Table 1 Baseline characteristics of the Renfrew–Paisley cohort, according to the presence of angina and ischaemic changes on the electrocardiogram at baseline.
| Men | Women | |||||||
|---|---|---|---|---|---|---|---|---|
| No angina, no ischaemic changes on ECG (n = 5834) | No angina, ischaemic changes on ECG (n = 545) | Angina, no ischaemic changes on ECG (n = 517) | Angina, ischaemic changes on ECG (n = 152) | No angina, no ischaemic changes on ECG (n = 6961) | No angina, ischaemic changes on ECG (n = 594) | Angina, no ischaemic changes on ECG (n = 681) | Angina, ischaemic changes on ECG (n = 118) | |
| Age (years)† | 54 (6) | 56 (6)*** | 56 (5)*** | 57 (5)*** | 54 (6) | 56 (5)*** | 55 (6)*** | 58 (5)*** |
| History of stroke‡ | 55 (0.9) | 19 (3.5)*** | 13 (2.5)** | 6 (4.0)** | 53 (0.8) | 30 (5.1)*** | 12 (1.8)** | 9 (7.6)*** |
| Rose myocardial infarction‡ | 380 (6.5) | 98 (18.0)*** | 136 (26.3)*** | 74 (48.7)*** | 296 (4.3) | 58 (9.8)*** | 121 (17.8)*** | 29 (24.6)*** |
| Current or ex‐smoker‡ | 4811 (82.5) | 462 (84.8) | 463 (89.6)*** | 131 (86.2) | 3786 (54.4) | 284 (47.8)** | 387 (56.8) | 69 (58.5) |
| Diabetes‡ | 67 (1.1) | 10 (1.6) | 9 (1.7) | 4 (2.6) | 70 (1.0) | 17 (2.9)*** | 8 (1.2) | 5 (4.2)** |
| Blood glucose (mmol/l)† | 5.1 (1.6) | 5.5 (2.1)*** | 5.1 (1.6) | 5.2 (1.3) | 5.0 (1.3) | 5.4 (2.2)** | 5.1 (1.3) | 5.6 (2.3)* |
| Plasma cholesterol (mmol/l)† | 5.9 (1.0) | 5.9 (1.0)* | 5.9 (1.0) | 6.0 (1.0)* | 6.4 (1.1) | 6.5 (1.1) | 6.4 (1.1) | 6.6 (1.2)* |
| Body mass index (kg/m2)† | 25.8 (3.4) | 26.5 (3.4)*** | 25.9 (3.6) | 26.3 (3.6) | 25.6 (4.4) | 26.7 (4.9)*** | 26.9 (4.9)*** | 27.0 (5.5)** |
| Systolic BP (mm Hg)† | 147 (22) | 159 (26)*** | 150 (24)* | 154 (±25)** | 149 (24) | 163 (29)*** | 153 (27)*** | 165 (31)*** |
| Diastolic BP (mm Hg)† | 85 (13) | 91 (15)*** | 86 (14) | 89 (16)** | 84 (13) | 90 (15)*** | 87 (14)*** | 92 (17)*** |
| Cardiothoracic ratio† | 0.46 (0.05) | 0.49 (0.05)*** | 0.47 (0.05)* | 0.50 (0.05)*** | 0.48 (0.05) | 0.50 (0.06)*** | 0.49 (0.05)*** | 0.52 (0.06)*** |
| Adjusted FEV1 (%)† | 90.2 (21.6) | 85.4 (21.8)*** | 78.7 (25.7)*** | 79.9 (25.1)*** | 93.7 (22.7) | 88.8 (23.6)*** | 84.8 (25.6)*** | 83.5 (26.2)*** |
| Chronic bronchitis‡ | 247 (4.2) | 38 (7.0)** | 100 (19.3)*** | 27 (17.8)*** | 207 (3.0) | 32 (5.4)** | 96 (14.1)*** | 9 (7.6)* |
| Atrial fibrillation on ECG‡ | 35 (0.6) | 10 (1.8)** | 5 (1.0) | 3 (2.0) | 20 (0.3) | 14 (2.4)*** | 6 (0.9)* | 7 (5.9)*** |
BP, blood pressure; ECG, electrocardiogram; FEV1, forced expiratory volume in one second.
*p<0.05; **p<0.01; ***p<0.001 for each group compared with the group having no angina or no ischaemic changes on ECG.
†Values are mean (SD).
‡Values are n (%).