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24 May 2021: Meta-Analysis

Relationship of Programmed Death-1 (PD-1) and Programmed Death Ligand-1 (PD-L1) Polymorphisms with Overall Cancer Susceptibility: An Updated Meta-Analysis of 28 Studies with 60 612 Subjects

Wenjing Zhang 12BCDEF , Yuxuan Song 34ABEF* , Xiangcheng Zhang 1ACEG*

DOI: 10.12659/MSM.932146

Med Sci Monit 2021; 27:e932146

Table 2 Quality assessment based on the Newcastle-Ottawa Scale of trials included in this meta-analysis.

ItemsSelectionComparabilityExposureTotal scores
Adequacy of case definitionRepresentativeness of the casesSelection of controlsDefinition of controlsAscertainment of exposureSame method of ascertainmentNon-response rate
Cheng, 2017NANA✰ ✰7
Zhou, 2017NA✰ ✰8
Li, 2016NANA6
Mojtahedi, 2012NANA6
Qiu, 2014NA✰ ✰8
Tang, 2015NANA✰ ✰7
Haghshenas, 2011NANA✰ ✰NA6
Li, 2016NA✰ ✰8
Kasamats, 2019NANANA5
Boas, 2018NANANA5
Wei, 2017NA✰ ✰8
Fathi, 2018NANA6
Xie, 2018NA✰ ✰8
Emma, 2010NANANA4
Bay, 2012NA✰ ✰8
Zhou, 2016NA7
Li, 2016NA✰ ✰8
Haghshenas, 2016NANANANANA3
Namavar, 2017NANA6
Ge, 2015NANA6
Wang, 2013NA7
Chen, 2014NANA6
Tan, 2017NA7
Ren, 2016NANA6
Ma, 2015NA7
Hua, 2011NA7
Tang, 2017NANA6
Fathi, 2019NA7
Zhao, 2018NANANA5

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750