CMI index refers to case-mix index, which is internationally recognized as an important indicator representing the technical difficulty of hospitals in treating diseases as well as the comprehensive ability to admit and treat difficult and serious cases, and also an important parameter for measuring the overall quality of healthcare institutions.
It reflects the overall characteristics of cases admitted to hospitals, including morbidity, mortality, cure rate, improvement rate, etc. The higher the CMI index, the higher the overall level of the hospital, and the higher the difficulty and complexity of treating diseases. In medical practice, the level of CMI index is often closely related to the quality of medical care and treatment effects. The higher the CMI index of a hospital, the more difficult and serious cases it can treat and the better the treatment results.
In addition, the CMI index can be used to assess the efficiency and management level of a hospital, as well as to predict its business volume and income level. In conclusion, CMI index has an important application value in the medical field, which can help hospitals and medical organizations to improve the overall level and treatment effect, and can also be used to assess the working efficiency and management level of hospitals. This index is of great significance to the resource allocation of medical organizations and medical insurance reimbursement.
CMI is at the pivotal position of all the indicators, and is associated with both service capacity dimension indicators and service efficiency indicators, but is more closely linked to efficiency dimension indicators such as Time Consumption Index and Expense Consumption Index (the thicker the connecting line, and the larger the absolute value of the value on the line, the stronger the linkage is indicated), and relatively weakly linked to indicators reflecting the service capacity (the number of DRG groups, the number of cases enrolled, and the total weights, etc.); The medical safety indicator, mortality rate in low-risk groups, fails to show up in the structural equation modeling because it is not significantly linked to any of the other DRG indicators?
Application of CMI in hospital management
I. Direct application: CMI is closely related to the average hospitalization cost, and can be used for:
1. Accurate measurement of health insurance prepayment. The health insurance department can use the CMI and average hospitalization cost data of a city/region hospital to establish the best curve model to predict the average hospitalization cost of each hospital, and then combine with the expected business volume of each hospital to more accurately measure the amount of health insurance prepayment of each hospital.
2. Hospital refinement management. Hospitals can incorporate CMI into the average hospitalization cost prediction model to compare the difference between actual and predicted costs for each department, ward, DRG group, and physician to assess whether the actual costs are out of the controllable range and to provide a basis for intervention. In addition, CMI can be combined with other DRG indicators to comprehensively assess departmental performance levels.
II. Indirect application:?The indirect application of CMI in hospital management mainly lies in the adjusting/correcting role of management indicators. There are also studies using CMI to adjust the incidence of hospital infections and the allocation of specialized bed resources. In summary, CMI is an important indicator of the DRG index system, which is in the pivotal position of the system, mainly reflecting the intensity and complexity of resource consumption in hospitals and departments, and to a certain extent, reflecting the degree of difficulty and complexity of the admitted diseases and the overall technical difficulty of medical services.