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Table 2 Characteristics of delirium assessments for the 65 delirium trials

From: Heterogeneity in design and analysis of ICU delirium randomized trials: a systematic review

  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)
 4–6 days 9 (14) 6 (14) 1 (8) 2 (22)
 7 days 9 (14) 7 (16) 1 (8) 1 (11)
 8–14 days 6 (9) 2 (5) 4 (33) 0 (0)
 28–30 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)
  1. Values in the table are count (%)
  2. 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
  3. aThe primary delirium assessment instrument reported
  4. 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)