“…Regarding to the relation between caregivers` knowledge, burnout and their demographic characteristics of studied, the results of the present study revealed that, there were a statistically significant relation between caregivers` total knowledge scores and their age, gender, level of education, marital status, occupation, place of residence, monthly income and number of family members. These results agreed with study performed by Manzoor & zakar [25], whose conduct study in Lahore (study sample equal 186 parents) and entitled as "Sociodemographic determinants associated with parental knowledge of screening services for thalassemia major in Lahore" who stated that, there were statistically significant relation between parents total knowledge and their gender, level of education, marital status, occupation and monthly income. Also, these results disagreed with study Performed by Williams [26], whose conduct study at mysore (study sample equal 60 caregivers) and entitled as "A study was to assess the knowledge of caregivers regarding thalassemia in selected hospital at mysore with a view to develop information booklet" who found that, there were no significant relation between total knowledge scores and their age, gender, level of education, marital status, occupation and monthly income.…”