【Retrospective,and,comparative,analysis,of,the,medevac,patients,and,patients,admitted,in,earthquake,area,in,Wenchuan,earthquake】comparative form

　　Abstract: Objective To investigate the characteristics and disease spectrum of the medevac patients and patients admitted in earthquake area in Wenchuan earthquake, and to provide the theoretical basis for the medical rescue of the military hospitals and health institutions in the future emergencies and major disasters.
　　Methods The clinical information of Wenchuan earthquake inpatients in the three hospitals was searched and collected in “Junwei No 1” hospital information system. The admission times, the basic and clinical information were compared between the medevac patients and patients admitted in earthquake area. In accordance to the ICD-9 coding of the first discharge diagnosis, the disease spectrum of the inpatients was provided.
　　Results In the 2nd day after the earthquake, the hospital in the earthquake area admitted the most patients per day, up to 394. The admissions in the first four days accounted for 80.6% of all hospital admissions in 10 days in the earthquake area. The admission time of the medevac patients was May 20th (the 9th day after the earthquake). There were 730 men, accounting for 56.5%, and 562 females, accounting for 43.5%, in all patients. The proportion of the patients with Han nationality was 95%, and the proportion of the patients with Qiang, Tibetan and other nationality was 5%. The proportion of the married patients was 76.4%. The operation rate was 36.5%. The median of the days in hospital was 12. The cure and improvement rate was 96.5%. The fatality rate was 1%. The proportions of the gender, age group, nationality, surgery or not, and treatment outcomes of the patients were significantly difference between the medevac patients and patients admitted in earthquake area (P <0.05). The median of the days in hospital of the patients admitted in earthquake area was lower than that of the medevac patients (P <0.001). The proportion of the patients with injury and poisoning diagnosis was 81.5% in all patients. Except the injury and poisoning diagnosis, the top five diagnoses were diseases of the digestive system; diseases of the respiratory system; diseases of the musculoskeletal system and connective tissue; diseases of the circulatory system; symptoms, signs, and ill-defined conditions. The top five diagnoses in the injury and poisoning diagnosis were intracranial injury, excluding those with skull fracture; crushing injury; certain traumatic complications and unspecified injuries; open wound of lower limb; internal injury of thorax, abdomen, and pelvis.