The annual contribution limit is currently $ 18,000, with an extra $ 6,000 allowed as a catch - up contribution every year for participants age 50 or older. (nerdwallet.com)
Studies will be included if they report results of participants aged 5 — 18 years. (bmjopen.bmj.com)
Participants aged between 16 to 21 were part of the said study group. (parentherald.com)