.0%) 308 (18.5%) 2.08* (1.00, 4.32)
Ace Inhibitor 17 (0.9%) 103 (5.3%) 31 (1.9%) 185 (11.1%) 2.03* (1.08, 3.78)
ACE inhibitor or Angiotensin-II receptor antagonist 21 (1.1%) 109 (5.7%) 38 (2.3%) 192 (11.6%) 1.86* (1.03, 3.38)
Any antihypertensive 118 (6.1%) 274 (14.2%) 131 (7.9%) 415 (25.0%) 1.89*(1.16, 3.08)
Lipid-lowering 110 (5.7%) 290 (15.0%) 79 (4.8%) 418 (25.2%) 1.66 (0.99, 2.79)
Any medication 1674 (86.9%) 1838 (95.4%) 1283 (77.2%) 1549 (93.2%) 1.01 (0.94, 1.08)
  1. *p < 0.05, **p < 0.01, *** p < 0.001
  2. # Data downloaded into register database directly from hospital laboratory information system.