Table 2: Relation between the existence of an indication and the ASA class, normal or abnormal test.
| Non indicated | Indicated | Total | P |
| ASA Class | | | | |
| ASA I | 550/820 (67,08%) | 270/820 (32,92%) | 820/857 (95,69%) | <0,001 |
| ASA II | 0/37 | 37/37 | 37/857 (4,31%) | <0,001 |
| Normal test | 262/447 (58,62%) | 185/447 (41,38%) | 447/627 (71,29%) | <0,005 |
| Abnormal test | 64/180 (35,6%) | 116/180 (64,4%) | 180/627 (28,71%) | <0,001 |
| Abnormal test without specific preoperative management | 58/64 (90,62%) | 77/116 (66,37%) | 135/180 (75%) | <0,001 |
| Abnormal test with specific preoperative management | 6/64 (9,38%) | 39/116 (33,63%) | 45/180 (25%) | <0,001 |