Table 4.
Stratified analysis of the relationship between the use of different DoA monitors and the main means to assess DoA by the respondents and the occurrence of awareness
| Have you experienced a case of awareness in the past? | |||
|---|---|---|---|
| Had a case of awareness | Did not have a case of awareness | Do not know | |
| All respondents (N = 4037) | 53.0% (51.5-54.6%) | 36.0% (34.6-37.5%) | 11.0% (10.0-11.9%) |
| Respondents who had used a DoA monitor (n = 3434) | 51.5% (49.8-53.2%) | 37.6% (36.0-39.2%) | 10.9% (9.9-11.9%) |
| BIS (n = 3270) | 51.6% (49.9-53.3%) | 37.7% (36.0-39.4%) | 10.7% (9.6-11.8%) |
| Entropy (n = 257) | 50.2% (44.1-56.3%) | 37.4% (31.5-43.3%) | 12.5% (8.5-16.5%) |
| Narcotrend (n = 838) | 50.5% (47.1-53.9%) | 36.9% (33.6-40.2%) | 12.6% (10.4-14.9%) |
| AEP (n = 154) | 58.4% (50.6-66.2%) | 34.4% (26.9-41.9%) | 7.1% (3.0-11.2%) |
| CSI (n = 436) | 50.5% (45.8-55.2%) | 37.2% (32.7-41.7%) | 12.4% (9.3-15.5%) |
| PSI (n = 116) | 52.6% (43.5-61.7%) | 32.8% (24.3-41.3%) | 14.7% (8.3-21.1%) |
| Respondents who had never used a DoA monitor (n = 603) | 61.7% (57.8-65.6%) | 27.2% (23.7-30.8%) | 11.1% (8.6-13.6%) |
| The main means to assess DoA | |||
| Only vital signs (n = 408) | 59.3% (54.5-64.1%) | 31.4% (26.9-35.9%) | 9.3% (6.5-12.1%) |
| ETAC (n = 93) | 45.2% (35.1-55.3%) | 40.9% (30.9-50.9%) | 14% (7.0-21.1%) |
| DoA monitor (n = 876) | 53.0% (49.7-56.3%) | 39.4% (36.2-42.6%) | 7.6% (5.9-9.4%) |
| Dosage of anaesthetics and vital signs (n = 2660) | 52.3% (50.4-54.2%) | 35.5% (33.7-37.3%) | 12.2% (11.0-13.4%) |
DoA Depth of anaesthesia, BIS Bispectral index, AEP Auditory evoked potentials, CSI Cerebral state index, PSI Patient state index, ETAC End-tidal anaesthetic concentration