Chinese Herbal Medicine for Acute Mountain Sickness: A Systematic Review of Randomized Controlled Trials

Table 3

Quality assessment of included randomized controlled trials.

Included trials	Random sequence generation	Allocation concealment	Blinding of participants and personnel	Blinding of outcome assessment	Incomplete outcome data	Selective reporting	Other sources of bias
Chen et al., 2006 [29]	Unclear	Unclear	Yes	Unclear	No	No	Unclear
Song et al., 2011 [30]	Unclear	Unclear	Unclear	Unclear	No	No	Unclear
Tang et al., 2013 [31]	Unclear	Unclear	Unclear	Unclear	No	No	Unclear
Niu et al., 2006 [32]	Unclear	Unclear	Unclear	Unclear	Unclear	No	Unclear
Li et al., 2008 [33]	Unclear	Unclear	Unclear	Unclear	No	No	Unclear
Zhang et al., 2003 [34]	Unclear	Unclear	Unclear	Unclear	No	No	Unclear
Zhang et al., 2010 [35]	Table of random numbers	Unclear	No	Unclear	No	No	Unclear
Fang, 2008 [36]	Unclear	Unclear	Unclear	Unclear	No	No	Unclear
Fang, 2011 [37]	Unclear	Unclear	Unclear	Unclear	No	No	Unclear