类风湿关节炎患者发生骨质疏松的危险因素分析及风险预测模型建立
Analysis of risk factors and establishment of a risk prediction model for osteoporosis in rheumatoid arthritis patients
徐蕊 1石燕楠 1周喆 2达展云1
作者信息
- 1. 南通大学附属医院风湿免疫科,江苏 226001
- 2. 苏州市第九人民医院风湿免疫科
- 折叠
摘要
目的:研究类风湿关节炎(rheumatoid arthritis,RA)患者发生骨质疏松的危险因素,并建立列线图预测模型.方法:共纳入 283 例RA患者,以 8∶2 的比例随机分成建模组(n=226)和验证组(n=57),分析RA患者发生骨质疏松的危险因素,建立预测模型.采用Bootstrap法对模型进行内部验证,验证组进行外部验证.利用ROC曲线的AUC和校准曲线对预测模型进行评价.结果:性别(P=0.046)、年龄(P=0.016)、病程(P=0.004)、红细胞沉降率(erythrocyte sedimentation rate,ESR)(P<0.001)和钙离子(calcium ion,Ca2+)浓度(P=0.004)是RA患者发生骨质疏松的独立危险因素(P<0.05).根据以上危险因素,建立预测RA患者发生骨质疏松的列线图模型.校准曲线提示,建模组和验证组的预测值与实测值基本相符.建模组AUC为 0.83,95%CI:0.78～0.88,验证组AUC为 0.86,95%CI:0.78～0.88,表明此模型具有较好的预测效果.结论:以年龄、性别、病程、ESR及Ca2+为预测因子构建的列线图模型可有效预测RA患者发生骨质疏松的概率.
Abstract
Objective:To investigate the risk factors for osteoporosis in rheumatoid arthritis(RA)patients and establish a alignment diagram prediction model.Methods:A total of 283 RA patients were included,and they were randomly divided into a modeling group(n=226)and a validation group(n=57)in an 8∶2 ratio.Independent risk factors for osteoporosis in RA patients were analyzed,and a alignment diagram prediction model was established.The model was internally validated using Bootstrap,and external validation was performed on the validation group.The prediction model was evaluated using the ROC curve AUC and calibration curve.Results:Gender(P=0.046),age(P=0.016),disease duration(P=0.004),erythrocyte sedimentation rate(ESR)(P<0.001),and calcium ion(Ca2+)concentration(P=0.004)were independent risk factors for osteoporosis in RA patients(P<0.05).Based on these risk factors,a alignment diagram prediction model for RA-related osteoporosis was established.The calibration curve indicated that the predicted values in both the modeling and validation groups were in good agreement with the observed values.The AUC for the modeling group was 0.83 with 95%CI of 0.78-0.88,and for the validation group,it was 0.86(95%CI:0.78-0.88),demonstrating that the model had a good predictive performance.Conclusion:The alignment diagram prediction model based on age,gender,disease duration,ESR,and Ca2+effectively predicts the probability of osteoporosis in RA patients.
关键词
类风湿关节炎/骨质疏松症/危险因素/预测模型Key words
rheumatoid arthritis/osteoporosis/risk factors/prediction model引用本文复制引用
出版年
2024
NETL
NSTL
万方数据