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. 2017 Jul 31;2017(7):CD009377. doi: 10.1002/14651858.CD009377.pub3

Summary of findings 5. HALOPERIDOL compared to OTHER ANTIPSYCHOTIC: d. LOXAPINE for psychosis‐induced aggression or agitation.

HALOPERIDOL compared with OTHER ANTIPSYCHOTICS: d. LOXAPINE for psychosis‐induced aggression or agitation
Patient or population: patients to psychosis‐induced aggression or agitation
 Setting: inpatients; emergency room.
 Intervention: HALOPERIDOL
 Comparison: OTHER ANTIPSYCHOTICS: d. LOXAPINE
Outcomes Illustrative comparative risks* (95% CI) Relative effect
 (95% CI) No of Participants
 (studies) Quality of the evidence
 (GRADE) Comments
Assumed risk Corresponding risk
OTHER ANTIPSYCHOTICS: d. LOXAPINE HALOPERIDOL
Tranquillisation or asleep ‐ not asleep by 12 hours Low1 RR 4.31 
 (0.54 to 34.48) 54
 (1 study) ⊕⊝⊝⊝
 very low2,3,4  
10 per 1000 43 per 1000 
 (5 to 345)
Moderate1
50 per 1000 215 per 1000 
 (27 to 1000)
High1
100 per 1000 431 per 1000 
 (54 to 1000)
Global outcome: specific 
 Not sedated at 60 minutes * Low1 RR 3.50 
 (0.86 to 14.18) 30
 (1 study) ⊕⊝⊝⊝
 very low2,4,5,6 * data for prespecified outcome Repeated need for rapid tranquillisation were not reported
10 per 1000 57 per 1000 
 (9 to 345)
Moderate1
100 per 1000 569 per 1000 
 (94 to 1000)
High1
200 per 1000 1000 per 1000 
 (188 to 1000)
Specific behaviour ‐ aggression ‐ no overall improvement Low1 RR 1.10 
 (0.69 to 1.76) 30
 (1 study) ⊕⊝⊝⊝
 very low2,4,6,7  
500 per 1000 550 per 1000 
 (345 to 880)
Moderate1
650 per 1000 715 per 1000 
 (448 to 1000)
High1
800 per 1000 880 per 1000 
 (552 to 1000)
Global outcome: no change at 48 hours 
 CGI Low1 RR 0.93 
 (0.14 to 6.15) 56
 (1 study) ⊕⊕⊝⊝
 low2,4  
10 per 1000 9 per 1000 
 (1 to 62)
Moderate1
70 per 1000 65 per 1000 
 (10 to 431)
High1
140 per 1000 130 per 1000 
 (20 to 861)
Adverse effects: Specific ‐ dystonia between 0‐3 days (IM phase) Low1 RR 0.94 
 (0.06 to 13.93) 35
 (1 study) ⊕⊝⊝⊝
 very low2,4  
10 per 1000 9 per 1000 
 (1 to 139)
Moderate1
50 per 1000 47 per 1000 
 (3 to 697)
High1
100 per 1000 94 per 1000 
 (6 to 1000)
Adverse effects: Specific ‐ rigidity between 0‐3 days (IM phase) Low1 RR 0.88 
 (0.65 to 1.19) 35
 (1 study) ⊕⊝⊝⊝
 very low2,4,6  
750 per 1000 660 per 1000 
 (487 to 893)
Moderate1
850 per 1000 748 per 1000 
 (552 to 1000)
High1
950 per 1000 836 per 1000 
 (617 to 1000)
Economic outcome ‐ not reported See comment See comment Not estimable See comment No study reported this outcome.
*The basis for the assumed risk (e.g. the median control group risk across studies) is provided in footnotes. The corresponding risk (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; RR: Risk ratio;
GRADE Working Group grades of evidence
 High quality: Further research is very unlikely to change our confidence in the estimate of effect.
 Moderate quality: Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate.
 Low quality: Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate.
 Very low quality: We are very uncertain about the estimate.

1 Moderate risk is roughly equal to that of the control group.
 2 Risk of bias: rated 'serious' ‐ method of randomisation not described, allocation concealment not stated, staff administering medication were not blind to the intervention, the number of participants reported as leaving the study at certain time points is inconsistent.
 3 Indirectness: rated 'serious' ‐ reported at 12 hours rather than 30 minutes as stated in protocol.
 4 Imprecision: rated 'serious' ‐ 95% confidence interval is wide.
 5 Indirectness: rated 'serious' ‐ no data on repeated need for rapid tranquillisation, therefore inferred from the data 'not sedated at 60 minutes'.
 6 Publication bias: rated 'strongly suspected' ‐ small study.
 7 Indirectness: rated 'serious' ‐ not able to use threat or injury to self or others as stated in the protocol because this was not reported.