Graded associations between breakfast frequency and risk markers were observed ; children who reported not usually having breakfast had higher fasting insulin ( percent difference @ % , @ % CI @ % -@ % ) , insulin resistance ( percent difference @ % , @ % CI @ % -@ % ) , HbA@c ( percent difference @ % , @ % CI @ % -@ % ) , glucose ( percent difference @ % , @ % CI @ % -@ % ) , and urate ( percent difference @ % , @ % CI @ % -@ % ) than those who reported having breakfast daily ; these differences were little affected by adjustment for adiposity , socioeconomic status , and physical activity levels .