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

Summary of findings 13. Paroxetine compared with mirtazapine for depression.

Paroxetine compared with mirtazapine for depression
Patient or population: patients with depression
 Settings: in‐ and out‐patients
 Intervention: paroxetine
 Comparison: mirtazapine
Outcomes Illustrative comparative risks* (95% CI) Relative effect
 (95% CI) No of Participants
 (studies) Quality of the evidence
 (GRADE) Comments
Assumed risk Corresponding risk
Mirtazapine Paroxetine
Failure to respond at endpoint (6‐12 weeks) 509 per 1000 554 per 1000 
 (483 to 625) OR 1.20 
 (0.90 to 1.61) 766
 (4 studies) ⊕⊕⊕⊝
 moderate1  
Failure to respond at 1‐4 weeks 735 per 1000 869 per 1000 
 (797 to 918) OR 2.39 
 (1.42 to 4.02) 726
 (3 studies) ⊕⊕⊕⊝
 moderate1  
Failure to respond at 16‐24 weeks Study population OR 1.41 
 (0.81 to 2.48) 726
 (3 studies) ⊕⊕⊕⊝
 moderate1  
735 per 1000 869 per 1000 
 (797 to 918)
Moderate
   
Failure to remit at endpoint 597 per 1000 692 per 1000 
 (626 to 753) OR 1.52 
 (1.13 to 2.06) 766
 (4 studies) ⊕⊕⊕⊝
 moderate1  
SMD at endpoint   The mean SMD at endpoint in the intervention groups was
 0.33 standard deviations higher(0.08 to 0.58 higher)   246
 (1 study) ⊕⊕⊕⊝
 moderate1 The point estimate of the effect size corresponds to a small effect according to Cohen 1992.
Failure to complete ‐ any cause ‐ 306 per 1000 357 per 1000 
 (286 to 434) OR 1.26 
 (0.91 to 1.74) 726
 (3 studies) ⊕⊕⊕⊝
 moderate1  
Participants with at least some Side Effects 743 per 1000 756 per 1000 
 (687 to 813) OR 1.07 
 (0.76 to 1.50) 726
 (3 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.