Prediction of Total Health Costs in China Based on Grey System Theory
Four grey prediction models GM(1,1),FHGM(1,1),DGM(1,1)and OFHGM(1,1)are established based on the total health expenditure and relevant statistics from 2008 to 2020 in China.The average absolute percentage error is used to compare the performance of these models.The results show that OFHGM(1,1)model has the highest simulation accuracy and is more accurate than the other three models.
total health expendituregrey prediction modelFHGM(1,1)background value optimization