Table 4

 Level of identification of cause using the algorithm

LevelNo (%)
*In 15 cases no specific cause could be identified by the AIMS reviewers and in four cases a cause was attributed (see text).
V1 ventilation3 (4)
V2 vaporiser6 (9)
E Equipment1 (1)
R Review/Recheck14 (20)
D Drugs27 (39)
Unidentified*19 (27)
Total70 (100)