International Journal of Preventive Medicine (Int J Prev Med)2008-78021052019052920502050ENDepartment of Nursing, Faculty of Nursing and Midwifery, Qazvin University of Medical Sciences, QazvinDepartment of Midwifery, Faculty of Nursing and Midwifery, Qazvin University of Medical Sciences, QazvinStudent Research Center, School of Nursing and Midwifery, Isfahan University of Medical Sciences, IsfahanDepartment of Biostatistics, Faculty of medicine, Qazvin University of Medical Sciences, QazvinDepartment of Nursing, Faculty of Nursing and Midwifery, Qazvin University of Medical Sciences, Qazvin20190526<p><span class="fontstyle0"><strong>Background</strong>: </span><span class="fontstyle2">Quality of life (QoL) is an important tool for evaluating the effect of a disease as well as effects of treatment interventions. The present study is aimed to investigate QoL of the patients with various prevalent chronic diseases in Iran. </span></p><p><span class="fontstyle0"><strong>Methods</strong>: </span><span class="fontstyle2">In a cross‑sectional study, 625 patients with one of the prevalent chronic diseases were assessed. Participants were recruited via convenient sampling method in special clinics of chronic diseases in three educational hospitals in Qazvin, Iran, from May to December 2016. Data were collected using WHOQOL‑BREF and demographic questionnaire through interview. Data were analyzed using independent </span><span class="fontstyle3">t</span><span class="fontstyle2">‑test, ANOVA, Pearson’s correlation coeffcient, and multiple linear regression method. </span></p><p><span class="fontstyle0"><strong>Results</strong>: </span><span class="fontstyle2">Signifcant difference in QoL scores was found in different chronic disease; patients with diabetes and hypertension had higher scores and patients with asthma and chronic obstructive pulmonary disease (COPD) had the lowest scores. Multivariate analysis showed that age, economic status, and type of disease were among the signifcant variables in predicting the QoL of the patients with chronic diseases. </span></p><p><span class="fontstyle0"><strong>Conclusions</strong>: </span><span class="fontstyle2">Some patients, such as those with asthma and COPD, had less QoL than other patients and should be prioritized while planning for the promotion of healthcare services. Due to the negative effects of economic status on QoL, the fnancial support programs should be among the major priorities of the patients’ QoL improvement programs.<br /></span></p><p><span class="fontstyle0" style="color: #00652e;"><strong>Keywords</strong>: </span><span class="fontstyle3">Asthma, chronic obstructive, diabetes mellitus, hypertension, multiple sclerosis, neoplasms, peptic ulcer, pulmonary disease, quality of life</span></p>http://ijpm.mui.ac.ir/index.php/ijpm/article/view/2050http://ijpm.mui.ac.ir/index.php/ijpm/article/download/2050/717717868