Medical system and nutrition improvement for the rural elderly
Zhenhua Wang1, Jinqi Jiang1, Qiyan Zeng2
1College of Economics and Management, Shenyang Agricultural University, Shenyang, 110866, China.
Background:
Insufficient nutrition intake has negatively influenced the health of the elderly in rural China where the problem of population aging is serious. The present study aims to explore whether the medical system, called the New Rural Cooperative Medical System (NRCMS), can improve the rural elderly's nutrition intake and the mechanism behind it.
Methods:
The difference in differences (DID) model and the propensity score matching-difference in differences (PSM-DID) model are both performed to investigate the impact of the medical system on nutrition improvement for the rural elderly. Two thousand seven hundred eighty rural elderly samples tracked in 2000 and 2006 from the China Health and Nutrition Survey are analyzed. Indices for the elderly's nutrition intake includes daily average intake of energy, fat, protein, and carbohydrate.
Results:
The results show that participation in the NRCMS can significantly increase the rural elderly's total energy intake, carbohydrate intake, and protein intake by 206.688 kcal, 36.379 g, and 6.979 g, respectively. A more significant impact of the NRCMS on nutrition intake is observed in the central and near-western where economic development is lagging behind. Also, compared to people of 18-60 age group, such impact is statistically more significant in the elderly for the carbohydrate intake.
Conclusions:
The NRCMS can improve the rural elderly's nutrition intake in China. As the population ages rapidly in rural China, the present study provides recommendations on how to improve nutrition and health status of the elderly from the aspect of the medical system.
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