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. 2021 Jul 19;10(3):e001320. doi: 10.1136/bmjoq-2020-001320

Table 1.

Characteristics of patients before and after project implementation

Baseline Implementation P value
N=8411 % N=8090 %
Average age (years) 50.4±13.9 50.5±13.8 0.66
Average surgical case time (min) 314.5±131.7 316.6±137.8 0.32
Gender (% male) 3833 45.6 3604 44.5 0.19
Hospital 1 5140 61.1 4853 60.0 <0.001
Hospital 2 2249 26.7 2421 29.9
Hospital 3 875 10.4 615 7.6
Hospital 4 147 1.7 201 2.5
ASA PS 1 1110 13.2 1067 13.2 0.182
ASA PS 2 4632 55.1 4540 56.1
ASA PS 3 2431 28.9 2264 28.0
ASA PS 4 203 2.4 191 2.4
ASA PS 5 0 0 4 0.05
8376 8066
Breast 277 3.3 340 4.2 <0.001
Cardiac surgery 124 1.5 124 1.5
Cardiology 18 0.2 9 0.1
Dentistry 22 0.3 11 0.1
Gastroenterology 17 0.2 25 0.3
General surgery 1541 18.3 1356 16.8
Genitourology 646 7.7 604 7.5
Gynaecology 423 5.0 410 5.1
Gynecologyoncology 270 3.2 323 4.0
Neurosurgery 1542 18.3 1534 19.0
Orthopaedic 1393 16.6 1461 18.1
OHNS 884 10.5 749 9.3
Plastic surgery 481 5.7 367 4.5
Thoracic surgery 164 1.9 177 2.2
Transplant 190 2.3 171 2.1
Vascular surgery 193 2.3 196 2.4
8185 7857

ASA PS, American Society of Anesthesiologists Physical Status score; OHNS, otolaryngology head and neck surgery.

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