Based on the types of rehabilitation diseases, the number of rehabilitation patients and the number of rehabilitation beds in the region are calculated by using the geographic information system (GIS) software, and according to the requirements of the space range of rehabilitation beds, to determine the spatial distribution of the rehabilitation bed demand, combining with the current supply of the rehabilitation bed in the region, analyze the matching of the spatial distribution of the rehabilitation bed.

1. Methods of determining inpatient rehabilitation diseases

The number of convalescent patients is measured primarily on the basis of the patient composition of inpatient rehabilitation in the United States. The development of inpatient rehabilitation treatment in the United States is relatively sound. The inpatient rehabilitation diseases are mainly neurological diseases and orthopaedics. Among the inpatient rehabilitation patients in the United States in 2011, stroke, brain injury, peripheral nerve and spinal cord injury, orthopedic diseases accounted for more than 90% . Based on the types of inpatient rehabilitation diseases in the United States, the results of expert interviews and the actual incidence of diseases in China, the main diseases requiring inpatient rehabilitation services are determined, these include stroke, brain injury, peripheral nerve and spinal cord injury, fractures, arthropathy (after joint replacement) , and coronary heart disease.

2. Calculation method of the number of convalescent patients

The target patients of the rehabilitation beds are the patients suffering from acute and severe diseases, whose condition is relatively stable after treatment, but still need rehabilitation services. There is a complementary relationship between therapeutic services and rehabilitation services: on the one hand, rehabilitation services are the follow-up to therapeutic services, although the patient’s condition is alleviated during pre-treatment, however, the body damage of the patients in the early stage often results in the dysfunction of the body, and long-term and gradual rehabilitation treatment is needed to improve the function of the body and the quality of life of the patients, convalescent patients are also at risk of recurrent attacks, which often require treatment at medical institutions that provide therapeutic services. This complementary relationship determines that the patients of rehabilitation services mainly come from the acute and severe patients in therapeutic medical institutions. Therefore, patients in need of rehabilitation services refer to the total number of critically ill patients whose outcomes have improved after treatment in various therapeutic medical institutions, they include patients with stroke, head injury, peripheral nerve and spinal cord injury, fractures, arthropathy (after joint replacement) , and coronary heart disease.

3. Calculation method of the number of rehabilitation beds

The demand for convalescent beds depends on the number of convalescent patients and the average length of stay. Therefore, the formula for calculating the demand for rehabilitation beds is as follows:

Y= S(QxALOS, / 365)。

Y = s (QxALOS,/365).

Y refers to the demand for convalescent beds; Q. I = 1 ~ 6 means stroke, craniocerebral injury, peripheral nerve and spinal cord injury, fracture, joint disease (after joint replacement) and coronary heart disease; Alos means the average length of stay for Disease I.

4. Estimation of spatial distribution of rehabilitation bed demand

The principle of setting up a rehabilitation institution is that it should be close enough to an emergency education institution. The greater the distance between the two, the more likely it is that the convalescent will be cured of a sudden illness. Therefore, the reasonable distance between the rehabilitation institution and the treatment hospital is 3 km. Based on this, the area of 3km around each therapeutic hospital is taken as the space distribution of the demand for rehabilitation beds in the hospital. In other words, the demand for convalescent beds within the 3 km range is equal to the demand for convalescent beds in the internal treatment hospital.