Table 1

Quality assessment of the included studies measured by NOS

Study, yearSelectionComparabilityExposureTotal
Parperis et al, 202120 3227
Yilmaz-Oner et al, 201534 3126
Karol et al, 201329 3126
Nery et al, 200714 3227
Shen et al, 201315 3115
Dietz et al, 202130 3126
Raafat et al, 201521 3115
Khedr et al, 202131 3126
Chalhoub and Luggen, 202228 3227
Xie et al, 201636 3216
Choi et al, 201235 3126
Maneeton et al, 201333 3227
Liao et al, 202232 4228
  • NOS, Newcastle–Ottawa Scale.