A New Risk Score for Predicting 1-year Mortality in Older r Maintenance Hemodialysis Patients.

Completed

• Conditions: Older Patient; Maintenance Hemodialysis

• Registration Number: NCT05699447
• Lead Sponsor: Beijing Friendship Hospital

Brief Summary

The goal of this retrospective observational cohort study is to analysis the 1-year mortality in older patients undergoing maintenance hemodialysis. The main question it aims to answer is to explore the risk factors affecting the mortality of older patients undergoing maintenance hemodialysis and establish a risk prediction score.

Data of older patients (age ≥65 years old) undergoing maintenance hemodialysis were collected from 2012-1-December 31, 2014, with data from Beijing Blood Purification Quality Control and Improvement Center (BJHDQCIC). Logistic regression model was used to evaluate the 1-year mortality and the influence of predictive factors. Internal validation of the model was performed using the bootstrap 1000 repeat sampling method. Area under receiver operating characteristic curve (AUC) was used to evaluate the predictive ability of the model.

Detailed Description

Not available

Study Timeline

• Study Start: 2022-11-28
• Status Verified: 2023-01
• Primary Completion: 2023-01-10
• Study Completion: 2023-01-16
• Study First Submitted: 2023-01-17
• Study First Submitted QC: 2023-01-25
• Last Update Submitted: 2023-01-25
• Study First Posted: 2023-01-26
• Last Update Posted: 2023-01-26

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 1500

Inclusion Criteria

• Age ≥65 years.
• More than 6-month history of hemodialysis,the frequency is 3 times a week, and the dialysis time is 4 hours each.
• The dialysate Ca concentration was 1.5 mmol/L and the bicarbonate level was 32 -- 35 mmol/L.

Exclusion Criteria

• Lack of demographic information, clinical history, or relevant laboratory values (including pre-dialysis serum calcium, phosphorus, iPTH, haemoglobin, albumin, creatinine, total cholesterol, and Kt/v for urea).

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
the 1-year mortality in older patients undergoing maintenance hemodialysis	Data of older patients (age ≥65 years old) undergoing maintenance hemodialysis were collected from 2012-1-December 31, 2014, with data from Beijing Blood Purification Quality Control and Improvement Center (BJHDQCIC).