Disease Markers

Research Article

Association between Aspartate Aminotransferase-to-Platelet Ratio Index and Hepatocellular Carcinoma Risk in Patients with Chronic Hepatitis: A Meta-Analysis of Cohort Study

Table 2

Methodologic quality of included studies with the NOS.
Study (authors-year)Representativeness of the exposed cohortSelection of the nonexposed cohortAscertainment of exposureDemonstration that outcome of interest was not present at the start of the studyComparability of cohorts on the basis of the design or analysisAssessment of outcomeWas it followed up long enough for outcomes to occur?Adequacy of follow-up of cohortsTotal score
Pretreatment         
 Song BG (2018)★★★—★★★★★8
 Paik N (2018)★★★—★★★★★8
 Chang KC (2018)★★★—★★★★★8
 Kim JH (2018)★★★—★★★★7
 Nishikawa H (2017)★★★—★★★★★8
 Ji FP (2017)★★★——★★★6
 Kim JH (2016)★★★——★★★6
 Lee K (2016)★★★——★★★6
 Wu CK (2016)★★★——★★★6
 Ng KJ (2016)★★★—★★★★7
 Hann HW (2015)★★★—★★★★★8
Posttreatment         
 Ji FP (2017)★★★——★★★6
 Wu CK (2016)★★★—★★★★★8
 Chen TM (non-SVR) (2016)★★★—★★★★★8
 Chen TM (SVR) (2016)★★★—★★★★★8
 Yu ML (2006)★★★—★★★★★8
A study can be awarded a maximum of two stars for comparability of cohorts on the basis of the design or analysis. A maximum of one star can be given for other seven items.