Living alone (n=3648) | Not living alone (n=28 728) | P value | |
Any angina, n (%) | 840 (23.0) | 6328 (22.0) | 0.17 |
Angina and CCS class | 0.13 | ||
No angina | 2807 (77.0) | 22 399 (78.0) | |
Angina CCS class I | 263 (7.2) | 1788 (6.2) | |
Angina CCS class II | 417 (11.4) | 3396 (11.8) | |
Angina CCS class III | 150 (4.1) | 1075 (3.7) | |
Angina CCS class IV | 10 (0.3) | 68 (0.2) | |
CHF symptoms including NYHA class, (%) | 0.89 | ||
No CHF | 3098 (84.9) | 24 375 (84.9) | |
CHF NYHA class II | 456 (12.5) | 3642 (12.7) | |
CHF NYHA class III | 94 (2.6) | 709 (2.5) | |
Heart rate (palpation), mean | 68.3 (10.6) | 68.2 (10.6) | 0.79 |
SBP (mm Hg), mean | 132.2 (17.2) | 130.9 (16.6) | <0.001 |
DBP (mm Hg), mean | 76.9 (10.1) | 77.3 (10.0) | 0.020 |
Left ventricular ejection fraction (%), mean | 56.5 (11.3) | 56.0 (11.0) | 0.032 |
Number of vessels with disease, n (%)* | 0.005 | ||
0 | 139 (4.6) | 864 (3.5) | |
1 | 1279 (41.9) | 10 053 (40.9) | |
2 or more | 1634 (53.5) | 13 649 (55.6) | |
Coronary territories with stenosis >50%, n (%)* | |||
Left main | 335 (9.2) | 2500 (8.7) | 0.33 |
Left anterior descending | 2075 (56.9) | 16 827 (58.6) | 0.051 |
Circumflex artery | 1208 (33.1) | 10 468 (36.5) | <0.001 |
Right coronary artery | 1520 (41.7) | 12 590 (43.8) | 0.013 |
Bypass graft | 299 (8.2) | 2300 (8.0) | 0.69 |
No significant stenosis | 146 (4.0) | 906 (3.2) | 0.007 |
Coronary angiography not performed (within 12 months) | 586 (16.1) | 4138 (14.4) | 0.007 |
ECG rhythm, n (%)† | <0.001 | ||
Sinus rhythm | 2462 (93.1) | 20 499 (95.2) | |
Atrial fibrillation/flutter | 121 (4.6) | 702 (3.3) | |
Paced rhythm | 62 (2.3) | 332 (1.5) | |
LBBB | 158 (6.0) | 1025 (4.8) | 0.0063 |
HbA1C (%), mean (SD) | 6.7 (1.2) | 6.8 (1.8) | 0.018 |
Creatinine (mmol/L), median (25th, 75th quartiles) | 87 (74, 100) | 88 (76, 102) | <0.001 |
Haemoglobin (g/dL), median (25th, 75th quartiles) | 13.9 (12.9, 14.9) | 14.1 (13.0, 15.0) | <0.001 |
Fasting blood glucose (mmol/L), median (25th, 75th quartiles) | 5.6 (5.0, 6.5) | 5.7 (5.1, 6.7) | <0.001 |
Total cholesterol (mmol/L), median (25th, 75th quartiles) | 4.4 (3.7, 5.1) | 4.3 (3.7, 5.0) | 0.002 |
HDL (mmol/L), median (25th, 75th quartiles) | 1.2 (1.0, 1.5) | 1.1 (1.0, 1.4) | <0.001 |
LDL (mmol/L), median (25th, 75th quartiles) | 2.37 (1.89, 2.94) | 2.37 (1.90, 2.94) | 0.68 |
Fasting triglycerides (mmol/L), median (25th, 75th quartiles) | 1.39 (1.00, 1.88) | 1.40 (1.02, 1.93) | 0.15 |
*Investigators reported number of vessels with disease and number of coronary territories with significant stenosis (>50%) independent of whether the patient had a recent angiogram (within 12 months). These data were investigator reported independent of the most recent available angiogram results and may not be mutually exclusive.
†Data were recorded if an ECG was available for whether the patient was in sinus rhythm, atrial fibrillation/atrial flutter, paced rhythm or LBBB. The remaining patients may not have had ECG data available or may be in another rhythm then above.
CCS, Canadian Cardiovascular Society; CHF, congestive heart failure; DBP, diastolic blood pressure; HbA1C, haemoglobin A1C; HDL, high-density lipoprotein; LBBB, left bundle branch block; LDL, low-density lipoprotein; NYHA, New York Heat Association; SBP, systolic blood pressure.