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Table 3 Study quality assessment using the Joanna Briggs Institute Critical Appraisal Checklist for Analytical Cross-Sectional studies

From: Changes of trunk muscle stiffness in individuals with low back pain: a systematic review with meta-analysis

Authors

1

2

3

4

5

6

7

8

Total score

Chan et al. 2012 [43]

1

1

0

1

1

0

1

1

6/8

Masaki et al. 2017 [32]

1

1

1

1

0

0

1

1

6/8

Murillo et al. 2019 [44]

1

1

0

1

0

0

1

1

5/8

Koppenhaver et al. 2020 [31]

1

1

1

1

1

1

1

1

8/8

Pinto et al. 2022 [45]

1

1

0

1

1

1

1

1

7/8

Wu et al. 2019 [33]

1

1

1

1

0

0

1

1

6/8

Ilahi et al. 2020 [30]

1

1

0

0

0

0

1

1

4/8

Alcaraz-Clariana et al. 2021a [46]

1

1

0

1

0

0

1

1

5/8

Alcaraz-Clariana et al. 2021b [47]

1

1

0

1

0

0

1

1

5/8

Inter-rater agreement (Kappa)

1.0

1.0

0.73

1.0

0.77

1.0

1.0

1.0

 
  1. Legend: 1: clearly defined inclusion criteria, 2: detailed subject description, 3: valid and reliable measurement of exposure, 4: objective criteria for measurement of condition, 5: identified confounding factors, 6. strategies to deal with confounding factors, 7. outcomes measured in a valid and reliable way, 8. appropriate statistical analysis use; score 1: Yes, score 0: No