Cochrane · systematic review · CD005563

Interventions for preventing delirium in hospitalised non‐ICU patients

Siddiqi, N, Harrison, JK, Clegg, A, et al. · Cochrane Database of Systematic Reviews · 2016 · Cochrane Library

SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
31
current version
GRADE rated
21
No studies
10
Included studies
NR
No studies 10 · 32.3%Ungraded 0 · 0%Very low 7 · 22.6%Low 6 · 19.4%Moderate 8 · 25.8%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

A multi‐component delirium prevention intervention compared to usual care for hospitalised non‐ICU patients

6 questions
OutcomeEffectEvidenceStatus / GRADE
Incidence of delirium validated instruments1
A multi‐component delirium prevention intervention vs usual care
RR 0.69 [0.59, 0.81]7 studies · 1950 participantsModerate
Downgraded: risk of bias
Duration of delirium (days)
A multi‐component delirium prevention intervention vs usual care
no estimate extracted4 studies · 244 participantsVery low
Downgraded: risk of bias
Severity of delirium DRS‐R‐98 and CAM‐S10
A multi‐component delirium prevention intervention vs usual care
no estimate extracted2 studies · 67 participantsLow
Downgraded: risk of bias
Length of admission Days
A multi‐component delirium prevention intervention vs usual care
no estimate extracted6 studies · 1920 participantsModerate
Downgraded: risk of bias
Return to independent living
A multi‐component delirium prevention intervention vs usual care
RR 0.95 [0.85, 1.06]4 studies · 1116 participantsModerate
Downgraded: risk of bias
Inpatient mortality
A multi‐component delirium prevention intervention vs usual care
RR 0.9 [0.56, 1.43]3 studies · 859 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency

Prophylactic cholinesterase inhibitor versus placebo for preventing delirium in hospitalised non‐ICU patients

6 questions
OutcomeEffectEvidenceStatus / GRADE
Incidence of delirium DSM‐IV criteria, DSI, CAM,
Prophylactic cholinesterase inhibitor vs placebo
RR 0.68 [0.17, 2.62]2 studies · 113 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
Duration of delirium ‐ not measured
Prophylactic cholinesterase inhibitor vs placebo
no estimate extractedNRNo studies
Severity of delirium MDAS
Prophylactic cholinesterase inhibitor vs placebo
no estimate extracted1 study · 16 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
Length of admission Days
Prophylactic cholinesterase inhibitor vs placebo
no estimate extracted3 studies · 128 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
Return to independent living ‐ not measured
Prophylactic cholinesterase inhibitor vs placebo
no estimate extractedNRNo studies
Inpatient mortality ‐ not measured
Prophylactic cholinesterase inhibitor vs placebo
no estimate extractedNRNo studies

Prophylactic antipsychotic medications for preventing delirium in hospitalised non‐ICU patients

6 questions
OutcomeEffectEvidenceStatus / GRADE
Incidence of delirium CAM/NEECHAM
RR 0.55 [0.23, 1.3]3 studies · 916 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
Duration of delirium Days
no estimate extracted2 studies · 178 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
Severity of delirium DRS. Scale from: 0 to 46.
no estimate extracted2 studies · 178 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
Length of admission Days
no estimate extracted1 study · 68 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
Return to independent living ‐ not measured
no estimate extractedNRNo studies
Inpatient mortality ‐ not measured
no estimate extractedNRNo studies

Prophylactic melatonin for preventing delirium in hospitalised non‐ICU patients

7 questions
OutcomeEffectEvidenceStatus / GRADE
Incidence of delirium CAM/DSM IV/DRS‐R‐9s
RR 0.53 [0.09, 3.25]3 studies · 529 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
Duration of delirium Days
no estimate extracted1 study · 104 participantsModerate
Downgraded: risk of bias, imprecision, inconsistency
Severity of delirium (binary severe vs. not severe) Number of patients requiring greater than 3mg of haloperidol
RR 0.86 [0.58, 1.27]1 study · 104 participantsModerate
Downgraded: risk of bias, imprecision, inconsistency
Severity of delirium DRS‐R‐98 score
no estimate extracted1 study · 6 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
Length of admission Days
no estimate extracted2 studies · 500 participantsModerate
Downgraded: risk of bias, imprecision, inconsistency
Return to independent living ‐ not measured
no estimate extractedNRNo studies
In‐hospital mortality Mortality
RR 0.84 [0.37, 1.88]3 studies · 543 participantsLow
Downgraded: risk of bias, imprecision, inconsistency

Bispectral index (BIS)‐guided anaesthesia versus BIS‐blinded anaesthesia/clinical judgement for preventing delirium in hospitalised non‐ICU patients

6 questions
OutcomeEffectEvidenceStatus / GRADE
Incidence of delirium CAM, DSM‐IV
Bispectral index (BIS)‐guided anaesthesia vs BIS‐blinded anaesthesia/clinical judgement
RR 0.71 [0.6, 0.85]2 studies · 2057 participantsModerate
Downgraded: risk of bias
Duration of delirium ‐ not measured
Bispectral index (BIS)‐guided anaesthesia vs BIS‐blinded anaesthesia/clinical judgement
no estimate extractedNRNo studies
Severity of delirium ‐ not measured
Bispectral index (BIS)‐guided anaesthesia vs BIS‐blinded anaesthesia/clinical judgement
no estimate extractedNRNo studies
Length of admission Days
Bispectral index (BIS)‐guided anaesthesia vs BIS‐blinded anaesthesia/clinical judgement
no estimate extracted2 studies · 2057 participantsModerate
Downgraded: risk of bias
Return to independent living ‐ not measured
Bispectral index (BIS)‐guided anaesthesia vs BIS‐blinded anaesthesia/clinical judgement
no estimate extractedNRNo studies
In‐hospital mortality ‐ not measured
Bispectral index (BIS)‐guided anaesthesia vs BIS‐blinded anaesthesia/clinical judgement
no estimate extractedNRNo studies