Objective:To investigate the current situation of economic income and quality of life of patients with Kashin-Beck disease (KBD) , and to analyze the impact of different economic levels on quality of life of patients with KBD, and to provide evidence for selection of target and key populations setting of poverty alleviation in KBD area.Methods:The anrual family income and quality of life of adults with KBD in Yongshou County and Linyou County, Shaanxi Province were investigated from May 2017 to May 2019. Patient's quality of life were evaluated using Chinese version of European five-dimensional five-level health scale (EQ-5D-5L) and its utility value conversion system was used to calculate the EQ-index. The ratio of income difference to quality of life difference in different income KBD patients was calculated.Results:A total of 290 patients with KBD participated in the survey. The average annual income of families with KBD was 11 462.41 Yuan of which the average annual income of low (< 5 000 Yuan), medium (5 000 ~ 10 000 Yuan) and high-income (> 10 000 Yuan) groups was 2 663.48, 9 262.75 and 28 397.26 Yuan, respectively. The ratios of income difference to quality of life difference between low-income and medium-income groups (109.99 × 10 4, 94.28 × 10 4, 94.28 × 10 4) were bigger than the ratios of income difference to quality of life difference (55.94 × 10 4, 91.91 × 10 4,-3.20 × 10 3) between low-income and high-income groups in terms of mobility, usual activity, and EQ-index. The ratios of income difference to quality of life difference were negative in terms of self care, anxiety/depression and VAS score (- 131.99 × 10 4,-65.99 × 10 4,-65.99 × 10 3). Conclusions:Patients with KBD have low income level and large income gap. The KBD patients whose annual income less than 10 000 Yuan could be the key population of poverty alleviation, and family income level of more than 10 000 Yuan could be the target of poverty alleviation.

Objective:To evaluate the life quality of patients with Kashin-Beck disease (KBD), and to analyze its influencing factors.Methods:From September 2017 to May 2019, adult KBD patients aged 18 years old and over were selected as the study subjects in the historical serious disease areas (Yongshou County and Linyou County) of KBD in Shaanxi Province. KBD patients were investigated by using the basic information questionnaire and the Chinese version of the European Five-dimensional Five-level Health Scale (EQ-5D-5L), the distribution of health status in the five dimensions of mobility, self-care ability, daily activity, pain/discomfort, and anxiety/depression were described, and each dimension included five levels of no problem, mild problem, moderate problem, severe problem, and extreme problem. EQ index (- 0.391 - 1.000) was used to evaluate the quality of life of patients based on group perspective, the higher EQ index was, the better life quality of the group would be; visual analogue system (VAS) score (0 - 100 points) was used to evaluate the life quality of patients based on individual perspective, the higher VAS score was, the better life quality of the individual would be. At the same time, multiple linear regression analysis was used to analyze the life quality of KBD patients.Results:A total of 245 KBD patients were included, aged (60.37 ± 7.10) years old. The mild problems of self-care ability and anxiety/depression of KBD patients, accounted for the largest proportion, which were 31.8% (78/245) and 27.3% (67/245), respectively; in terms of daily activity, the moderate problem accounted for the largest proportion, which was 32.7% (80/245); in terms of mobility and pain/discomfort, the severe problem accounted for the largest proportion, which were 46.9% (115/245) and 45.7% (112/245), respectively. EQ index [median (quartile range)] was 0.311 (0.059, 0.563), and VAS score was 42.5 (30.0, 60.0) points. After multiple linear regression analysis, the effects of education level, pain level, body deformity inferiority complex, and social participation barrier on EQ index were statistically significant ( P < 0.01); the effects of economic level, pain level, body deformity inferiority complex, and social participation barrier on VAS score were statistically significant ( P < 0.05). Conclusion:The life quality of KBD patients is poor, it is affected by physical, psychological and social aspects, so relevant medical workers should pay attention to the overall health of KBD patients.