TABLE 1. Characteristics of patients enrolled as part of the deployment of the eye-tracking platform forming a clinical feasibility study. Pertinent confounding variables related to outcomes of interests as well as variables that predict the development of delirium are presented across the two hospitals; Chelsea and Westminster Hospital (CWH) and West Middelsex Hospital (WMH).
| CWH (Development) | WMH (Validation) | Overall Sessions | |
| Sessions | 186 | 76 | 262 |
| CAM-ICU | |||
| Positive | 75 | 39 | 114 |
| Negative | 69 | 27 | 96 |
| Unable to measure | 42 | 10 | 52 |
| Gender | |||
| Female | 11 | 4 | 15 |
| Male | 21 | 6 | 27 |
| Age (Years) | |||
| Mean ± Standard Deviation |
 |
 |
 |
| Frailty Score | |||
| Mean ± Standard Deviation |
 |
 |
 |
| APACHE-II Probability (%) | |||
| Mean ± Standard Deviation |
 |
 |
 |
| Urea (mmol/L) | |||
| Mean ± Standard Deviation |
 |
 |
 |
| Corticosteroids | |||
| No | 31 | 10 | 41 |
| Yes | 1 | 0 | 1 |
| Admission Type | |||
| Elective | 8 | 2 | 10 |
| Emergency | 24 | 8 | 32 |
| ICU Length of Stay (Days) | |||
| Mean ± Standard Deviation |
 |
 |
 |
| Unit Outcome | |||
| Alive | 25 | 8 | 33 |
| Dead | 7 | 2 | 9 |