Knowledge of caregivers had a negative relationship with age (r = - 0.289, p=0.042), positive relationship with level of education (r = 0.582, p=0.000) and duration of caring (r = 0.533, p=0.000); skills of caregivers were positively correlated to level of education (r = 0.467, p=0.001) and duration of caring (r = 0.370, p=0.008).