structural equation modeling on health-related quality of life of patients with ankylosing spondylitis

Background: ankylosing spondylitis (as) is a chronic, progressive, and inflammatory disease. the objective of this study was to construct a hypothetical model to determine factors affecting health-related quality of life (hrqol) of as patients (ashrqol). methods: a survey was conducted on 275 patients who visited chonnam national university bitgoeul hospital. data of different variables were collected over two months in 2015. results: a hypothetical model did not reach recommended level of fit verification. therefore, health perception vari-able was eliminated on theoretical basis. path between function and hrqol was added after eliminating unimportant path before completing the final modified model. conclusion: the final revised model met recommended levels of fit test except agfi. the model explained 57.6% of asqol. further study is needed to develop efficient interventional strategy for improving ashrqol.