Table 1.
Baseline characteristics of CABG patients by weekly alcohol consumption
| Characteristics | Level | 0 units (n = 554) | 1–14 units (n = 783) | 15–21 units (n = 296) | >21 units (n = 286) | Total (n = 1,919) | P-value |
|---|---|---|---|---|---|---|---|
| Sex | Male | 394 (71.1) | 647 (82.6) | 291 (98.3) | 267 (93.4) | 1599 (83.3) | <0.0001 |
| Age | median [IQR] | 66.9 [13.1] | 68.1 [13.1] | 65.3 [10.6] | 66.2 [11.8] | 67.0 [12.5] | 0.0039 |
| Smoking status | Never smoked | 158 (30.2) | 186 (24.4) | 58 (20.5) | 36 (14.3) | 438 (24.1) | |
| Former smoker | 255 (48.8) | 443 (58.1) | 147 (51.9) | 145 (57.5) | 990 (54.4) | ||
| Smoking | 110 (21.0) | 133 (17.5) | 78 (27.6) | 71 (28.2) | 392 (21.5) | < 0.0001 | |
| Missing | 31 | 21 | 13 | 34 | 99 | ||
| BMI | Underweight or normal weight | 149 (26.9) | 280 (35.8) | 86 (29.1) | 82 (28.8) | 597 (31.1) | |
| Overweight | 247 (44.7) | 349 (44.6) | 139 (47.0) | 137 (48.1) | 872 (45.5) | ||
| Obese | 157 (28.4) | 154 (19.7) | 71 (24.0) | 66 (23.2) | 448 (23.4) | 0.0019 | |
| Missinga | . | . | . | . | < 3 | ||
| Household incomeb | Quartile 1 | 142 (25.6) | 155 (19.8) | 41 (13.9) | 52 (18.2) | 390 (20.3) | |
| Quartile 2 | 118 (21.3) | 140 (17.9) | 44 (14.9) | 60 (21.0) | 362 (18.9) | ||
| Quartile 3 | 141 (25.5) | 178 (22.7) | 74 (25.0) | 54 (18.9) | 447 (23.3) | ||
| Quartile 4 | 153 (27.6) | 310 (39.6) | 137 (46.3) | 120 (42.0) | 720 (37.5) | < 0.0001 | |
| Educational level | Basic school | 258 (49.0) | 289 (37.6) | 80 (27.6) | 85 (30.5) | 712 (38.2) | |
| High school education | 14 (2.7) | 14 (1.8) | 10 (3.4) | 5 (1.8) | 43 (2.3) | ||
| Vocational education | 190 (36.1) | 330 (42.9) | 136 (46.9) | 118 (42.3) | 774 (41.5) | ||
| Short or medium higher education | 47 (8.9) | 96 (12.5) | 40 (13.8) | 56 (20.1) | 239 (12.8) | ||
| Long higher education | 18 (3.4) | 40 (5.2) | 24 (8.3) | 15 (5.4) | 97 (5.2) | < 0.0001 | |
| Missing | 27 | 14 | 6 | 7 | 54 | ||
| CABG after 2008 | 387 (69.9) | 534 (68.2) | 244 (82.4) | 144 (50.3) | 1309 (68.2) | < 0.0001 | |
| Hypertension | 319 (57.6) | 433 (55.3) | 149 (50.3) | 174 (60.8) | 1075 (56.0) | 0.0632 | |
| Diabetes | 147 (26.5) | 129 (16.5) | 56 (18.9) | 51 (17.8) | 383 (20.0) | < 0.0001 | |
| COPD | 33 (6.0) | 42 (5.4) | 17 (5.7) | 16 (5.6) | 108 (5.6) | 0.9737 | |
| Heart failure | 391 (70.6) | 590 (75.4) | 231 (78.0) | 201 (70.3) | 1413 (73.6) | 0.0371 | |
| Liver disease | 10 (1.8) | 9 (1.1) | 10 (3.4) | < 3 (< 0.9) | < 32 (<1.7) | 0.0172 | |
| Stroke | 62 (11.2) | 68 (8.7) | 31 (10.5) | 31 (10.8) | 192 (10.0) | 0.4444 | |
| AMI | 208 (37.5) | 268 (34.2) | 119 (40.2) | 106 (37.1) | 701 (36.5) | 0.2845 | |
| Renal failure | 26 (4.7) | 21 (2.7) | 6 (2.0) | 10 (3.5) | 63 (3.3) | 0.1180 | |
| AF | 43 (7.8) | 56 (7.2) | 15 (5.1) | 34 (11.9) | 148 (7.7) | 0.0164 |
BMI Body mass index, COPD chronic obstructive pulmonary disease, AMI acute myocardial infarct, AF atrial fibrillation, CABG after 2008 number of patients who underwent CABG surgery after 2008 (time)
a< 3 observations in some rows
bHousehold income is reported in Danish Kroner (DKK)