Recording Method | Paper | Initial AIMS | Modified AIMS | |
---|---|---|---|---|
Number of Records | 17,348 | 18,429 | 19,758 | |
ASA PS | 1 | 14.4 % | 15.8 % | 13.2 % |
2 | 40.5 % | 45.2 % | 40.1 % | |
3 | 36.9 % | 31.8 % | 34.9 % | |
4 | 6.6 % | 5.7 % | 9.6 % | |
5 | 0.2 % | 0.3 % | 1.6 % | |
6 | 0.1 % | 0.1 % | 0.1 % | |
Missing | 1.3 % | 1.0 % | 0.6 % | |
ASA PS fractions | 1&2 | 54.9 % | 61.0 % | 53.3 % |
>2 | 43.8 % | 37.9 % | 46.2 % | |
ASA Emergent | E | 8.3 % | 11.8 % | 12.4 % |