Table 1.
Descriptive data for all patients in the NDR for the study and reference county in 2010 and 2011 (aged 18–79).
| Study county | Reference county | ||||||
|---|---|---|---|---|---|---|---|
| Year | 2010 | 2011 | p 2010 vs. 2011 | 2010 | 2011 | p 2010 vs. 2011 | p (diff. 2011–2010)3 |
| n1 | 39 268 | 44 785 | 26812 | 32 804 | |||
| Age | 64.4 (10.2)*** | 64.3 (10.3)** | 0.732 | 64.1 (10.2) | 64.1 (10.3) | 0.391 | – |
| Sex (% female) | 42.0 | 41.7 | 0.370 | 41.6 | 41.3 | 0.467 | – |
| Diabetes duration | 8.01 (7.55)*** | 8.12 (7.71)*** | 0.049 | 7.73 (7.23) | 7.87 (7.42) | 0.026 | – |
| BMI | 30.2 (5.5)*** | 30.2 (5.4)*** | 0.494 | 30.4 (5.5) | 30.4 (5.5) | 0.758 | – |
| Smoking (%) | 17.6*** | 17.4*** | 0.475 | 18.8 | 18.6 | 0.440 | – |
| Albuminuria (%) | 26.9*** | 23.1 | <0.001 | 22.1 | 22.7 | 0.174 | <0.001 |
| Microalbuminuria | 19.7*** | 17.4*** | <0.001 | 14.9 | 15.9 | 0.014 | <0.001 |
| Macroalbuminuria | 7.7 | 7.2 | 0.012 | 7.7 | 7.5 | 0.640 | 0.002 |
| HbA1c | |||||||
| mmol/mol | 53.5 (13.2)*** | 52.9 (13.4)*** | <0.001 | 54.1 (13.1) | 53.8 (13.5) | 0.001 | 0.139 |
| <52 mmol/mol (%)2 | 53.5*** | 56.6*** | <0.001 | 51.9 | 53.4 | <0.001 | <0.001 |
| >72 mmol/mol (%)## | 8.4** | 8.5*** | 0.602 | 9.0 | 9.2 | 0.385 | 0.970 |
| Blood pressure: | |||||||
| Systolic, mm Hg | 134.8 (15.9)*** | 133.8 (15.7)*** | <0.001 | 135.7 (15.9) | 135.6 (15.7) | 0.319 | <0.001 |
| Diastolic, mm Hg | 76.7 (9.6)** | 76.4 (9.7)* | <0.001 | 76.5 (9.5) | 76.6 (9.6) | 0.299 | <0.001 |
| <130/80 (%) | 23.7*** | 28.0*** | <0.001 | 22.3 | 22.2 | 0.718 | <0.001 |
| <140/90 (%) | 72.5*** | 74.6*** | <0.001 | 70.8 | 71.4 | 0.132 | <0.001 |
| LDL cholesterol | |||||||
| mmol/l | 2.71 (0.89)*** | 2.68 (0.91)*** | <0.001 | 2.68 (0.93) | 2.65 (0.94) | 0.004 | 0.139 |
| <2.5 mmol/l (%) | 45.4*** | 47.3* | <0.001 | 47.0 | 48.3 | 0.008 | <0.001 |
Notes: Mean (SD) and frequencies (%).
Total number of patients who fulfil the inclusion criteria regardless of whether data are complete. Thus, n may be lower for an individual variable. The minimum number of patients evaluated for an individual variable was 27 578 in the study county and 19 052 in the reference county for LDL cholesterol in 2010. 2<52 mmol/mol – HbA1c cutoff for payment, >72 mmol/mol – HbA1c level used in the NDR for poorly controlled diabetes with a significantly increased risk of complications. 3p-values calculated with paired data in the county.
***p ≤ 0.001,
**p ≤ 0.01,
*p ≤ 0.05 for the difference between the two counties in 2010 and 2011. BMI = body mass index; HbA1c = glycated haemoglobin; LDL: = low-density lipoprotein.