0.05). Co n cl u s io n : It h a s b ee n o b se r v e d th a t the P e d QL of s tu d e n ts w i th c hro n ic h e al th p r o bl e ms was n e g a ti v e l y a f f e c t e d a s a re s u l t of   our   w or k . L o wer Q o L   ass o c i a t e d w i th sc hool fu n c ti o n i n g of   a do l e s c e n ts w i th c hr o n ic h e al th p r o b l e ms s ugg e s ts t h e i mp o r t a n c e of sc hoo l - re la t e d f ac to r s ( f r i e n ds, t e ac h er s a n d phy s i ca l s t r u c tu r e ) in t h e i n t er v en ti on o f im p r ovi n g q u al ity of l i f e ."> 0.05). Co n cl u s io n : It h a s b ee n o b se r v e d th a t the P e d QL of s tu d e n ts w i th c hro n ic h e al th p r o bl e ms was n e g a ti v e l y a f f e c t e d a s a re s u l t of   our   w or k . L o wer Q o L   ass o c i a t e d w i th sc hool fu n c ti o n i n g of   a do l e s c e n ts w i th c hr o n ic h e al th p r o b l e ms s ugg e s ts t h e i mp o r t a n c e of sc hoo l - re la t e d f ac to r s ( f r i e n ds, t e ac h er s a n d phy s i ca l s t r u c tu r e ) in t h e i n t er v en ti on o f im p r ovi n g q u al ity of l i f e ." > Quality of Life and Self-Efficacy of Adolescents with Chronic Health Conditions