Table 1.
Agreement between SRP and EMR in percentage and Cohen's kappa.
| Parameter absent in both systems (%) | Parameter present in EMR, but absent SRP (%) | Parameter present in SRP, but absent EMR (%) | Kappab, registration (present/absent) | Registered in both systems and agree perfectly (%) | Registered in both systems, but values differ (%) | Kappaa, b, target values (normal/aberrant) | Clinical target values | |
|---|---|---|---|---|---|---|---|---|
| HbA1c | 12 | 9 | 6 | 0.54 | 68 | 6 | 0.96 | 7.0 mmol/l |
| Ranged | 0-33 | 0-31 | 0-13 | -0.06-0.84 | 56-87 | 0-13 | 0.77-1.0 | |
| Fasting glucose | 5 | 9 | 11 | 0.19 | 45 | 30 | 0.78 | 7.0 mmol/l |
| Range | 0-13 | 0-13 | 3-33 | -0.13-0.76 | 7-67 | 10-47 | 0.25-1.0 | |
| Cholesterol total | 13 | 4 | 8 | 0.62 | 67 | 8 | 0.89 | 5.1 mmol/l |
| Range | 0-30 | 0-13 | 0-20 | 0.32-1.0 | 52-81 | 0-22 | 0.69-1.0 | |
| Chol. HDL | 14 | 5 | 7 | 0.62 | 65 | 8 | 0.96 | 1.0 mmol/l |
| Range | 0-30 | 0-10 | 0-22 | 0.32-1.0 | 43-81 | 0-27 | 0.78-1.0 | |
| Triglyceride | 14 | 4 | 8 | 0.63 | 64 | 10 | 0.83 | 2.0 mmol/l |
| Range | 0-30 | 0-10 | 0-20 | 0.33-1.0 | 48-81 | 0-26 | 0.64-1.0 | |
| Creatinine | 13 | 7 | 10 | 0.48 | 61 | 8 | 1.0 | 200 μmol/l |
| Range | 0-33 | 0-23 | 0-31 | 0.36-0.84 | 47-73 | 0-17 | 1.0 | |
| Microalbuminuria | 46 | 14 | 7 | 0.58 | # | # | # | - |
| 12-100 | 3-40 | 0-19 | 0.02-1.0 | - | - | - | ||
| Blood pressure | 7 | 16* | 5* | 0.30 | 58 | 14 | 0.79 | 160/90 mmHg |
| Range | 0-23 | 0-46 | 0-22 | -0.03-0.76 | 30-100 | 0-42 | 0.2-1.0 | |
| Weightc | 16 | 4* | 23* | 0.39 | 42 | 15 | ||
| Range | 0-40 | 0-10 | 0-59 | -0.04-0.87 | 4-93 | 0-40 | 0.97 0.86-1.0 |
25 Kg/m2 |
| Heightc (n = 119) | 14 | 10 | 16 | 0.35 | 48 | 13 | ||
| Range | 0-33 | 0-40 | 0-60 | 0.69-0.76 | 7-93 | 0-33 | ||
| Smoking behaviour (n = 119) | 4 | 3* | 70* | -0.02 | 22 | 2 | - | - |
| Range | 0-20 | 0-7 | 33-100 | -0.14-0.35 | 0-53 | 0-7 | - | |
| Feet exam | 50 | 12 | 16 | 0.41 | # | # | - | - |
| Range | 4-93 | 0-31 | 0-37 | -0.18-0.66 | - | - | - | |
| Eye exam | 32 | 10* | 21* | 0.36 | # | # | - | - |
| Range | 7-60 | 0-31 | 0-48 | -0.05-0.91 | - | - | - | |
a N depends on percentage of registered values.
b If at least one variable is a constant, a Kappa could not be calculated for all practices independently.
c To determine Kappa (target values) for weight and height, BMI was computed.
d Range: the minimal and maximal percentage or kappa per outcome.at practice level.
* Significant difference between EMR and SRP based on McNemar test, p < 0.01
# Not comparable due to different units of measurement
- Not applicable
SRP = Structured registration program, EMR = Electronic medical record, HbA1c = Glycosylated haemoglobin