“…In Colombia, the mean age of children was 19.3±15.3 months (11) . In Korea, the mean age was 54.5±15.1 months (15) .In another study that was carried out in Korea, the mean age was 60.5±41.8 months (14) while in Iran the mean age was 5±3.12 years (17) . It has been documented that in general population, nearly 75% of those who experienced functional constipation were between the ages 5-10 years.…”