To our knowledge ,this is the first meta-analysis to evaluate the
association between iAs exposure through drinking water and
liver cancer mortality. In general, individual studies often have a
relatively small number of participants with a lack of power for
detecting the possible true effects ,thus a meta-analysis of many
such studies is anappropriate approach to obtain a more definitive
conclusion. Our meta-analysis ,including 12 studies ,found a strong
association of iAs exposure with increased risk of liver cancer
mortality
mortality