Article(id=1322931608436748323, tenantId=1146029695717560320, journalId=1220038315760373764, issueId=1322931549481599694, articleNumber=null, orderNo=null, doi=10.12102/j.issn.1009-6493.2026.12.001, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1758211200000, receivedDateStr=2025-09-19, revisedDate=1779638400000, revisedDateStr=2026-05-25, acceptedDate=null, acceptedDateStr=null, onlineDate=1793341074331, onlineDateStr=2026-10-30, pubDate=1782316800000, pubDateStr=2026-06-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793341074331, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793341074331, creator=13701087609, updateTime=1793341074331, updator=13701087609, issue=Issue{id=1322931549481599694, tenantId=1146029695717560320, journalId=1220038315760373764, year='2026', volume='40', issue='12', pageStart='2001', pageEnd='2192', issueExtLink='null', onlineDate='null', pubDate='1782316800000', pubDateStr='2026-06-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793341060276, creator='13701087609', updateTime=1793343118019, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322940180335829530, tenantId=1146029695717560320, journalId=1220038315760373764, issueId=1322931549481599694, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322940180335829531, tenantId=1146029695717560320, journalId=1220038315760373764, issueId=1322931549481599694, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=2001, endPage=2012, ext={EN=ArticleExt(id=1322931608612909092, articleId=1322931608436748323, tenantId=1146029695717560320, journalId=1220038315760373764, language=EN, title=Construction and evaluation of a frailty risk prediction model based on machine learning algorithms for the rural elderly, columnId=1220689484526572183, journalTitle=Chinese Nursing Research, columnName=Original Articles, runingTitle=null, highlight=null, articleAbstract=
Objective To investigate the influencing factors of frailty among rural elderly people,and to construct,verify and compare frailty risk prediction models based on multiple machine learning algorithms,so as to provide a scientific basis for the early identification and precise prevention of frailty.
Methods From July to September 2023,using a multi-stage stratified cluster random sampling strategy,a total of 1 366 elderly people from 13 rural areas were selected as the research subjects.They were randomly divided into the training set(n=957) and the internal validation set(n=409) at a ratio of 7∶3.In July 2024,a total of 491 rural elderly people were selected as the external validation set.In this study,whether frailty occurs was used as the dependent variable.Variable selection was completed through single-factor analysis and LASSO regression.Then five machine learning methods including random forest(RF),extreme gradient boosting algorithm(XGBoost),artificial neural network(ANN),support vector machine(SVM),and Logistic regression(LR) were used to construct the prediction model.The core evaluation indicators were sensitivity,specificity,area under the receiver operating characteristic curve,and classification accuracy rate.The clinical practicality of the model was evaluated by the decision curve analysis.The performance of each frailty risk prediction model was comprehensively evaluated to determine the optimal model.
Results The incidence rate of frailty among rural elderly people was 27.4%.LASSO regression ultimately included sleep quality,depression status,anxiety status,fall risk and physical condition as key predictors.After internal and external verification and comprehensive evaluation by multiple indicators,the XGBoost model performed the best.
Conclusions The incidence of frailty among rural elderly people is relatively high.There are numerous influencing factors.The frailty risk prediction model based on XGBoost algorithm has the best performance.It could provide a scientific and effective tool for frailty risk screening and precise intervention.It has high clinical application value.
, authors=Shan YU
1, 2, Yajie CHE
2, 3, SUBIYINVER·Maimaiti
2, Mengyao WANG
2, Yihui TONG
2, Ping YAN
2, 3, authorsList=Shan YU, Yajie CHE, SUBIYINVER·Maimaiti, Mengyao WANG, Yihui TONG, Ping YAN, authorCompany=null, correspAuthors=Ping YAN, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1322931610374516791, articleId=1322931608436748323, tenantId=1146029695717560320, journalId=1220038315760373764, language=CN, title=基于机器学习算法的农村老年人衰弱风险预测模型的构建与评价, columnId=1220689484681761433, journalTitle=护理研究, columnName=科研论著, runingTitle=null, highlight=null, articleAbstract=
目的 调查农村老年人发生衰弱的影响因素,并基于多种机器学习算法构建、验证与比较衰弱风险预测模型,为早期识别与精准预防衰弱提供科学依据。
方法 于2023年7月—9月,采用多阶段分层整群随机抽样策略,选取13个农村的1 366名老年人作为研究对象,按7∶3比例随机分为训练集957人和内部验证集409人;于2024年7月选取491名农村老年人作为外部验证集。以是否发生衰弱为因变量,通过单因素分析与LASSO回归完成变量筛选,进而运用随机森林、极限梯度提升算法、人工神经网络、支持向量机及Logistic回归分析5种机器学习方法构建预测模型。以灵敏度、特异度、受试者工作特征曲线下面积、分类准确率为核心评价指标,采用临床决策曲线评估模型的临床实用性,综合研判各衰弱风险预测模型性能,确定最优模型。
结果 农村老年人衰弱发生率为27.4%。LASSO回归纳入睡眠质量、抑郁状况、焦虑状况、跌倒风险及躯体能力作为关键预测因子。经内部与外部验证及多指标综合评价,极限梯度提升算法模型表现最优。
结论 农村老年人衰弱发生率较高,影响因素较多。基于极限梯度提升算法构建的衰弱风险预测模型具有最佳性能,可为衰弱风险筛查及精准干预提供科学有效的工具,具备较高的临床应用价值。
, authors=于珊
1, 2, 车雅洁
2, 3, 苏比伊努尔·麦麦提
2, 王梦瑶
2, 仝逸辉
2, 颜萍
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1新疆医科大学第五附属医院,新疆 830011)]), AuthorCompany(id=1322931612769464380, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, xref=2, ext=[AuthorCompanyExt(id=1322931612777852989, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, companyId=1322931612769464380, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3新疆区域人群疾病与健康照护研究中心)])], figs=[ArticleFig(id=1322931616703721581, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, language=EN, label=Figure 1, caption=
LASSO regression coefficient path diagram, figureFileSmall=tifHS36aOs7q0WOo5nvK+A==, figureFileBig=vuDojpnwXXQfBeOTrnvYVw==, tableContent=null), ArticleFig(id=1322931616787607662, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, language=CN, label=图1, caption=
LASSO回归系数路径图, figureFileSmall=tifHS36aOs7q0WOo5nvK+A==, figureFileBig=vuDojpnwXXQfBeOTrnvYVw==, tableContent=null), ArticleFig(id=1322931617005711471, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, language=EN, label=Figure 2, caption=
Binomial bias plot of LASSO regression, figureFileSmall=6bKI9xctP0v4JsTwtCDv2g==, figureFileBig=qKiras8gDqfQikhGtHJMlQ==, tableContent=null), ArticleFig(id=1322931617089597552, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, language=CN, label=图2, caption=
LASSO回归的二项偏差图, figureFileSmall=6bKI9xctP0v4JsTwtCDv2g==, figureFileBig=qKiras8gDqfQikhGtHJMlQ==, tableContent=null), ArticleFig(id=1322931617165095025, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, language=EN, label=Figure 3, caption=
ROC curves of the training set and internal validation set for each model, figureFileSmall=jWn5Pss2AtBNFyp+ZWldhg==, figureFileBig=PAvDj2ZHkpPoAtOzn0aAqQ==, tableContent=null), ArticleFig(id=1322931617244786802, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, language=CN, label=图3, caption=
各模型训练集和内部验证集的ROC曲线(A为训练集;B为内部验证集)
, figureFileSmall=jWn5Pss2AtBNFyp+ZWldhg==, figureFileBig=PAvDj2ZHkpPoAtOzn0aAqQ==, tableContent=null), ArticleFig(id=1322931617349644403, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, language=EN, label=Figure 4, caption=
PR curves of the training set and internal validation set for each model, figureFileSmall=DJfFCyWK9zKPc0qdsn+1Eg==, figureFileBig=Yo8CU8taF28kRh6VpfV10A==, tableContent=null), ArticleFig(id=1322931617467084916, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, language=CN, label=图4, caption=
各模型训练集和内部验证集的PR曲线(A为训练集;B为内部验证集)
, figureFileSmall=DJfFCyWK9zKPc0qdsn+1Eg==, figureFileBig=Yo8CU8taF28kRh6VpfV10A==, tableContent=null), ArticleFig(id=1322931617555165301, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, language=EN, label=Figure 5, caption=
Importance of variables of the training set in each model, figureFileSmall=R9zOajFFEirCsNkY8/hUGA==, figureFileBig=CpWXnaPWX8ahXHSn3HXEJA==, tableContent=null), ArticleFig(id=1322931617651634294, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, language=CN, label=图5, caption=
各模型训练集变量重要性(注:色块颜色越深表示该变量对模型预测结果的贡献度越高)
, figureFileSmall=R9zOajFFEirCsNkY8/hUGA==, figureFileBig=CpWXnaPWX8ahXHSn3HXEJA==, tableContent=null), ArticleFig(id=1322931617727131767, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, language=EN, label=Figure 6, caption=
ROC curves of the external validation set for each model, figureFileSmall=oAiDhu3Eje9V8S5/kErlVg==, figureFileBig=T3qjyA6XH16p3rWhirFHyA==, tableContent=null), ArticleFig(id=1322931617815212152, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, language=CN, label=图6, caption=
各模型外部验证集的ROC曲线, figureFileSmall=oAiDhu3Eje9V8S5/kErlVg==, figureFileBig=T3qjyA6XH16p3rWhirFHyA==, tableContent=null), ArticleFig(id=1322931617899098233, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, language=EN, label=Figure 7, caption=
PR curves of the external validation set for each model, figureFileSmall=4RaFaVhaoJvgiY6tUGD8xA==, figureFileBig=/ix17nNhJaLXdBunp+T3QA==, tableContent=null), ArticleFig(id=1322931617995567226, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, language=CN, label=图7, caption=
各模型外部验证集的PR曲线, figureFileSmall=4RaFaVhaoJvgiY6tUGD8xA==, figureFileBig=/ix17nNhJaLXdBunp+T3QA==, tableContent=null), ArticleFig(id=1322931618058481787, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, language=EN, label=Figure 8, caption=
Ordering of variable feature importance in the XGBoost model, figureFileSmall=abIFjUfB9Wd2CLFgJmEapw==, figureFileBig=d8u45dEP7/INZJ1fN0FPzg==, tableContent=null), ArticleFig(id=1322931618146562172, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, language=CN, label=图8, caption=
XGBoost模型变量特征重要性排序, figureFileSmall=abIFjUfB9Wd2CLFgJmEapw==, figureFileBig=d8u45dEP7/INZJ1fN0FPzg==, tableContent=null), ArticleFig(id=1322931618213671037, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, language=EN, label=Figure 9, caption=
Decision curve of the XGBoost model, figureFileSmall=Pp5SnHZ+ZA2M6ooeAvlkyA==, figureFileBig=8zJ3260bfwbcPzoswdjbTA==, tableContent=null), ArticleFig(id=1322931618284974206, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, language=CN, label=图9, caption=
XGBoost模型的决策曲线, figureFileSmall=Pp5SnHZ+ZA2M6ooeAvlkyA==, figureFileBig=8zJ3260bfwbcPzoswdjbTA==, tableContent=null), ArticleFig(id=1322931618360471679, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, language=EN, label=Table 1, caption=
Comparison of general information of rural elderly people between the non-frailty group and the frailty group
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 分类 | 人数 | 无衰弱组(n=992) | 衰弱组(n=374) | χ2值 | P |
|---|
| 性别 | 男 | 675 | 498(50.2) | 177(47.3) | 0.898 | 0.343 |
| 女 | 691 | 494(49.8) | 197(52.7) |
| 年龄 | 60~64岁 | 329 | 232(23.4) | 97(25.9) | 7.345 | 0.119 |
| 65~69岁 | 380 | 274(27.6) | 106(28.3) |
| 70~74岁 | 365 | 272(27.4) | 93(24.9) |
| 75~79岁 | 172 | 117(11.8) | 55(14.7) |
| ≥80岁 | 120 | 97(9.8) | 23(6.2) |
| 文化程度 | 文盲 | 407 | 304(30.6) | 103(27.5) | 5.164 | 0.160 |
| 小学 | 651 | 479(48.4) | 172(46.0) |
| 初中 | 267 | 183(18.4) | 84(22.5) |
| 高中及以上 | 41 | 26(2.6) | 15(4.0) |
| 婚姻状况 | 已婚 | 1 063 | 769(77.5) | 294(78.6) | 0.167 | 0.666 |
| 未婚/离异/丧偶 | 303 | 223(22.5) | 80(21.4) |
| 家庭构成 | 与配偶居住 | 517 | 357(36.0) | 160(42.8) | 7.901 | 0.048 |
| 与子女和配偶居住 | 442 | 341(34.4) | 101(27.0) |
| 与子女居住 | 313 | 226(22.7) | 87(23.2) |
| 其他 | 94 | 68(6.9) | 26(7.0) |
| 家庭月收入 | <1 000元 | 978 | 727(73.3) | 251(67.1) | 5.091 | 0.024 |
| ≥1 000元 | 388 | 265(26.7) | 123(32.9) |
| 收入来源 | 经营性收入 | 128 | 97(9.8) | 31(8.3) | 17.134 | 0.001 |
| 工资性收入 | 495 | 389(39.2) | 106(28.3) |
| 财产性收入 | 109 | 74(7.5) | 35(9.4) |
| 转移性收入 | 634 | 432(43.5) | 202(54.0) |
| 体质指数(BMI) | 消瘦 | 46 | 29(2.9) | 17(4.5) | 3.407 | 0.333 |
| 标准 | 446 | 318(32.1) | 128(34.2) |
| 超重 | 479 | 350(35.3) | 129(34.5) |
| 肥胖 | 395 | 295(29.7) | 100(26.8) |
| 是否吸烟 | 否 | 1 176 | 864(87.1) | 312(83.4) | 3.062 | 0.080 |
| 是 | 190 | 128(12.9) | 62(16.6) |
| 是否饮酒 | 否 | 1 225 | 893(90.0) | 332(88.8) | 0.459 | 0.498 |
| 是 | 141 | 99(10.0) | 42(11.2) |
| 自评健康状况 | 非常好 | 44 | 36(3.6) | 8(2.2) | 9.049 | 0.060 |
| 好 | 433 | 329(33.1) | 104(27.8) |
| 一般 | 498 | 362(36.5) | 136(36.4) |
| 差 | 332 | 226(22.9) | 106(28.3) |
| 非常差 | 59 | 39(3.9) | 20(5.3) |
| 营养状况 | 正常 | 1 122 | 816(82.3) | 306(81.8) | 0.275 | 0.872 |
| 存在营养风险 | 219 | 159(16.0) | 60(16.0) |
| 营养不良 | 25 | 17(1.7) | 8(2.2) |
| 共病程度 | 轻度 | 852 | 631(63.6) | 221(59.1) | 2.362 | 0.124 |
| 重度 | 514 | 361(36.4) | 153(40.9) |
| 视力 | 正常 | 597 | 477(48.1) | 120(32.1) | 28.257 | <0.001 |
| 下降 | 769 | 515(51.9) | 254(67.9) |
| 听力 | 正常 | 705 | 530(53.4) | 175(46.8) | 4.789 | 0.029 |
| 下降 | 661 | 462(46.6) | 199(53.2) |
| 握力 | 正常 | 675 | 490(49.4) | 185(49.5) | 0.001 | 0.982 |
| 下降 | 691 | 502(50.6) | 189(50.5) |
| 小腿围 | 正常 | 747 | 553(55.7) | 194(51.9) | 1.645 | 0.200 |
| 下降 | 619 | 439(44.3) | 180(48.1) |
| SPPB | 优秀 | 811 | 591(59.6) | 220(58.8) | 8.216 | 0.042 |
| 正常 | 455 | 340(34.3) | 115(30.7) |
| 轻度受限 | 87 | 54(5.4) | 33(8.8) |
| 严重受限 | 13 | 7(0.7) | 6(1.7) |
| 牙齿数量 | ≤10颗 | 572 | 431(43.4) | 141(37.7) | 3.688 | 0.158 |
| 11~20颗 | 476 | 336(33.9) | 140(37.4) |
| ≥21颗 | 318 | 225(22.7) | 93(24.9) |
| 是否佩戴假牙 | 是 | 882 | 651(65.6) | 231(61.8) | 1.769 | 0.183 |
| 否 | 484 | 341(34.4) | 143(38.2) |
| 吞咽功能 | 正常 | 1 173 | 865(87.2) | 308(82.4) | 5.254 | 0.022 |
| 异常 | 193 | 127(12.8) | 66(17.6) |
| 跌倒风险 | 无 | 713 | 583(58.8) | 130(34.8) | 62.754 | <0.001 |
| 有 | 653 | 409(41.2) | 244(65.2) |
| 睡眠质量 | 正常 | 910 | 756(76.2) | 154(41.2) | 149.895 | <0.001 |
| 异常 | 456 | 236(23.8) | 220(58.8) |
| 认知状况 | 正常 | 884 | 640(64.5) | 244(65.2) | 0.062 | 0.803 |
| 异常 | 482 | 352(35.5) | 130(34.8) |
| 焦虑状况 | 正常 | 1 311 | 981(98.9) | 330(88.2) | 87.760 | <0.001 |
| 中度 | 32 | 11(1.1) | 21(5.6) |
| 重度 | 23 | 0(0.0) | 23(6.2) |
| 抑郁状况 | 正常 | 1 293 | 967(97.5) | 326(87.2) | 57.118 | <0.001 |
| 异常 | 73 | 25(2.5) | 48(12.8) |
| 社会支持水平 | 低 | 14 | 10(1.0) | 4(1.0) | | 0.317① |
| 中等 | 1 029 | 737(74.3) | 292(78.1) |
| 高 | 323 | 245(24.7) | 78(20.9) |
), ArticleFig(id=1322931618452746368, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, language=CN, label=表1, caption=
无衰弱组与衰弱组农村老年人一般资料比较
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 分类 | 人数 | 无衰弱组(n=992) | 衰弱组(n=374) | χ2值 | P |
|---|
| 性别 | 男 | 675 | 498(50.2) | 177(47.3) | 0.898 | 0.343 |
| 女 | 691 | 494(49.8) | 197(52.7) |
| 年龄 | 60~64岁 | 329 | 232(23.4) | 97(25.9) | 7.345 | 0.119 |
| 65~69岁 | 380 | 274(27.6) | 106(28.3) |
| 70~74岁 | 365 | 272(27.4) | 93(24.9) |
| 75~79岁 | 172 | 117(11.8) | 55(14.7) |
| ≥80岁 | 120 | 97(9.8) | 23(6.2) |
| 文化程度 | 文盲 | 407 | 304(30.6) | 103(27.5) | 5.164 | 0.160 |
| 小学 | 651 | 479(48.4) | 172(46.0) |
| 初中 | 267 | 183(18.4) | 84(22.5) |
| 高中及以上 | 41 | 26(2.6) | 15(4.0) |
| 婚姻状况 | 已婚 | 1 063 | 769(77.5) | 294(78.6) | 0.167 | 0.666 |
| 未婚/离异/丧偶 | 303 | 223(22.5) | 80(21.4) |
| 家庭构成 | 与配偶居住 | 517 | 357(36.0) | 160(42.8) | 7.901 | 0.048 |
| 与子女和配偶居住 | 442 | 341(34.4) | 101(27.0) |
| 与子女居住 | 313 | 226(22.7) | 87(23.2) |
| 其他 | 94 | 68(6.9) | 26(7.0) |
| 家庭月收入 | <1 000元 | 978 | 727(73.3) | 251(67.1) | 5.091 | 0.024 |
| ≥1 000元 | 388 | 265(26.7) | 123(32.9) |
| 收入来源 | 经营性收入 | 128 | 97(9.8) | 31(8.3) | 17.134 | 0.001 |
| 工资性收入 | 495 | 389(39.2) | 106(28.3) |
| 财产性收入 | 109 | 74(7.5) | 35(9.4) |
| 转移性收入 | 634 | 432(43.5) | 202(54.0) |
| 体质指数(BMI) | 消瘦 | 46 | 29(2.9) | 17(4.5) | 3.407 | 0.333 |
| 标准 | 446 | 318(32.1) | 128(34.2) |
| 超重 | 479 | 350(35.3) | 129(34.5) |
| 肥胖 | 395 | 295(29.7) | 100(26.8) |
| 是否吸烟 | 否 | 1 176 | 864(87.1) | 312(83.4) | 3.062 | 0.080 |
| 是 | 190 | 128(12.9) | 62(16.6) |
| 是否饮酒 | 否 | 1 225 | 893(90.0) | 332(88.8) | 0.459 | 0.498 |
| 是 | 141 | 99(10.0) | 42(11.2) |
| 自评健康状况 | 非常好 | 44 | 36(3.6) | 8(2.2) | 9.049 | 0.060 |
| 好 | 433 | 329(33.1) | 104(27.8) |
| 一般 | 498 | 362(36.5) | 136(36.4) |
| 差 | 332 | 226(22.9) | 106(28.3) |
| 非常差 | 59 | 39(3.9) | 20(5.3) |
| 营养状况 | 正常 | 1 122 | 816(82.3) | 306(81.8) | 0.275 | 0.872 |
| 存在营养风险 | 219 | 159(16.0) | 60(16.0) |
| 营养不良 | 25 | 17(1.7) | 8(2.2) |
| 共病程度 | 轻度 | 852 | 631(63.6) | 221(59.1) | 2.362 | 0.124 |
| 重度 | 514 | 361(36.4) | 153(40.9) |
| 视力 | 正常 | 597 | 477(48.1) | 120(32.1) | 28.257 | <0.001 |
| 下降 | 769 | 515(51.9) | 254(67.9) |
| 听力 | 正常 | 705 | 530(53.4) | 175(46.8) | 4.789 | 0.029 |
| 下降 | 661 | 462(46.6) | 199(53.2) |
| 握力 | 正常 | 675 | 490(49.4) | 185(49.5) | 0.001 | 0.982 |
| 下降 | 691 | 502(50.6) | 189(50.5) |
| 小腿围 | 正常 | 747 | 553(55.7) | 194(51.9) | 1.645 | 0.200 |
| 下降 | 619 | 439(44.3) | 180(48.1) |
| SPPB | 优秀 | 811 | 591(59.6) | 220(58.8) | 8.216 | 0.042 |
| 正常 | 455 | 340(34.3) | 115(30.7) |
| 轻度受限 | 87 | 54(5.4) | 33(8.8) |
| 严重受限 | 13 | 7(0.7) | 6(1.7) |
| 牙齿数量 | ≤10颗 | 572 | 431(43.4) | 141(37.7) | 3.688 | 0.158 |
| 11~20颗 | 476 | 336(33.9) | 140(37.4) |
| ≥21颗 | 318 | 225(22.7) | 93(24.9) |
| 是否佩戴假牙 | 是 | 882 | 651(65.6) | 231(61.8) | 1.769 | 0.183 |
| 否 | 484 | 341(34.4) | 143(38.2) |
| 吞咽功能 | 正常 | 1 173 | 865(87.2) | 308(82.4) | 5.254 | 0.022 |
| 异常 | 193 | 127(12.8) | 66(17.6) |
| 跌倒风险 | 无 | 713 | 583(58.8) | 130(34.8) | 62.754 | <0.001 |
| 有 | 653 | 409(41.2) | 244(65.2) |
| 睡眠质量 | 正常 | 910 | 756(76.2) | 154(41.2) | 149.895 | <0.001 |
| 异常 | 456 | 236(23.8) | 220(58.8) |
| 认知状况 | 正常 | 884 | 640(64.5) | 244(65.2) | 0.062 | 0.803 |
| 异常 | 482 | 352(35.5) | 130(34.8) |
| 焦虑状况 | 正常 | 1 311 | 981(98.9) | 330(88.2) | 87.760 | <0.001 |
| 中度 | 32 | 11(1.1) | 21(5.6) |
| 重度 | 23 | 0(0.0) | 23(6.2) |
| 抑郁状况 | 正常 | 1 293 | 967(97.5) | 326(87.2) | 57.118 | <0.001 |
| 异常 | 73 | 25(2.5) | 48(12.8) |
| 社会支持水平 | 低 | 14 | 10(1.0) | 4(1.0) | | 0.317① |
| 中等 | 1 029 | 737(74.3) | 292(78.1) |
| 高 | 323 | 245(24.7) | 78(20.9) |
), ArticleFig(id=1322931618549215361, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, language=EN, label=Table 2, caption=
Evaluation indicators of the training set and internal validation set for each model
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| 模型 | 分类 | AUC | AUPRC | 分类正确率 | 灵敏度 | 特异度 | 阳性预测值 | 阴性预测值 | F1分数 |
|---|
| RF | 训练集 | 0.776 [0.752,0.799] | 0.653 [0.623,0.683] | 0.829 [0.804,0.852] | 0.951 [0.935,0.964] | 0.504 [0.471,0.537] | 0.836 [0.811,0.859] | 0.795 [0.757,0.830] | 0.890 [0.872,0.906] |
| 内部验证集 | 0.783 [0.746,0.820] | 0.668 [0.627,0.709] | 0.819 [0.779,0.855] | 0.963 [0.935,0.981] | 0.438 [0.383,0.494] | 0.819 [0.779,0.855] | 0.817 [0.757,0.868] | 0.885 [0.855,0.912] |
| XGBoost | 训练集 | 0.835 [0.814,0.855] | 0.718 [0.690,0.745] | 0.835 [0.811,0.857] | 0.947 [0.931,0.960] | 0.538 [0.505,0.571] | 0.845 [0.821,0.867] | 0.792 [0.754,0.827] | 0.893 [0.876,0.909] |
| 内部验证集 | 0.829 [0.793,0.865] | 0.695 [0.653,0.737] | 0.829 [0.789,0.865] | 0.956 [0.928,0.976] | 0.491 [0.436,0.546] | 0.833 [0.792,0.870] | 0.809 [0.748,0.862] | 0.890 [0.860,0.917] |
| LR | 训练集 | 0.806 [0.784,0.828] | 0.635 [0.605,0.665] | 0.815 [0.790,0.838] | 0.940 [0.923,0.954] | 0.485 [0.452,0.518] | 0.829 [0.804,0.853] | 0.751 [0.711,0.788] | 0.881 [0.862,0.899] |
| 内部验证集 | 0.792 [0.754,0.830] | 0.624 [0.582,0.666] | 0.804 [0.763,0.842] | 0.953 [0.924,0.974] | 0.411 [0.357,0.467] | 0.811 [0.769,0.849] | 0.767 [0.704,0.822] | 0.876 [0.845,0.904] |
| SVM | 训练集 | 0.819 [0.798,0.840] | 0.633 [0.603,0.663] | 0.819 [0.794,0.842] | 0.940 [0.923,0.954] | 0.500 [0.467,0.533] | 0.833 [0.808,0.856] | 0.757 [0.717,0.794] | 0.883 [0.864,0.901] |
| 内部验证集 | 0.827 [0.791,0.863] | 0.633 [0.591,0.675] | 0.804 [0.763,0.842] | 0.953 [0.924,0.974] | 0.411 [0.357,0.467] | 0.811 [0.769,0.849] | 0.767 [0.704,0.822] | 0.876 [0.845,0.904] |
| ANN | 训练集 | 0.842 [0.822,0.861] | 0.733 [0.706,0.760] | 0.836 [0.812,0.858] | 0.947 [0.931,0.960] | 0.542 [0.509,0.575] | 0.846 [0.822,0.868] | 0.793 [0.755,0.828] | 0.893 [0.876,0.909] |
| 内部验证集 | 0.825 [0.789,0.861] | 0.715 [0.674,0.756] | 0.831 [0.791,0.867] | 0.956 [0.928,0.976] | 0.500 [0.445,0.555] | 0.835 [0.794,0.872] | 0.812 [0.752,0.864] | 0.892 [0.862,0.918] |
), ArticleFig(id=1322931618654072962, tenantId=1146029695717560320, journalId=1220038315760373764, articleId=1322931608436748323, language=CN, label=表2, caption=
各模型训练集与内部验证集评价指标
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| 模型 | 分类 | AUC | AUPRC | 分类正确率 | 灵敏度 | 特异度 | 阳性预测值 | 阴性预测值 | F1分数 |
|---|
| RF | 训练集 | 0.776 [0.752,0.799] | 0.653 [0.623,0.683] | 0.829 [0.804,0.852] | 0.951 [0.935,0.964] | 0.504 [0.471,0.537] | 0.836 [0.811,0.859] | 0.795 [0.757,0.830] | 0.890 [0.872,0.906] |
| 内部验证集 | 0.783 [0.746,0.820] | 0.668 [0.627,0.709] | 0.819 [0.779,0.855] | 0.963 [0.935,0.981] | 0.438 [0.383,0.494] | 0.819 [0.779,0.855] | 0.817 [0.757,0.868] | 0.885 [0.855,0.912] |
| XGBoost | 训练集 | 0.835 [0.814,0.855] | 0.718 [0.690,0.745] | 0.835 [0.811,0.857] | 0.947 [0.931,0.960] | 0.538 [0.505,0.571] | 0.845 [0.821,0.867] | 0.792 [0.754,0.827] | 0.893 [0.876,0.909] |
| 内部验证集 | 0.829 [0.793,0.865] | 0.695 [0.653,0.737] | 0.829 [0.789,0.865] | 0.956 [0.928,0.976] | 0.491 [0.436,0.546] | 0.833 [0.792,0.870] | 0.809 [0.748,0.862] | 0.890 [0.860,0.917] |
| LR | 训练集 | 0.806 [0.784,0.828] | 0.635 [0.605,0.665] | 0.815 [0.790,0.838] | 0.940 [0.923,0.954] | 0.485 [0.452,0.518] | 0.829 [0.804,0.853] | 0.751 [0.711,0.788] | 0.881 [0.862,0.899] |
| 内部验证集 | 0.792 [0.754,0.830] | 0.624 [0.582,0.666] | 0.804 [0.763,0.842] | 0.953 [0.924,0.974] | 0.411 [0.357,0.467] | 0.811 [0.769,0.849] | 0.767 [0.704,0.822] | 0.876 [0.845,0.904] |
| SVM | 训练集 | 0.819 [0.798,0.840] | 0.633 [0.603,0.663] | 0.819 [0.794,0.842] | 0.940 [0.923,0.954] | 0.500 [0.467,0.533] | 0.833 [0.808,0.856] | 0.757 [0.717,0.794] | 0.883 [0.864,0.901] |
| 内部验证集 | 0.827 [0.791,0.863] | 0.633 [0.591,0.675] | 0.804 [0.763,0.842] | 0.953 [0.924,0.974] | 0.411 [0.357,0.467] | 0.811 [0.769,0.849] | 0.767 [0.704,0.822] | 0.876 [0.845,0.904] |
| ANN | 训练集 | 0.842 [0.822,0.861] | 0.733 [0.706,0.760] | 0.836 [0.812,0.858] | 0.947 [0.931,0.960] | 0.542 [0.509,0.575] | 0.846 [0.822,0.868] | 0.793 [0.755,0.828] | 0.893 [0.876,0.909] |
| 内部验证集 | 0.825 [0.789,0.861] | 0.715 [0.674,0.756] | 0.831 [0.791,0.867] | 0.956 [0.928,0.976] | 0.500 [0.445,0.555] | 0.835 [0.794,0.872] | 0.812 [0.752,0.864] | 0.892 [0.862,0.918] |
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Evaluation indicators of the external validation set for each model
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| 模型 | AUC | AUPRC | 分类正确率 | 灵敏度 | 特异度 | 阳性预测值 | 阴性预测值 | F1分数 |
|---|
| RF | 0.780[0.736,0.824] | 0.569[0.522,0.616] | 0.749[0.709,0.787] | 0.767[0.690,0.834] | 0.743[0.698,0.785] | 0.833[0.779,0.878] | 0.626[0.575,0.676] | 0.799[0.738,0.852] |
| XGBoost | 0.797[0.754,0.840] | 0.601[0.554,0.648] | 0.692[0.650,0.732] | 0.679[0.601,0.751] | 0.765[0.721,0.806] | 0.815[0.744,0.873] | 0.549[0.497,0.600] | 0.741[0.664,0.809] |
| LR | 0.762[0.717,0.807] | 0.576[0.529,0.623] | 0.756[0.716,0.794] | 0.777[0.701,0.842] | 0.717[0.668,0.763] | 0.834[0.781,0.879] | 0.636[0.584,0.686] | 0.805[0.745,0.857] |
| SVM | 0.751[0.705,0.797] | 0.556[0.509,0.603] | 0.752[0.712,0.790] | 0.770[0.693,0.836] | 0.735[0.689,0.778] | 0.833[0.779,0.878] | 0.629[0.577,0.679] | 0.801[0.741,0.854] |
| ANN | 0.676[0.628,0.724] | 0.458[0.412,0.504] | 0.690[0.648,0.731] | 0.695[0.616,0.768] | 0.682[0.633,0.729] | 0.801[0.729,0.862] | 0.549[0.497,0.600] | 0.744[0.667,0.812] |
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各模型外部验证集的评价指标
, figureFileSmall=null, figureFileBig=null, tableContent=
| 模型 | AUC | AUPRC | 分类正确率 | 灵敏度 | 特异度 | 阳性预测值 | 阴性预测值 | F1分数 |
|---|
| RF | 0.780[0.736,0.824] | 0.569[0.522,0.616] | 0.749[0.709,0.787] | 0.767[0.690,0.834] | 0.743[0.698,0.785] | 0.833[0.779,0.878] | 0.626[0.575,0.676] | 0.799[0.738,0.852] |
| XGBoost | 0.797[0.754,0.840] | 0.601[0.554,0.648] | 0.692[0.650,0.732] | 0.679[0.601,0.751] | 0.765[0.721,0.806] | 0.815[0.744,0.873] | 0.549[0.497,0.600] | 0.741[0.664,0.809] |
| LR | 0.762[0.717,0.807] | 0.576[0.529,0.623] | 0.756[0.716,0.794] | 0.777[0.701,0.842] | 0.717[0.668,0.763] | 0.834[0.781,0.879] | 0.636[0.584,0.686] | 0.805[0.745,0.857] |
| SVM | 0.751[0.705,0.797] | 0.556[0.509,0.603] | 0.752[0.712,0.790] | 0.770[0.693,0.836] | 0.735[0.689,0.778] | 0.833[0.779,0.878] | 0.629[0.577,0.679] | 0.801[0.741,0.854] |
| ANN | 0.676[0.628,0.724] | 0.458[0.412,0.504] | 0.690[0.648,0.731] | 0.695[0.616,0.768] | 0.682[0.633,0.729] | 0.801[0.729,0.862] | 0.549[0.497,0.600] | 0.744[0.667,0.812] |
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