Characteristics of study population by concentration of glycated haemoglobin and self reported diabetes. Values are mean (SD) unless stated otherwise
| Glycated haemoglobin (%) | |||||
|---|---|---|---|---|---|
| <5 (n=1204) | 5-5.4 (n=1606) | 5.5-6.9 (n=1611) | ≥7 (n=81) | Self reported diabetes (n=160) | |
| Age (years) | 57.5 (8.6) | 58.8 (9.0) | 61.1 (8.5) | 64.0 (7.9) | 64.4 (7.4) |
| HbA1c (%) | 4.57 (0.34) | 5.20 (0.14) | 5.82 (0.31) | 8.35 (1.52) | 7.98 (1.87) |
| Body mass index (kg/m2) | 26.2 (3.0) | 26.5 (3.2) | 26.8 (3.5) | 28.6 (3.4) | 27.7 (3.8) |
| Systolic blood pressure (mm Hg) | 136.3 (16.7) | 136.9 (16.8) | 138.4 (17.7) | 143.8 (16.0) | 143.4 (19.3) |
| Diastolic blood pressure (mm Hg) | 84.8 (10.6) | 84.7 (10.9) | 85.2 (11.1) | 87.3 (10.2) | 86.2 (12.5) |
| Cholesterol (mmol/l) | 5.88 (1.07) | 6.01 (1.04) | 6.11 (1.10) | 6.22 (1.04) | 5.9 (1.21) |
| LDL cholesterol (mmol/l) | 3.81 (0.94) | 3.89 (0.95) | 3.95 (0.94) | 3.90 (0.93) | 3.65 (10.2) |
| HDL cholesterol (mmol/l) | 1.26 (0.34) | 1.26 (0.36) | 1.24 (0.33) | 1.10 (0.28) | 1.15 (0.28) |
| Triglycerides (mmol/l) | 1.91 (1.08) | 2.00 (1.12) | 2.14 (1.27) | 2.80 (1.78) | 2.60 (1.78) |
| Cigarette smoking habit (No (%)) | |||||
| Never | 476 (39.8) | 564 (35.4) | 448 (27.9) | 21 (25.9) | 31 (19.5) |
| Former | 620 (51.8) | 860 (54.0) | 881 (55.0) | 50 (61.7) | 116 (73.0) |
| Current | 100 (8.4) | 168 (10.6) | 274 (17.1) | 10 (12.3) | 12 (7.5) |
| No (%) with history of heart attack or stroke | 50 (4.2) | 89 (5.5) | 142 (8.8) | 15 (18.5) | 32 (20.0) |
P<0.001 for differences between categories for all variables except diastolic blood pressure.