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[A comparative study on medical expenditure for diabetes mellitus and non-diabetes mellitus in 9 provinces of China, between 2000 and 2009].

OBJECTIVE
To compare the medical expenditure and its trend for diabetes mellitus and non-diabetes mellitus and to assess the direct economic burden of diabetes for individuals and families.


METHODS
Using data from the China Health and Nutrition Survey(CHNS), propensity scores matching(PSM)was used to match diabetes mellitus and non-diabetes mellitus according to the related characteristic variables. Data from 679 pairs of objects was then compared.


RESULTS
From 2000 to 2009, gaps of annual medical expenditure from diabetes mellitus and non-diabetes mellitus showed an increase, from 3361.93 to 6608.48 Yuan, with the ratios of medical expenditure about 4 times. The ratios of personal economic burden and family economic burden had an increase of about 4-5 times.


CONCLUSION
Compared with non-diabetes mellitus, the annual medical expenses was significantly higher among patients with diabetes mellitus. The absolute cost appeared a dramatic increase, along with the personal and familiar economic burden.