background: sleep disorders among heart failure (hf) patients negatively influence the quality of life. awareness of sleep disturbances, as one of the disturbing factors of the quality of life among hf patients, and its related factors would help health care staff to provide more comprehensive care. hence, this study was conducted to determine the quality of sleep and its related factors in hos...

aim and background: schizophrenia is a chronic psychiatric disorder. the positive and negative symptoms are not only important in the prognosis of the disease but also affect the quality of life among the patients. therefore, the present survey aimed to determine the relationship between positive and negative symptoms and quality of life among schizophrenic patients in sina hospital in juneqan....

background health-related quality of life (hrqol) is used as a measure to valuate healthcare interventions and guide policy making. the euroqol eq-5d is a widely used generic preference-based instrument to measure health-related quality of life. objectives the objective of this study was to develop a value set of the eq-5d health states for an iranian population. patients and methods this study...

urban quality of life represents more than the private “living standards” and refers to all the elements of the conditions in which people live, that is, all their needs and requirements. in economic literature, urban quality of life is usually assessed through the standard revealed-preference approach, which defines a qol index as the monetary value of urban amenities. this paper proposes an i...

in this study, the satisfaction index of new product attribute in terms of development strategy, which includes a number of options for development using kano questionnaire, in the automotive industry was calculated, and according to the relationship between satisfaction and loyalty, instead of loyalty index, we was used satisfaction kano index . then using customer purchase records data within...