Table 1.
Demographic and comorbidity data on patients from 75-85 years old and those ≥ 85 years old
|
Feature
|
Number of 75-85 years old patients (% of 75-85 years old patients)
|
Number of ≥ 85 years old patients (% of ≥ 85 years old patients)
|
Total
|
P
value
|
| Patients | 136 | 48 | 184 | |
| Gender | ||||
| Male | 66 (49) | 15 (31) | 81 | 0.043 |
| Female | 70 (51) | 33 (69) | 103 | |
| Median BMI | 26 | 25 | ||
| Range | 15-40 | 16-40 | ||
| < 20 | 2 (1) | 2 (4) | 4 | 0.14 |
| 20-24.9 | 44 (32) | 24 (50) | 67 | |
| 25-29.9 | 50 (37) | 16 (33) | 65 | |
| 30-39.9 | 31 (23) | 5 (10) | 36 | |
| > 40 | 9 (7) | 1 (2) | 10 | |
| ASA | ||||
| Grade I | 4 (3) | 1 (2) | 5 | 0.43 |
| Grade II | 29 (21) | 8 (17) | 37 | |
| Grade III | 84 (62) | 29 (60) | 113 | |
| Grade IV | 19 (14) | 9 (19) | 28 | |
| Grade V | 0 (0) | 1 (2) | 1 | |
| Cardiac | ||||
| Ischaemic heart disease | 34 (25) | 16 (34) | 50 | 0.27 |
| Coronary artery bypass graft | 20 (15) | 5 (11) | 25 | 0.025 |
| Percutaneous coronary intervention | 9 (7) | 4 (9) | 13 | 0.75 |
| Pacemaker insertion | 4 (3) | 0 (0) | 4 | 0.57 |
| Cardiac valve replacement | 6 (4) | 3 (6) | 9 | 0.61 |
| Heart failure (all types) | 8 (6) | 3 (6) | 11 | 1.0 |
| Cardiomyopathy | 6 (4) | 3 (6) | 9 | 0.61 |
| AICD insertion | 1 (1) | 1 (2) | 2 | 0.44 |
| Hypertension | 85 (63) | 34 (71) | 119 | 0.38 |
| Pulmonary hypertension | 3 (2) | 0 (0) | 3 | 0.57 |
| Atrial fibrillation | 28 (21) | 12 (25) | 40 | 0.55 |
| Respiratory | ||||
| Asthma | 21 (15) | 4 (8) | 25 | 0.33 |
| COPD | 22 (16) | 4 (8) | 26 | 0.23 |
| Bronchiectasis | 0 (0) | 2 (4) | 2 | 0.017 |
| Cystic fibrosis | 0 (0) | 0 (0) | 0 | - |
| Obstructive sleep apnoea | 10 (7) | 0 (0) | 10 | 0.066 |
| Metabolic | ||||
| Type I Diabetes | 0 (0) | 0 (0) | 0 | - |
| Type II Diabetes | 27 (20) | 11 (23) | 38 | 0.68 |
| Hyperlipidaemia | 52 (38) | 21 (44) | 73 | 0.61 |
| Previous cancer | 31 (23) | 10 (21) | 11 | 0.78 |
| Autoimmune | ||||
| Rheumatoid arthritis | 1 (1) | 1 (2) | 2 | 0.44 |
| Psoraisis | 5 (4) | 1 (2) | 6 | 0.59 |
| Polymyalgia rheumatica | 1 (1) | 2 (4) | 3 | 0.11 |
| SLEII | 1 (1) | 0 (0) | 1 | 0.55 |
| Pre-operative renal function | ||||
| eGFR > 90 | 46 (34) | 12 (25) | 58 | 0.007 |
| eGFR 60-89 | 63 (46) | 15 (31) | 78 | |
| eGFR 45-59 | 18 (13) | 15 (31) | 33 | |
| eGFR 30-44 | 9 (7) | 5 (11) | 14 | |
| eGFR 15-29 | 0 (0) | 1 (2) | 1 | |
| eGFR < 15 | 0 (0) | 0 (0) | 0 | |
| Current smoker (within 12 mo) | 7 (5) | 1 (2) | 8 | 0.68 |
BMI: Body mass index; ASA: American Society of Anaesthesiologists Physical Status Classifications; COPD: Chronic obstructive pulmonary disease; AICD: Automated implantable cardiac defibrillator; eGFR: Estimated glomerular filtration rate; SLE: Systemic lupus erythematosus.