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. 2014 Apr 3;2014(4):CD006531. doi: 10.1002/14651858.CD006531.pub2

Summary of findings 9. Paroxetine compared with fluoxetine for depression.

Paroxetine compared with fluoxetine for depression
Patient or population: patients with depression
 Settings: in‐ and out‐patients
 Intervention: paroxetine
 Comparison: fluoxetine
Outcomes Illustrative comparative risks* (95% CI) Relative effect
 (95% CI) No of Participants
 (studies) Quality of the evidence
 (GRADE) Comments
Assumed risk Corresponding risk
Fluoxetine Paroxetine
Failure to respond at endpoint (6‐12 weeks) 386 per 1000 555 per 1000 
 (332 to 436) OR 1.98 
 (0.79 to 1.23) 2418
 (11 studies) ⊕⊕⊕⊝
 moderate1  
Failure to respond at 1‐4 weeks See comment See comment Not estimable 0
 (0) See comment No trial reported this outcome.
Failure to respond at 16‐24 weeks See comment See comment Not estimable 0
 (0) See comment No trial reported this outcome.
Failure to remit at endpoint See comment See comment Not estimable 0
 (0) See comment No trial reported this outcome.
SMD at endpoint   The mean SMD at endpoint in the intervention groups was
 0.04 standard deviations higher 
 (0.05 lower to 0.12 higher)   2109
 (9 studies) ⊕⊕⊕⊝
 moderate1 This effect approaches zero.
Failure to complete ‐ any cause ‐ 
 total drop out rate 325 per 1000 336 per 1000 
 (300 to 372) OR 1.05 
 (0.89 to 1.23) 2798
 (13 studies) ⊕⊕⊕⊝
 moderate1  
Participants with at least some Side Effects 774 per 1000 763 per 1000 
 (703 to 814) OR 0.94 
 (0.69 to 1.28) 2255
 (9 studies) ⊕⊕⊕⊝
 moderate1  
*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; SMD: standardized mean difference; OR: Odds 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 Blinding stated but not tested. No information on randomisation procedures and allocation concealment.