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. 2014 Jul 8;2014(7):CD009396. doi: 10.1002/14651858.CD009396.pub2

Summary of findings for the main comparison. Trifluoperazine versus low‐potency antipsychotic drugs for schizophrenia.

Trifluoperazine versus low‐potency antipsychotic drugs for schizophrenia
Patient or population: patients with schizophrenia
 Settings: Inpatients and outpatients
 Intervention: Trifluoperazine versus low‐potency antipsychotic drugs
Outcomes Illustrative comparative risks* (95% CI) Relative effect
 (95% CI) No of Participants
 (studies) Quality of the evidence
 (GRADE) Comments
Assumed risk Corresponding risk
Control Trifluoperazine versus low‐potency antipsychotic drugs
Response to treatment ‐ medium term 
 Follow‐up: 4‐6 months Study population RR 0.96 
 (0.59 to 1.56) 120
 (3 studies) ⊕⊕⊝⊝
 low1,2  
364 per 1000 349 per 1000 
 (215 to 567)
Moderate
350 per 1000 336 per 1000 
 (206 to 546)
Leaving the study early: 1. Acceptability of treatment ‐ leaving early due to any reason 
 Follow‐up: 1‐4 months Study population RR 1.25 
 (0.72 to 2.17) 239
 (3 studies) ⊕⊕⊝⊝
 low1,2  
160 per 1000 200 per 1000 
 (115 to 348)
Moderate
182 per 1000 228 per 1000 
 (131 to 395)
Adverse events: 1. General ‐ at least one adverse effect 
 Follow‐up: mean 4 months Study population RR 1.6 
 (0.94 to 2.74) 60
 (1 study) ⊕⊕⊕⊝
 moderate1  
375 per 1000 600 per 1000 
 (352 to 1000)
Moderate
375 per 1000 600 per 1000 
 (352 to 1000)
Adverse events: 2.a. Specific ‐ movement disorders ‐ at least one movement disorder 
 Follow‐up: 6‐26 weeks Study population RR 2.08 
 (0.78 to 5.55) 123
 (2 studies) ⊕⊕⊝⊝
 low1,3  
89 per 1000 186 per 1000 
 (70 to 496)
Moderate
50 per 1000 104 per 1000 
 (39 to 278)
Death See comment See comment Not estimable 0
 (04) See comment  
Sedation See comment See comment Not estimable 0
 (05) See comment  
Quality of life See comment See comment Not estimable 0
 (05) See comment  
*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 Risk of bias: rated 'serious' ‐ most information is from studies at unclear risk of bias, missing or unclear results for incomplete outcome data and selective reporting
 2 Imprecision: rated 'serious' ‐ the total number of events is less than 300 and the estimate of effect includes appreciable benefit/harm.
 3 Imprecision: rated 'serious' ‐ the total number of events is less than 300 and the CI is quite wide
 4 There were no data for this very important outcome
 5 There were no data for this outcome