Analysis of Influencing Factors and Construction of Prediction Models of Artificial Joint Replacement in China

Study Overview
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Brief Summary
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The project intends to analyze the epidemiological characteristics, risk factors, complications and resource utilization of artificial joint replacement in China through the inpatient data collected by the Hospital Quality Monitoring System (HQMS). The HQMS database is a mandatory electronic inpatient database system developed by the National Health Commission of the People's Republic of China. Since 2013, tertiary hospitals have been required to upload their inpatient discharge records. By 2019, the HQMS database has included more than 230 million standardized inpatient discharge records of over 1000 hospitals across all 31 provincial-level administrative regions in mainland China. Patient demographics, clinical diagnosis, procedures and operations, drug use, costs and complications were all recorded in the HQMS database. The investigators planned to include five types of arthroplasty, including knee arthroplasty, hip arthroplasty, shoulder arthroplasty, ankle arthroplasty and elbow arthroplasty. The data analysis will be conformed to the principle of confidentiality and will not reveal the privacy of those patients. The data will be only used for this research project and there is no conflict of interest. It is in line with the principles of ethics, harmlessness and fairness. This study was authorized by the HQMS Committee Board and approved by the institutional review board, with waiver of informed consent.

Official Title
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Analysis of Influencing Factors and Construction of Prediction Models of Artificial Joint Replacement in China

Conditions
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Knee Arthropathy, Hip Arthropathy, Shoulder Arthropathy, Ankle Arthropathy, Elbow Arthropathy

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients who underwent knee, hip, shoulder, ankle and elbow arthroplasty in HQMS Exclusion Criteria: Patients who didn't undergo knee, hip, shoulder, ankle and elbow arthroplasty Patients with missing demographics or medical data
Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| patients undergoing knee arthroplasty in Hospital Quality Monitoring System in China<br>Patients who underwent knee arthroplasty and was recorded in HQMS were included in this group | |
| patients undergoing hip arthroplasty in Hospital Quality Monitoring System in China<br>Patients who underwent hip arthroplasty and was recorded in HQMS were included in this group | |
| patients undergoing shoulder arthroplasty in Hospital Quality Monitoring System in China<br>Patients who underwent shoulder arthroplasty and was recorded in HQMS were included in this group | |
| patients undergoing ankle arthroplasty in Hospital Quality Monitoring System in China<br>Patients who underwent ankle arthroplasty and was recorded in HQMS were included in this group | |
| patients undergoing elbow arthroplasty in Hospital Quality Monitoring System in China<br>Patients who underwent elbow arthroplasty and was recorded in HQMS were included in this group | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Epidemiological characteristics, complications, risk factors and resource utilization of knee arthroplasty in China | The project intends to analyze the epidemiological characteristics, complications, risk factors and resource utilization of artificial knee joint replacement in China through the inpatient data collected by the Hospital Quality Monitoring System (HQMS). The information collected by HQMS includes demographics characteristics, hospitalization information, medical care cost, complications, et al. | 10 years (2013-2022) | 
| Epidemiological characteristics, complications, risk factors and resource utilization of hip arthroplasty in China | The project intends to analyze the epidemiological characteristics, complications, risk factors and resource utilization of artificial hip joint replacement in China through the inpatient data collected by the Hospital Quality Monitoring System (HQMS). The information collected by HQMS includes demographics characteristics, hospitalization information, medical care cost, complications, et al. | 10 years (2013-2022) | 
| Epidemiological characteristics, complications, risk factors and resource utilization of shoulder arthroplasty in China | The project intends to analyze the epidemiological characteristics, complications, risk factors and resource utilization of artificial shoulder joint replacement in China through the inpatient data collected by the Hospital Quality Monitoring System (HQMS). The information collected by HQMS includes demographics characteristics, hospitalization information, medical care cost, complications, et al. | 10 years (2013-2022) | 
| Epidemiological characteristics, complications, risk factors and resource utilization of ankle arthroplasty in China | The project intends to analyze the epidemiological characteristics, complications, risk factors and resource utilization of artificial ankle joint replacement in China through the inpatient data collected by the Hospital Quality Monitoring System (HQMS). The information collected by HQMS includes demographics characteristics, hospitalization information, medical care cost, complications, et al. | 10 years (2013-2022) | 
| Epidemiological characteristics, complications, risk factors and resource utilization of elbow arthroplasty in China | The project intends to analyze the epidemiological characteristics, complications, risk factors and resource utilization of artificial elbow joint replacement in China through the inpatient data collected by the Hospital Quality Monitoring System (HQMS). The information collected by HQMS includes demographics characteristics, hospitalization information, medical care cost, complications, et al. | 10 years (2013-2022) |