10. Moderate pain summary of findings.
Estimates of effects, credible intervals, and certainty of the evidence for moderate pain relief in people with chronic pain | |||||||
Bayesian network meta‐analysis summary of findings table | |||||||
Patient or population: people with chronic pain Interventions: mirtazapine, duloxetine, milnacipran. all doses were combined for each antidepressant. Comparator (reference): placebo Outcome: moderate pain relief (defined as 30% reduction in pain intensity from baseline to post‐intervention; measured on a range of scales including 0‐10 VAS, 0‐100 VAS, and hort‐form McGill Pain Questionnaire Direction: Higher is better (i.e. more people reporting moderate pain relief) | |||||||
Total studies: 40 Total participants: 14,208 |
Relative effect (OR and 95% CI) |
Anticipated absolute effect (event rate)* | Certainty of the evidence (CINeMA) |
Ranking** (2.5% to 97.5% credible interval) |
Interpretation of findings | ||
With placebo | With intervention | Difference | |||||
Mirtazapine RCTs: 2 Participants: 462 |
1.92 (1.45 to 2.39) |
70/224 313 per 1000 |
112/238 466 per 1000 |
154 more per 1000 | Lowe | 7 (3 to 13) |
Equivalent NNTB is 6.5 |
Duloxetine RCTs: 24 Participants: 7833 |
1.79 (1.67 to 1.91) |
1324/3271 405 per 1000 |
2469/4562 549 per 1000 |
144 more per 1000 | Moderatea | 7 (4 to 11) |
Equivalent NNTB is 6.9 |
Milnacipran RCTs: 7 Participants: 3056 |
1.7 (1.48 to 1.92) |
347/1128 308 per 1000 |
825/1928 430 per 1000 |
123 more per 1000 | Moderatea | 8 (4 to 12) |
Equivalent NNTB is 8.1 |
Esreboxetine RCTs: 2 Participants: 1374 |
1.65 (1.32 to 1.98) |
107/409 262 per 1000 |
356/965 369 per 1000 |
107 more per 1000 | Lowa,e | 9 (4 to 13) |
Equivalent NNTB is 9.3 |
Network meta‐analysis‐summary of findings table definitions * Anticipated absolute effect. Anticipated absolute effect compares two risks by calculating the difference between the risk of the intervention group with the risk of the control group. ** Mean rank and credible intervals are presented. CI: confidence interval; CINeMA: Confidence in Network Meta‐Analysis; NNTB: number needed to treat for an additional beneficial outcome; OR: odds ratio; RCT: randomised controlled trial; VAS: visual analogue scale The number of participants for each antidepressant reflects the total number of participants taking the antidepressant or placebo from the studies in the network meta‐analysis. | |||||||
CINeMA grades of confidence in the evidence High: further research is unlikely to change our confidence in the estimate of effect. Moderate: further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate. Low: 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: we are very uncertain about the estimate. |
aDowngraded due to within‐study bias. bDowngraded due to imprecision in the estimate. cDowngraded due to heterogeneity in the estimate. dDowngraded due to incoherence in the network. eDowngraded due to a small number of trials and participants; we cannot draw reliable conclusions.