6.3% died within 24 hours after hospitalization (47.1% death of reffered chill children), the average treatment time of reffered patients was 8 days, 18.1% died after treatment (50.5% death of reffered chill children), the common diseases in reffered chill patients were perinatal diseases 46.9% (neonatal infection, septicemia, birth asphyxia) respiration diseases 16.5% (pneumonia), congenital diseases 13% (Hirschprung, complex congenital cardiac diseases, diaphragmatic hernia).