Table 2.

Articles included in review.

Reference	Margin	Reasoning	Test
Agha et al, 2009 [1]	0.15 SD	Guided by Cohen	Noninferiority
Chenkin et al, 2008 [2]	10% from mean	Clinically + prior studies	Difference
de Vries et al, 2010 [3]	Cohen’s d = 0.2	Defined	Noninferiority
Harper & Pollock, 2011 [4]	Unclear: a) Within 5%, b) Lower bound 95% CI	No reason given	Difference
Hedman et al, 2011 [5]	Absolute value + Cohen’s d = 0.5	Clinically + prior studies	Noninferiority
Merchant et al, 2009 [6]	10% from mean	Typical in medical trials	Noninferiority
Morland et al, 2011 [7]	Not set	Not relevant	Difference
Morland et al, 2010 [8]	Absolute value	Clinically	Noninferiority
Morland et al, 2009 [9]	Absolute value	Clinically + prior studies	Noninferiority
Mpotos et al, 2011 [10]	10 percentage points difference in proportions	No reason given	Noninferiority
Munger et al, 2008 [11]	RR=0.95	No reason given	Noninferiority
Péres-Ferre et al, 2010 [12]	Not set	No reason given	Difference
Robinson et al, 2010 [13]	Not set	Not relevant	Difference
Russell et al, 2011 [14]	Absolute value	Clinically	Noninferiority
Titov et al, 2010 [15]	Not set	Not relevant	Difference
Weeks & Molsberry, 2008 [16]	Lower bound 90% CI	No reason given	Difference