1st author (Year) | Random sequence generation | Allocation concealment | Blinding of participants and personnel | Blinding of outcome assessment | Incomplete outcome data | Selective outcome reporting | Other sources of bias |
---|---|---|---|---|---|---|---|
Acupressure finger | Â | Â | Â | Â | Â | Â | Â |
Dundee 1988 | High | Unclear | High | Low | High | Low | Unclear |
Belluomini 1994 | Low | Unclear | Low | Low | High | High | Low |
Shin2007 | Low | Unclear | Low | Low | Low | Low | Low |
Rad 2012 | Unclear | Unclear | Low | Low | Low | Unclear | Low |
Jiang 2012 | Unclear | Unclear | High | Low | Low | Unclear | unclear |
Acupressure band | Â | Â | Â | Â | Â | Â | Â |
O’Brien 1996 | Low | Low | Low | Low | Low | Unclear | Low |
Norheim 2001 | Low | Unclear | Low | Low | Low | Unclear | Low |
Steele 2001 | Low | Low | Low | Low | Low | Unclear | Low |
Werntoft 2001 | Unclear | Unclear | Unclear | Unclear | Unclear | Low | Unclear |
Heazell 2006 | Unclear | Unclear | Low | Low | Low | Low | Unclear |
Jamigorn 2007 | Low | Low | Low | Low | Low | Unclear | Unclear |
Can Gurkan 2008 | Unclear | Unclear | Low | Low | Low | Unclear | Low |
Saberi 2013 | Low | Unclear | High | Low | Low | Low | Low |
Acupuncture | Â | Â | Â | Â | Â | Â | Â |
Knight 2001 | Low | Low | Low | Low | Low | Low | Low |
Smith 2002 | Low | Low | Low | Low | High | Unclear | Unclear |
Neri 2005 | Low | Unclear | High | Unclear | Low | Unclear | Unclear |
Zhang 2005 | Low | Unclear | High | Low | Low | Low | Low |
Liu 2007 | High | Unclear | High | Low | Low | Low | Unclear |
Wang 2008 | Low | Unclear | High | Low | Low | Low | Unclear |
Mao 2009 | Low | Unclear | High | Low | Low | Low | Low |
Liu 2011 | Low | Unclear | High | Low | Low | High | Unclear |
Ma 2013 | Unclear | Unclear | High | Unclear | Low | High | Unclear |
Auricular acupressure | Â | Â | Â | Â | Â | Â | Â |
Ou 2001 | Low | Unclear | High | Low | Low | Low | Low |
Puangsricharern 2008 | Low | Unclear | High | Low | Low | Low | Unclear |
Li 2010 | High | Unclear | High | Low | Low | Low | Low |
Liu 2012 | Unclear | Unclear | High | Unclear | High | High | Unclear |
Moxa | Â | Â | Â | Â | Â | Â | Â |
Fan 1995 | Unclear | Unclear | High | Unclear | Low | Low | Unclear |
Xu 2009 | Unclear | Unclear | High | Low | Low | Low | Unclear |
Lu 2012 | Unclear | Unclear | High | Low | Low | Unclear | Unclear |