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Table 4 Quality assessment of cohort studies based on the JBI critical appraisal checklist

From: Association of Helicobacter pylori infection with the risk of metabolic syndrome and insulin resistance: an updated systematic review and meta-analysis

Studies

Q1

Q2

Q3

Q4

Q5

Q6

Q7

Q8

Q9

Q10

Q11

Total Score

Jeon et al (2012) [40]

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

10

Shin et al (2012) [71]

Y

Y

Y

Y

Y

Y

Y

Y

UC

UC

Y

9

Hsieh et al (2013) [72]

Y

Y

Y

Y

Y

Y

Y

N

Y

UC

Y

9

Sayilar et al (2015) [73]

Y

Y

Y

Y

Y

Y

Y

Y

N

N

Y

9

Q1: Were the two groups similar and recruited from the same population?

Q2: Were the exposures measured similarly to assign people to both exposed and unexposed groups?

Q3: Was the exposure measured in a valid and reliable way?

Q4: Were confounding factors identified?

Q5: Were strategies to deal with confounding factors stated?

Q6: Were the groups/participants free of the outcome at the start of the study (or at the moment of exposure)?

Q7: Were the outcomes measured in a valid and reliable way?

Q8: Was the follow up time reported and sufficient to be long enough for outcomes to occur?

Q9: Was follow up complete, and if not, were the reasons to loss to follow up described and explored?

Q10: Were strategies to address incomplete follow up utilized?

Q11: Was appropriate statistical analysis used?

  1. Y: Yes; N: No; UC: Unclear; NP: Not applicable