Objective It is to explore the related influencing factors of insomnia in elderly in cold regions based on tra-ditional Chinese medical(TCM)constitution and their clinical predictive value.Methods A cross-sectional survey was used for questionnaire survey and constitution diagnosis of elderly patients who visited the First Hospital Affiliated to Hei-longjiang University of Traditional Chinese Medicine from September 2021 to December 2022.The subjects were divided in-to normal group(AIS scores<6)and insomnia group(AIS>6)according to Athens Insomnia Scale(AIS),the correla-tion between insomnia and TCM constitution and other influencing factors in elderly people in cold regions was analyzed by single-factor and multifactorial Logistic regression,and the ROC curves of predictive models were plotted to assess the pre-dictive value of TCM constitution and other factors for insomnia in elderly people.Results There were 523 cases in the nor-mal group and 126 cases in the insomnia group,the differences in education and bad habits there were statistically signifi-cant(both P>0.05),but the difference in age,gender,history of allergy and surgery were not statistically significant be-tween the two groups(all P>0.05).The TCM constitution of insomniac elderly people in cold regions mainly was biased constitution;univariate analysis showed that the differences in education level and history of bad habit were statistically sig-nificant among some groups of TCM constitution(all P<0.05);multifactorial logistic regression showed that education lev-el,history of bad hobbies,Yang deficiency constitution,Qi deficiency constitution,Qi depression constitution,and phlegm-dampness constitution were significantly correlated with insomnia in the elderly people in cold regions(all P<0.05),the history of bad hobbies and middle and high education level,Yang deficiency constitution,Qi deficiency consti-tution,Qi depression constitution,and phlegm dampness constitution were the risk factors which influence the sleep of the elderly.ROC curve analysis showed that the predictive model AUC(area under the ROC curve)was 0.808(95%CI:0.765-0.851,P<0.001).Conclusion TCM constitution,history of bad hobbies and education level are indeed associ-ated with insomnia in the elderly in cold regions,and can be used for clinical prediction.We can predict the risk of insom-nia in the elderly based on relevant risk factors,and provide a personalized diagnosis and treatment plan for the elderly combined with"constitution differentiation and treatment".
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