RESUMO
Objective To set up forecasting models of week and ten days for chronic tracheitis.Methods The data of chronic tracheitis incidence and same time meteorological factors in 1998-2000 in Yinchuan,China were collected and analyzed using SAS6.0 statistical software.Results The incidence of chronic tracheitis was closely related with air temperature,air pressure and the other meteorological factors which showed that chronic tracheitis was caused integrated meteorological factors.Based on the correlation analysis,forecasting models of week and ten days for chronic tracheitis using multi-regression method was established.Conclusion Chronic tracheitis may be caused by integrated meteorological factors and the incidence of chronic tracheitis has a positive correlation with air temperature and a negative correlation with air pressure.