Table 2: Assessment of studies on Physiotherapy Evidence Database (PEDro) critical appraisal scale.

Criteria Sperber et al (2001)13 Fabbriciani et al (2004)14 Bottoni et al (2006)15 Netto NA et al (2012)16 Mohatadi et al (2014)17
Were eligibility criteria clearly specified yes yes yes yes yes
Random allocation of subjects yes yes yes yes yes
Concealment of allocation Yes yes yes yes yes
Similarity in groups regarding baseline characteristics yes yes yes yes yes
Blinding of all subjects no no no no no
Blinding of all clinicians no no no no yes
Blinding of all assessors no no yes no no
Adequate follow up yes yes yes yes yes
Intention to treat analysis no no no no yes
Reporting of statistical results between groups yes yes yes yes yes
Provision of point measure and measures of variability yes yes yes yes yes
Total score 7 8 9 7 9

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