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Table 2 Quality assessment of the 15 articles included in the systematic review on changes in soft tissues after rapid maxillary expansion

From: Facial soft tissue changes after nonsurgical rapid maxillary expansion: a systematic review and meta-analysis

Quality Assessment Criteria(Point)

1

2

3

4

5

6

7

8

9

10

11

12

13

14a

15a

Age and gender distribution described(1)

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Clinical features fully defined(1)

1

1

1

1

1

1

1

1

1

1

0

1

1

1

1

Sample size: adequate(1)

1

1

1

1

1

1

1

1

1

1

1

1

1

0

1

Presence of a blank control(1)

1

0

1

0

0

1

0

1

0

0

1

0

0

0

0

Prospective(1)

0

1

1

0

1

1

1

1

1

1

1

1

1

1

1

Randomization(1)

0

1

1

0

1

0

0

0

1

0

0

0

0

0

0

Appliances described(1)

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Interventions fully described(1)

1

1

1

1

1

1

1

0

0

1

1

1

1

1

1

Follow-up defined(1)

0

1

1

1

1

1

0

1

1

1

1

1

0

0

0

Measurement method: appropriate(1)

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Assessor blinding(1)

1

0

1

0

0

0

1

0

1

0

1

0

0

0

0

Reliability testing(1)

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

No dropouts or explained(1)

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Statistical analysis: appropriate(1)

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Confounders analysed(1)

1

0

1

0

1

1

1

1

1

1

1

1

1

1

1

Results reported: adequate(1)

1

1

1

1

1

1

1

1

1

1

1

1

1

0

0

Reasonable conclusion(1)

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Total

14

14

17

12

15

15

14

14

15

14

15

14

13

11

12

  1. aarticles included in the systematic review but not in the meta-analysis. The number of articles is the same as that in Table 3