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Using meta-regression approach to explore the dose-response association between acupuncture sessions and acupuncture effects on chronic prostatitis/chronic pelvic pain syndrome

   
@article{ATM22758,
	author = {Zongshi Qin and Jiani Wu and Chang Xu and Zhishun Liu},
	title = {Using meta-regression approach to explore the dose-response association between acupuncture sessions and acupuncture effects on chronic prostatitis/chronic pelvic pain syndrome},
	journal = {Annals of Translational Medicine},
	volume = {7},
	number = {6},
	year = {2018},
	keywords = {},
	abstract = {Background: The benefits of acupuncture on chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) have been well established according to previous studies. However, uncertainty exists regarding the dose-response relationship between acupuncture sessions and acupuncture effects for CP/CPPS. The objective of this study is to explore the association between the acupuncture sessions and its effects based on previously published data. 
Methods: A non-linear meta-regression approach with restricted cubic spline (RCS) was used to investigate the dose-response relationship between acupuncture sessions and its effects on the National Institutes of Health Chronic Prostatitis Symptom Index (NIH-CPSI). PubMed, EMBASE, and Cochrane CENTRAL were searched up to May 20, 2018. Randomized controlled trials (RCTs) and case series studies (CSSs) reported the treatment sessions of acupuncture for CP/CPPS with at least two categories were eligible for inclusion.
Results: Ten studies involving 329 participants were included, the results showed a J-shaped dose-response association between acupuncture sessions and NIH-CPSI score (range 0 to 43, with higher score indicating greater CP/CPPS symptoms). Overall, more acupuncture sessions received for CP/CPPS patients is associated with increased symptom relieving. After 6 acupuncture sessions, the NIH-CPSI decreased from 26.1 (95% CI: 25.3–27.0) to 18.5 (95% CI: 11.6–25.4), with a between-session difference of −7.6 (95% CI: −14.6 to −0.7). Considering the 95%CI, both robust-error meta-regression modeling [MD: −8.3 (95% CI: −10.4 to −6.3)] and sensitivity analysis without CSSs [MD: −8.1 (95% CI: −9.5 to −6.7)] demonstrated that 18 acupuncture sessions could reach a clinically meaningful improvement regarding NIH-CPSI score. 
Conclusions: There appear to be dose-response relationship between acupuncture sessions and CP/CPPS outcome. Prolonged acupuncture sessions were associated with less NIH-CPSI score. According to current evidence, six acupuncture sessions might be the minimal required ‘dose’ to reach its clinical effects.},
	issn = {2305-5847},	url = {https://atm.amegroups.org/article/view/22758}
}