Characteristics for prospective studies of body mass index and risk of liver cancer included in a meta-analysis.

Abbreviations: NA, no available; HBV (+)/(−), hepatitis b virus infection positive/negative; HCV (+)/(−), hepatitis c virus infection positive/negative.aP, years means Publication year.bA refers to Asian and W refers to White.cF, years means Follow-up years.dMM means Measure Methods, M refer to measured BMI directly and S refers to self-reported BMI.eCohort studies were conducted in patients with cirrhosis cohort.