Table 2.

Quality assessment of the randomized controlled trials in the meta-analysis

Ref.	Randomization	Blinding	Concealed allocation	Baseline features	Eligibility criteria	Loss to follow-up	Selecting bias	Study quality
Hulscher et al[12]	Yes	No	Unclear	Yes	Yes	Yes	No	Fair
Omloo et al[14]	Yes	No	Unclear	Yes	Yes	Yes	No	Fair
Sasako et al[15]	Yes	No	Yes	Yes	Yes	Yes	No	Fair