[1] Kuwait Univ, Fac Med, Dept Pediat, POB 24923, Safat 13110, Kuwait
[2] Dasman Diabet Inst, Dept Maternal & Child Res, Kuwait, Kuwait
[3] Old Dominion Univ, Coll Hlth Sci, Sch Community & Environm Hlth, Norfolk, VA 23529 USA
[4] Kuwait Univ, Fac Med, Dept Community Med, POB 24923, Safat 13110, Kuwait