Skip to main content

Table 1 Baseline characteristics of CABG patients by weekly alcohol consumption

From: Alcohol consumption and mortality in patients undergoing coronary artery bypass graft (CABG)-a register-based cohort study

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
  1. 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)
  2. a< 3 observations in some rows
  3. bHousehold income is reported in Danish Kroner (DKK)