Table 1. Demographics and comorbidities of patients who underwent colorectal cancer resections at The Prince Charles Hospital between 2010–2018.
| Feature | Number of nil/ low grade complications | Number of high grade complications | Total | P-value |
|---|---|---|---|---|
| (% of nil/low grade complications) | (% of high grade complications) | |||
| Patients | 448 (84) | 85 (16) | 533 | |
| Gender | ||||
| • Male | 215 (48) | 52 (61) | 267 | 0.03 |
| • Female | 233 (52) | 33 (39) | 266 | |
| Median age | 70 | 74 | 67 | 0.01 |
| • (range) | 17–96 | 31–90 | 17–96 | |
| Median BMI | 27 | 28 | 27 | |
| • (range) | 15–59 | 15–40 | ||
| • <20 | 31 (7) | 6 (7) | 37 | 0.24 |
| • 20–24.9 | 119 (27) | 21 (25) | 140 | |
| • 25–29.9 | 171 (38) | 27 (32) | 198 | |
| • 30–39.9 | 110 (25) | 30 (35) | 140 | |
| • >40 | 17 (4) | 1 (1) | 18 | |
| Median ASA | 3 | 3 | ||
| • Grade I | 37 (8) | 4 (5) | 41 | 0.016 |
| • Grade II | 165 (37) | 19 (22) | 185 | |
| • Grade III | 211 (47) | 49 (58) | 259 | |
| • Grade IV | 34 (8) | 13 (15) | 47 | |
| • Grade V | 1 (0) | 0 (0) | 1 | |
| Cardiac | ||||
| • Ischaemic Heart Disease | 74 (17) | 24 (28) | 98 | 0.014 |
| • Coronary Artery Bypass Graft | 29 (7) | 11 (13) | 40 | 0.045 |
| • Percutaneous Coronary Intervention | 26 (6) | 7 (8) | 33 | 0.46 |
| • Pacemaker insertion | 8 (2) | 1 (1) | 9 | 0.69 |
| • Cardiac valve replacement | 17 (4) | 3 (4) | 20 | 1.0 |
| • Heart failure (all types) | 14 (3) | 8 (9) | 22 | 0.014 |
| • Cardiomyopathy | 10 (2) | 8 (9) | 18 | <0.001 |
| • AICD insertion | 6 (1) | 1 (1) | 7 | 0.90 |
| • Hypertension | 224 (50) | 42 (50) | 266 | 1.0 |
| • Pulmonary hypertension | 5 (1) | 1 (1) | 6 | 0.903 |
| • Atrial fibrillation | 48 (10) | 23 (27) | 71 | <0.001 |
| Respiratory | ||||
| • Asthma | 49 (11) | 9 (11) | 58 | 1.0 |
| • COPD | 44 (9) | 18 (21) | 62 | 0.005 |
| • Bronchiectasis | 6 (1) | 0 (0) | 6 | - |
| • Cystic fibrosis | 1 (0) | 0 (0) | 1 | - |
| • Obstructive sleep apnoea | 28 (6) | 6 (7) | 34 | 0.81 |
| Metabolic | ||||
| • Type I Diabetes | 2 (0) | 0 (0) | 2 | - |
| • Type II Diabetes | 84 (19) | 12 (14) | 96 | 0.36 |
| • Hyperlipidaemia | 131 (29) | 27 (32) | 158 | 0.70 |
| Previous cancer | 59 (13) | 17 (20) | 76 | 0.098 |
| Autoimmune | ||||
| • Rheumatoid arthritis | 3 (1) | 0 (0) | 3 | 0.80 |
| • Psoraisis | 8 (2) | 1 (1) | 9 | |
| • Polymyalgia rheumatica | 6 (1) | 0 (0) | 6 | |
| • SLE | 1 (0) | 0 (0) | 1 | |
| Pre-operative renal function | ||||
| • eGFR >90 | 260 (58) | 44 (52) | 304 | 0.60 |
| • eGFR 60–89 | 133 (30) | 25 (30) | 158 | |
| • eGFR 45–59 | 38 (9) | 11 (13) | 49 | |
| • eGFR 30–44 | 16 (4) | 3 (4) | 19 | |
| • eGFR 15–29 | 2 (1) | 1 (1) | 3 | |
| • eGFR < 15 | 0 (0) | 0 (0) | 0 | |
| Current Smoker (within 12 months) | 63 (14) | 13 (15) | 76 | |
BMI, Body Mass Index; ASA, American Society of Anaesthesiologists Physical Status Classification; AICD, Automatic Implantable Cardioverter Defibrillator; COPD, Chronic Obstructive Pulmonary Disease; SLE, Systemic lupus erythematosus.