Table 2.
Characteristics of delirium assessments for the 65 delirium trials
| Overall | Prevention | Treatment | Both | |
|---|---|---|---|---|
| n = 65 | n = 44 | n = 12 | n = 9 | |
| Delirium screening instrumenta | ||||
| CAM-ICU | 42 (65) | 27 (61) | 8 (67) | 7 (78) |
| CAM | 7 (11) | 5 (11) | 0 (0) | 2 (22) |
| DSM Criteria | 5 (8) | 4 (9) | 1 (8) | 0 (0) |
| ICDSC | 4 (6) | 2 (5) | 2 (17) | 0 (0) |
| NEECHAM | 4 (6) | 3 (7) | 1 (8) | 0 (0) |
| Chart review | 2 (3) | 2 (5) | 0 (0) | 0 (0) |
| DSI | 1 (2) | 1 (2) | 0 (0) | 0 (0) |
| Frequency of assessments | ||||
| Daily | 23 (35) | 18 (41) | 3 (25) | 2 (22) |
| Twice daily | 28 (43) | 19 (43) | 6 (50) | 3 (33) |
| More than twice daily | 11 (17) | 5 (11) | 2 (17) | 4 (44) |
| Unclear | 3 (5) | 2 (5) | 1 (8) | 0 (0) |
| Maximum duration of delirium assessment | ||||
| 3 days | 13 (20) | 11 (25) | 2 (17) | 0 (0) |
| 46 days | 9 (14) | 6 (14) | 1 (8) | 2 (22) |
| 7 days | 9 (14) | 7 (16) | 1 (8) | 1 (11) |
| 814 days | 6 (9) | 2 (5) | 4 (33) | 0 (0) |
| 2830 days | 9 (14) | 2 (5) | 3 (25) | 4 (44) |
| To ICU discharge | 8 (12) | 7 (16) | 0 (0) | 1 (11) |
| To hospital discharge | 5 (8) | 4 (9) | 1 (8) | 0 (0) |
| Other | 2 (3) | 2 (5) | 0 (0) | 0 (0) |
| Unclear | 4 (6) | 3 (7) | 0 (0) | 1 (11) |
| Delirium assessments terminated after ICU dischargeb | 41 (63) | 29 (66) | 6 (50) | 6 (67) |
Values in the table are count (%)
Abbreviations: CAM Confusion Assessment Method, CAM-ICU Confusion Assessment Method for the intensive care unit, DSI Delirium Symptom Interview, ICDSC Intensive Care Delirium Screening Checklist, NEECHAM Neelon-Champagne Confusion Scale, DSM Diagnostic and Statistical Manual
aThe primary delirium assessment instrument reported
bAmong the 24 trials that continued delirium assessments after ICU discharge, delirium was assessed using the Confusion Assessment Method (CAM) (21%, n=5), the CAM-ICU (42%, n=10), a combination of CAM and CAM-ICU (17%, n=4), NEECHAM (6%, n=2), DSM criteria (6%, n=2) or the Delirium Symptom Interview (3%, n=1)