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. 2020 Feb 28;2020(2):CD012670. doi: 10.1002/14651858.CD012670.pub2

Summary of findings for the main comparison. Benzodiazepines (lorazepam) vs placebo for treatment of delirium in non‐ICU settings.

Benzodiazepines (lorazepam) vs placebo for treatment of delirium in non‐ICU settings
Patient or population: end‐of‐life patients with advanced cancer and an episode of agitated delirium
 Settings: acute palliative care unit
 Intervention: benzodiazepine (lorazepam) + haloperidol
 Comparison: placebo + haloperidol
Outcomes Anticipated absolute effects* (95% CI) Relative effect
 (95% CI) No of Participants
 (studies) Certainty of the evidence
 (GRADE) Comments
Risk with Placebo Risk with Benzodiazepines (lorazepam)
Length of delirium episode See comment See comment See comment See comment See comment Outcome not reported
Severity of delirium
 change in MDAS, high = worse
 Follow‐up: baseline to 8 hours Mean was 0.4 MD 2.10 higher (0.96 lower to 5.16 higher) 50
 (1 study) ⊕⊕⊝⊝
 low1  
Any adverse event See comment See comment See comment See comment See comment Outcome not reported
Length of hospital admission (days) 
 Follow‐up: 164 hours Mean was 6 MD 0.00 higher (3.45 lower to 3.45 higher) 58
 (1 study) ⊕⊕⊝⊝
 low1  
Mortality from all causes
 Follow‐up: 8 hours 103 per 1000 34 per 1000
(4 to 312)
RR 0.33
(0.04 to 3.02)
58
 (1 study) ⊕⊕⊝⊝
 low1  
*The risk in the intervention group (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI).
 CI: confidence interval; ESAS: Edmonton symptom assessment system ICU: intensive care unit; MD: mean difference; MDAS: memorial delirium assessment scale; RR: risk ratio
GRADE Working Group grades of evidence
 High certainty: we are very confident that the true effect lies close to that of the estimate of the effect.
 Moderate certainty: we are moderately confident in the effect estimate; the true effect is likely to be close to the estimate of effect, but there is a possibility that it is substantially different.
 Low certainty: our confidence in the effect estimate is limited; the true effect may be substantially different from the estimate of the effect.
 Very low certainty: we have very little confidence in the effect estimate; the true effect is likely to be substantially different from the estimate of effect.

1 Downgraded by two levels due to imprecision: very small sample size and very wide CIs