TSLIG1 and tuberculosis: First of all, we use ARIMA method to establish the single ARIMA (1, 1, 2) (1, 1, 1)12 model for predicting the monthly morbidity of TB in Xinjiang, after that, we analyze carefully the residual series based on the ARIMA (1, 1, 2) (1, 1, 1)12 model, the results indicate that a clear ARCH effect exists.