Table 7.

Methodological quality assessment and risk-of-bias (Acupuncture (針灸 zhēn jiǔ)).

	Adequate randomization	Concealed allocation	Groups similar at baseline	Patient blinded	Care provider blinded	Outcome assessor blinded	Dropout rate described and acceptable	Intention to treat analysis	Co-interventions avoided or similar	Compliance acceptable	Timing outcome assessment similar	Report free of selective outcome reporting	Total
Ng MM et al 2003	Yes	Unclear	Yes	Yes	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	10/12
Berman BM et al 2004	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	11/12
Tukmachi E et al 2004	Yes	Yes	No	No	No	No	Yes	Yes	No	Yes	Yes	Yes	7/12
Vas J et al 2004	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes	No	Yes	Yes	10/12
Witt C et al 2005	Yes	Unclear	Yes	Yes	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	10/12
Scharf HP et al 2006	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	No	Yes	Yes	Yes	10/12
Williamson L et al 2007	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes	Yes	Yes	No	10/12
Jubb RW et al 2008	Unclear	Unclear	Yes	Yes	No	Yes	Yes	No	Yes	Yes	Yes	Yes	8/12
Itoh K et al 2008	Unclear	Unclear	Yes	Yes	No	Yes	Yes	Unclear	Yes	Yes	Yes	Yes	8/12
Lu TW et al 2010	Unclear	Yes	Yes	Yes	No	No	Yes	Yes	Yes	Yes	Yes	Yes	9/12
Soni A et al 2012	Yes	Yes	No	No	No	Yes	No	Yes	Yes	Yes	Yes	Yes	8/12
Mavrommatis CI et al 2012	Yes	Yes	Yes	Yes	No	Yes	Yes	Unclear	Yes	Yes	Yes	Yes	10/12