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Table 1 The eight questions of the quality score

From: Is the presence of Modic changes associated with the outcomes of different treatments? A systematic critical review

Reporting on drop-out:

1) Drop-out rate reported

2) Drop-out rate accounted for

3) Analysis made, to see if the responders looked like the non-responders

Reporting on validity:

4) Did they attempt to assure or check validity of main outcome measures?

Reporting on MRI evaluation:

5) Reproducibility of evaluation protocol

6) Competent evaluator

7) Standardized protocol used

8) Blinding