Résumé
Objective:To study the relations between the length and costs of hospitalization and the severe ad- verse drug events which took place in the gastroenterologic and pulmonary wards.Method:Pharmacists surveyed ADEs in- cluding their existence and preventability in the wards,and found out the quantity of excessive length and extra costs of hos- pitalization.Result:There were totally 20 identified severe ADEs in which 11 were preventable in the pulmonary wards during 8 months and in the gastroenterologic wards during 5 months.The mean attribute length of stay was 17.8 days and mean attribute extra cost of hospitalization was 16,869 yuan for each ADE.The mean attribute length of stay was 19.3 days and mean attribute extra cost of hospitalization was 12,578 yuan for each preventable ADE.Conclusion:The attribute length of stay and extra costs of hospitalization were substantial.Since many severe ADEs were preventable,the effective measure must be taken to decrease their incidence.