. 2015 Jun 25;9:53–63. doi: 10.4137/CMC.S26230

Table 1.

Risk of bias.

STUDY	ADEQUATE SEQUENCE GENERATION	ALLOCATION CONCEALMENT	BLINDING OF PARTICIPANTS, PERSONNEL, AND OUTCOME ASSESSORS	INCOMPLETE OUTCOME DATA ADDRESSED	FREE OF SELECTIVE OUTCOME REPORTING	FREE OF OTHER SOURCES OF BIAS
Gayda et al. 2012³³	?	?	✓	✓	✓	✓
Meyer et al. 2011³⁴	?	?	✓	✓	✓	✓
Guiraud et al. 2013³⁵	?	?	✓	×	✓	✓
Normandin et al. 2013³⁶	n/a	n/a	✓	✓	✓	✓
Tomczac et al. 2011³⁷	n/a	n/a	✓	✓	✓	✓
Guiraud et al. 2010³⁸	?	?	✓	✓	✓	✓
Guiraud et al. 2011³⁹	?	?	✓	✓	✓	✓
Currie et al. 2012⁴⁰	×	?	✓	✓	✓	✓
Whyte et al.⁴¹	?	?	✓	✓	✓	✓
Gillen et al. 2012⁴²	n/a	n/a	✓	✓	✓	✓
Tjonna et al. 2011⁴³	✓	✓	✓	✓	✓	✓

Notes: ✓ indicates ‘yes’- low risk of bias. ? indicates unclear – not enough information provided in the publication. × indicates ‘no’ – high risk of bias. n/a indicates this assessment was not applicable for this study type.