Xianyin Li

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BACKGROUND Suicide rates in rural China are two-fold to three-fold those in urban China but the reasons for this large difference remain unclear. AIM Assess the characteristics and risk factors of medically serious suicide attempts in rural China. METHODS A comprehensive 2 to 3 hour structured interview was administered by psychiatrists to 297 medically(More)
Influenced by a number of uncertain factors, Unemployment rate of college graduates has characteristics of stochastic nature and fluctuations. Single gray GM (1,1)model could not fit these data better, and its forecasting accuracy is lower. However, Markov forecast can make up for this deficiency. Drawing on the virtue of gray model and Markov forecasting(More)
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