Anaesthesia | Total | RA | GA | P-value |
---|---|---|---|---|
N | 2366 | 1560 | 806 | |
Age (years),Mean ± SD | 66.57 ± 8.23 | 67.46 ± 8.01 | 64.86 ± 8.39 | < 0.001 |
BMI,Mean ± SD | 27.68 ± 5.70 | 27.58 ± 6.16 | 27.87 ± 4.68 | 0.247 |
Hb(g/dL),Mean ± SD | 13.08 ± 1.45 | 13.07 ± 1.42 | 13.09 ± 1.52 | 0.747 |
LOS,Mean (SD) Median (Q1-Q3) | 5.37 (4.87) 4.00 (3.00–6.00) | 5.09 (3.98) 4.00 (3.00–5.00) | 5.92 (6.20) 4.00 (4.00–6.00) | < 0.001 |
Duration of surgery (mins), Mean ± SD | 80.52 ± 22.81 | 79.93 ± 22.19 | 81.67 ± 23.95 | 0.079 |
Sex, n (%) | 0.003 | |||
Female | 1794 (75.82%) | 1154 (73.97%) | 640 (79.40%) | |
Male | 572 (24.18%) | 406 (26.03%) | 166 (20.60%) | |
Ethnicity, n (%) | 0.019 | |||
Chinese | 1987 (83.98%) | 1334 (85.51%) | 653 (81.02%) | |
Malay | 169 (7.14%) | 103 (6.60%) | 66 (8.19%) | |
Indian | 137 (5.79%) | 76 (4.87%) | 61 (7.57%) | |
Others | 73 (3.09%) | 47 (3.01%) | 26 (3.23%) | |
ASA Status | 0.007 | |||
1 | 161 (6.80%) | 91 (5.83%) | 70 (8.68%) | |
2 | 2058 (86.98%) | 1381 (88.53%) | 677 (84.00%) | |
3 | 147 (6.21%) | 88 (5.64%) | 59 (7.32%) | |
Smoking, n (%) | 225 (9.51%) | 161 (10.32%) | 64 (7.94%) | 0.061 |
OSA, n (%) | 214 (9.04%) | 144 (9.23%) | 70 (8.68%) | 0.661 |
DM, n (%) | 446 (18.85%) | 293 (18.78%) | 153 (18.98%) | 0.906 |
IHD, n (%) | 127 (5.37%) | 83 (5.32%) | 44 (5.46%) | 0.887 |
CCF, n (%) | 18 (0.76%) | 16 (1.03%) | 2 (0.25%) | 0.039 |
CVA, n (%) | 45 (1.90%) | 29 (1.86%) | 16 (1.99%) | 0.831 |
Creatinine > 2 mg/dl, n (%) | 18 (0.76%) | 11 (0.71%) | 7 (0.87%) | 0.657 |
DM on insulin, n (%) | 39 (1.65%) | 25 (1.60%) | 14 (1.74%) | 0.907 |
Day of week of operation, n (%) | 0.153 | |||
Monday | 390 (16.48%) | 244 (15.64%) | 146 (18.11%) | |
Tuesday | 539 (22.78%) | 354 (22.69%) | 185 (22.95%) | |
Wednesday | 405 (17.12%) | 276 (17.69%) | 129 (16.00%) | |
Thursday | 533 (22.53%) | 368 (23.59%) | 165 (20.47%) | |
Friday | 378 (15.98%) | 247 (15.83%) | 131 (16.25%) | |
Saturday | 121 (5.11%) | 71 (4.55%) | 50 (6.20%) |