Summary of findings 2

Acupuncture compared to medical treatment for treating chronic prostatitis/chronic pelvic pain syndrome
Acupuncture compared to medical treatment for chronic prostatitis/chronic pelvic pain syndrome
Patient or population: treating chronic prostatitis/chronic pelvic pain syndrome
Setting: outpatient, Korea, China and Turkey
Intervention: acupuncture
Comparison: medical treatment
Outcomes№ of participants
(studies)
Quality of the evidence
(GRADE)
Relative effect
(95% CI)
Anticipated absolute effects* (95% CI)
Risk with medical treatmentRisk difference with acupuncture
Prostatitis symptoms (NIH‐CPSI total)
assessed with: NIH‐CPSI score
Scale from: 0 to 43
follow‐up: 12 weeks
Benefit is indicated by lower scores
78
(2 RCTs)
⊕⊕⊕⊝
Moderate1,2
The mean prostatitis symptoms (NIH‐CPSI total) ranged from 12 to 16MD 6.05 lower
(7.87 lower to 4.24 lower)
Prostatitis symptoms: response defined as a 6‐point decrease in NIH‐CPSI score
follow‐up: 6 weeks3
24
(1 RCT)
⊕⊕⊝⊝
Low1,3
RR 3.57
(1.45 to 8.80)
Study population
250 per 1000643 more per 1000
(112 more to 1950 more)
Adverse events
follow‐up: 12 weeks
78
(2 RCTs)
⊕⊕⊝⊝
Low1,3
There were no adverse events in either group.
Sexual dysfunction ‐ not reported
Quality of life ‐ not reported
Depression and anxiety ‐ not reported
*The risk in the intervention group (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; MD: mean difference; NIH‐CPSI: National Institutes of Health ‐ Chronic Prostatitis Symptom Index; RCT: randomised controlled trial; RR: risk ratio.
GRADE Working Group grades of evidence
High quality: we are very confident that the true effect lies close to that of the estimate of the effect.
Moderate quality: we are moderately confident in the effect estimate: the true effect is likely to be close to the estimate of the effect, but there is a possibility that it is substantially different.
Low quality: our confidence in the effect estimate is limited: the true effect may be substantially different from the estimate of the effect.
Very low quality: we have very little confidence in the effect estimate: the true effect is likely to be substantially different from the estimate of effect.

1Downgraded 1 level due to risk of bias: included studies were not blinded, which affects both detection and performance bias.

2The initial analysis had greater statistical inconsistency (I2 = 70%) and included one study that included people with chronic prostatitis/chronic pelvic pain syndrome using criteria that differed from that recommended by the Research Consensus (Chen 2009). In a sensitivity analysis, we excluded the results from this study and found greater statistical consistency (I2 = 0%), therefore, we chose to report these results in the 'Summary of findings' table. For this reason, we did not downgrade due to inconsistency.

3Downgraded 1 level due to imprecision issues: few events and wide confidence interval.

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