Methodological and Statistical Comments on CASPIAN-III Study

Kelishadi and her colleagues have done a great job for determining students’ high risk behaviors (1) and have published part of this study as percentiles of aminotransaminases in Iranian children (2) These data are only from Iran, a country in Middle East and not children of Middle East and North Africa (MENA). Only children between 10 and 18 years are studied and not all children like younger than 10 years. Moreover, only 27 provinces from 31 provinces have been selected and not even all provinces of Iran.