Donati et al evaluated surgical inpatients for operative risk based on a number of clinical factors. The authors from Marche Polytechnic University, and University La Sapienza in Italy.
Patient selection: surgical patient from 1 to 94 years of age, with ASA status from 1 to 4
Exclusions: cardiac surgery, Cesarean section
Outcome: in-hospital mortality
Parameters:
(1) surgical complexity = major vs (minor or moderate)
(2) surgical acuity = elective vs (urgent or emergency)
(3) age group
(4) ASA class from 1 to 4
Major/Minor |
Acuity |
Age Group |
ASA |
Percent |
major |
elective |
< 50 |
1 |
0.3 |
major |
elective |
< 50 |
2 |
0.9 |
major |
elective |
< 50 |
3 |
2.7 |
major |
elective |
< 50 |
4 |
7.6 |
major |
elective |
50 to 69 |
1 |
0.5 |
major |
elective |
50 to 69 |
2 |
1.7 |
major |
elective |
50 to 69 |
3 |
4.9 |
major |
elective |
50 to 69 |
4 |
13.4 |
major |
elective |
>= 70 |
1 |
0 |
major |
elective |
>= 70 |
2 |
2.8 |
major |
elective |
>= 70 |
3 |
7.9 |
major |
elective |
>= 70 |
4 |
20.3 |
major |
urgent/emerg |
< 50 |
1 |
1.6 |
major |
urgent/emerg |
< 50 |
2 |
4.5 |
major |
urgent/emerg |
< 50 |
3 |
12.4 |
major |
urgent/emerg |
< 50 |
4 |
29.6 |
major |
urgent/emerg |
50 to 69 |
1 |
2 |
major |
urgent/emerg |
50 to 69 |
2 |
8.2 |
major |
urgent/emerg |
50 to 69 |
3 |
21 |
major |
urgent/emerg |
50 to 69 |
4 |
44.3 |
major |
urgent/emerg |
>= 70 |
1 |
0 |
major |
urgent/emerg |
>= 70 |
2 |
12.9 |
major |
urgent/emerg |
>= 70 |
3 |
30.6 |
major |
urgent/emerg |
>= 70 |
4 |
56.8 |
minor/mod |
elective |
< 50 |
1 |
0.05 (< 0.1) |
minor/mod |
elective |
< 50 |
2 |
0.1 |
minor/mod |
elective |
< 50 |
3 |
0.4 |
minor/mod |
elective |
< 50 |
4 |
1.2 |
minor/mod |
elective |
50 to 69 |
1 |
0.1 |
minor/mod |
elective |
50 to 69 |
2 |
0.3 |
minor/mod |
elective |
50 to 69 |
3 |
0.8 |
minor/mod |
elective |
50 to 69 |
4 |
2.3 |
minor/mod |
elective |
>= 70 |
1 |
0 |
minor/mod |
elective |
>= 70 |
2 |
0.4 |
minor/mod |
elective |
>= 70 |
3 |
1.3 |
minor/mod |
elective |
>= 70 |
4 |
3.7 |
minor/mod |
urgent/emerg |
< 50 |
1 |
0.2 |
minor/mod |
urgent/emerg |
< 50 |
2 |
0.7 |
minor/mod |
urgent/emerg |
< 50 |
3 |
2.1 |
minor/mod |
urgent/emerg |
< 50 |
4 |
6 |
minor/mod |
urgent/emerg |
50 to 69 |
1 |
0.4 |
minor/mod |
urgent/emerg |
50 to 69 |
2 |
1.3 |
minor/mod |
urgent/emerg |
50 to 69 |
3 |
3.9 |
minor/mod |
urgent/emerg |
50 to 69 |
4 |
10.8 |
minor/mod |
urgent/emerg |
>= 70 |
1 |
0 |
minor/mod |
urgent/emerg |
>= 70 |
2 |
2.2 |
minor/mod |
urgent/emerg |
>= 70 |
3 |
6.3 |
minor/mod |
urgent/emerg |
>= 70 |
4 |
16.7 |
Specialty: Anesthesiology