| Cardiovascular complications | Non-cardiovascular complications | |||||||||||
| Area-based income index (quintiles) | Area-based income index (quintiles) | |||||||||||
| I high | II | III | IV | V low | p Trend | I high | II | III | IV | V low | p Trend | |
| Coronary artery bypass grafting | ||||||||||||
| % | 5.2 | 4.7 | 5.4 | 5.2 | 6.4 | 5.8 | 6.6 | 5.7 | 5.1 | 5.7 | ||
| OR1 (95% CI) | 1.00 | 0.91 (0.71 to 1.47) | 1.02 (0.67 to 1.38) | 0.96 (0.85 to 1.72) | 1.21 (0.96 to 1.69) | 0.249 | 1.00 | 1.14 (0.81 to 1.61) | 0.99 (0.70 to 1.41) | 0.90 (0.63 to 1.28) | 1.02 (0.72 to 1.44) | 0.594 |
| OR2 (95% CI) | 1.00 | 0.87 (0.62 to 1.23) | 0.93 (0.67 to 1.30) | 0.89 (0.64 to 1.24) | 1.08 (0.79 to 1.49) | 0.543 | 1.00 | 1.11 (0.81 to 1.53) | 0.97 (0.70 to 1.33) | 0.88 (0.63 to 1.22) | 0.99 (0.71 to 1.36) | 0.455 |
| Valve replacement | ||||||||||||
| % | 6.1 | 6.6 | 5.7 | 6.4 | 9.0 | 7.1 | 8.0 | 6.7 | 8.3 | 8.2 | ||
| OR* (95% CI) | 1.00 | 1.11 (0.64 to 1.91) | 0.93 (0.54 to 1.59) | 1.02 (0.60 to 1.72) | 1.54 (0.94 to 2.53) | 0.114 | 1.00 | 1.10 (0.63 to 1.91) | 0.93 (0.54 to 1.61) | 1.19 (0.70 to 2.02) | 1.26 (0.73 to 2.16) | 0.352 |
| OR† (95% CI) | 1.00 | 1.09 (0.63 to 1.88) | 0.88 (0.51 to 1.51) | 0.97 (0.57 to 1.65) | 1.47 (0.89 to 2.42) | 0.190 | 1.00 | 1.03 (0.62 to 1.72) | 0.89 (0.54 to 1.47) | 1.13 (0.70 to 1.83) | 1.18 (0.72 to 1.92) | 0.421 |
| Carotid endarterectomy | ||||||||||||
| % | 5.1 | 5.2 | 6.2 | 5.8 | 5.6 | 2.4 | 2.1 | 2.0 | 2.1 | 2.3 | ||
| OR* (95% CI) | 1.00 | 0.96 (0.58 to 1.59) | 1.23 (0.76 to 2.00) | 1.07 (0.66 to 1.72) | 1.00 (0.62 to 1.61) | 0.924 | 1.00 | 0.87 (0.39 to 1.95) | 0.86 (0.39 to 1.89) | 0.84 (0.39 to 1.81) | 1.02 (0.49 to 2.14) | 0.928 |
| OR† (95% CI) | 1.00 | 0.87 (0.56 to 1.36) | 1.09 (0.71 to 1.66) | 0.93 (0.61 to 1.42) | 0.88 (0.58 to 1.33) | 0.634 | 1.00 | 0.98 (0.51 to 1.85) | 0.95 (0.50 to 1.79) | 0.93 (0.50 to 1.72) | 0.99 (0.54 to 1.82) | 0.956 |
| Major vascular bypass | ||||||||||||
| % | 16.3 | 10.3 | 12.1 | 15.8 | 12.6 | 23.6 | 10.3 | 20.7 | 14.7 | 13.4 | ||
| OR* (95% CI) | 1.00 | 0.22 (0.03 to 1.39) | 0.36 (0.07 to 1.89) | 1.26 (0.25 to 6.29) | 0.79 (0.17 to 3.73) | 0.426 | 1.00 | 0.37 (0.14 to 0.95) | 0.88 (0.43 to 1.79) | 0.61 (0.28 to 1.31) | 0.54 (0.25 to 1.19) | 0.325 |
| OR† (95% CI) | 1.00 | 0.57 (0.28 to 1.14) | 0.59 (0.31 to 1.13) | 0.99 (0.52 to 1.89) | 0.84 (0.44 to 1.59) | 0.613 | 1.00 | 0.36 (0.17 to 0.74) | 0.80 (0.45 to 1.43) | 0.56 (0.30 to 1.02) | 0.58 (0.33 to 1.01) | 0.275 |
| Repair of unruptured abdominal aorta aneurysm | ||||||||||||
| % | 4.3 | 5.8 | 4.9 | 6.0 | 7.0 | 10.6 | 9.1 | 9.7 | 12.1 | 9.0 | ||
| OR* (95% CI) | 1.00 | 1.33 (0.75 to 2.35) | 1.10 (0.61 to 1.99) | 1.36 (0.77 to 2.39) | 1.56 (0.88 to 2.75) | 0.159 | 1.00 | 0.83 (0.54 to 1.29) | 0.92 (0.60 to 1.42) | 1.07 (0.70 to 1.62) | 0.78 (0.49 to 1.22) | 0.674 |
| OR† (95% CI) | 1.00 | 1.20 (0.65 to 2.22) | 1.01 (0.54 to 1.89) | 1.16 (0.63 to 2.12) | 1.38 (0.76 to 2.49) | 0.368 | 1.00 | 0.78 (0.50 to 1.22) | 0.88 (0.57 to 1.36) | 0.96 (0.63 to 1.47) | 0.72 (0.44 to 1.15) | 0.415 |
*OR two-level logistic regression (hospital and subject). OR adjusted for city of residence, gender, age and comorbidities.
†OR single-level logistic regression. OR adjusted for city of residence, gender, age, comorbidities and hospital.