The Efficacy of Acupuncture for the Treatment of Cervical Vertigo: A Systematic Review and Meta-Analysis

Table 1

The basic characteristics of included studies.

Study	Study design	Sample size	Age (years)	Disease duration	Diagnostic criteria	Treatment duration (d)	Follow-up	Adverse reaction/event	Outcome
Zhang, 2013 [28]	RCT	E: 36	E:	E: 11.15 ± 9.34 (m)	Criteria (1994)	28	1 (m)	E: BA	ER; AE
		C: 34	C: 45.68 ± 9.33	C: 9.49 ± 9.86 (m)				C: GR
Wu et al., 2008 [29]	RCT	E: 35	E: 32–72	E: mean = 5.1 (a)	Criteria (1994)	20	2 (m)	NA	ER
		C: 35	C: 28–71	C: mean = 4.8 (a)
Guo and Yan, 2013 [33]	RCT	E: 50	E: 53.68 ± 5.14	E: 21.90 ± 13.91 (m)	Criteria (1992)	20	NA	NA	ER; CSR
		C: 50	C: 52.42 ± 8.96	C: 19.24 ± 13.44 (m)
Luo and Xu, 2012 [34]	RCT	E: 47	E: 55 ± 4	E: 12.0 ± 2.6 (m)	Criteria (1992)	20	NA	NA	ER; Vm
		C: 46	C: 58 ± 4	C: 10.1 ± 2.5 (m)
Yu et al., 2005 [35]	RCT	E: 33	E: 46.3 ± 4.5	E: 2.6 ± 1.3 (a)	Criteria (1992)	14	NA	NA	ER; Vm
		C: 32	C: 47.1 ± 5.5	C: 4.5 ± 1.7 (a)
Liu and Shan, 2015 [30]	RCT	E: 48	E: 48.42 ± 5.31	E: 5.64 ± 1.17 (a)	Criteria (1994)	10	NA	E: NO	ER; AE
		C: 48	C: 46.35 ± 10.21	C: 4.98 ± 1.24 (a)				C: NO
Deng, 2006 [31]	RCT	E: 64	E: 51.5 ± 6.1	E: 38.2 ± 5.6 (d)	Criteria (1994)	30	NA	NA	ER
		C: 50	C: 48.1 ± 6.5	C: 36.2 ± 7.1 (d)
Hua and Li, 2009 [36]	RCT	E: 60	E: 20–61	E: 1–10 (a)	Criteria (1992)	10	NA	NA	ER; CSR
		C: 60	C: 20–61	C: 1–10 (a)
Wu et al., 2010 [37]	RCT	E: 44	E: 58 ± 13	E: 3.81 ± 0.59 (a)	Criteria (1992)	15	NA	NA	ER
		C: 42	C: 62 ± 13	C: 3.54 ± 0.55 (a)
Lin et al., 2011 [32]	RCT	E: 50	E: 56.64 ± 9.87	E: 2.43 ± 2.82 (a)	Criteria (1994)	28	NA	E: NO	ER; Vm
		C: 50	C: 57.16 ± 9.42	C: 2.46 ± 2.39 (a)				C: GR	AE

E: experiment group; C: control group; a: annual; m: month; d: day; Criteria (1994): Diagnosis and Therapeutic Criteria of TCM (1994); Criteria (1992): Diagnostic criteria proposed by the Second National Symposium on Cervical Spondylosis (1992); NA: not available; BA: bruising and allergy of skin; GR: gastrointestinal reaction; ER: effective rate; AE: adverse event; CSR: improvement rate of clinical symptoms; Vm: average blood flow velocity of vertebral-basilar artery; TCM: traditional Chinese medicine.