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Pan Y, Zhang X, Wen X, Yuan N, Guo L, Shi Y, Jia Y, Guo Y, Hao F, Qu S, Chen Z, Yang L, Wang X, Liu Y. Development and validation of a machine learning model for prediction of comorbid major depression disorder among narcolepsy type 1. Sleep Med 2024; 119:556-564. [PMID: 38810481 DOI: 10.1016/j.sleep.2024.05.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 05/04/2024] [Accepted: 05/22/2024] [Indexed: 05/31/2024]
Abstract
BACKGROUND Major depression disorder (MDD) forms a common psychiatric comorbidity among patients with narcolepsy type 1 (NT1), yet its impact on patients with NT1 is often overlooked by neurologists. Currently, there is a lack of effective methods for accurately predicting MDD in patients with NT1. OBJECTIVE This study utilized machine learning (ML) algorithms to identify critical variables and developed the prediction model for predicting MDD in patients with NT1. METHODS The study included 267 NT1 patients from four sleep centers. The diagnosis of comorbid MDD was based on Diagnostic and Statistical Manual of Mental Disorders fifth edition (DSM-5). ML models, including six full models and six compact models, were developed using a training set. The performance of these models was compared in the testing set, and the optimal model was evaluated in the testing set. Various evaluation metrics, such as Area under the receiver operating curve (AUC), precision-recall (PR) curve and calibration curve were employed to assess and compare the performance of the ML models. Model interpretability was demonstrated using SHAP. RESULT In the testing set, the logistic regression (LG) model demonstrated superior performance compared to other ML models based on evaluation metrics such as AUC, PR curve, and calibration curve. The top eight features used in the LG model, ranked by feature importance, included social impact scale (SIS) score, narcolepsy severity scale (NSS) score, total sleep time, body mass index (BMI), education years, age of onset, sleep efficiency, sleep latency. CONCLUSION The study yielded a straightforward and practical ML model for the early identification of MDD in patients with NT1. A web-based tool for clinical applications was developed, which deserves further verification in diverse clinical settings.
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Affiliation(s)
- Yuanhang Pan
- Department of Neurology, Xijing Hospital, Air Force Medical University, Xi'an, PR China.
| | - Xinbo Zhang
- Department of Neurology, Xijing Hospital, Air Force Medical University, Xi'an, PR China.
| | - Xinyu Wen
- Department of Neurology, Xijing Hospital, Air Force Medical University, Xi'an, PR China.
| | - Na Yuan
- Department of Neurology, Xijing Hospital, Air Force Medical University, Xi'an, PR China.
| | - Li Guo
- Department of Psychiatry, Xijing Hospital, Air Force Medical University, Xi'an, PR China.
| | - Yifan Shi
- Department of Psychiatry, Xijing Hospital, Air Force Medical University, Xi'an, PR China.
| | - Yuanyuan Jia
- Encerebropathy Department, No.2, Baoji Hospital of Traditional Chinese Medicine, Baoji, PR China.
| | - Yanzhao Guo
- Encerebropathy Department, No.10, Xi'an Hospital of Traditional Chinese Medicine, Xi'an, PR China.
| | - Fengli Hao
- Department of Neurology, Xi'an Daxing Hospital, Xi'an, PR China.
| | - Shuyi Qu
- Department of Neurology, Xijing Hospital, Air Force Medical University, Xi'an, PR China.
| | - Ze Chen
- Department of Neurology, Xijing Hospital, Air Force Medical University, Xi'an, PR China.
| | - Lei Yang
- Department of Neurology, Xijing Hospital, Air Force Medical University, Xi'an, PR China.
| | - Xiaoli Wang
- Department of Neurology, Xijing Hospital, Air Force Medical University, Xi'an, PR China.
| | - Yonghong Liu
- Department of Neurology, Xijing Hospital, Air Force Medical University, Xi'an, PR China.
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Khosravi H, Ahmed I, Choudhury A. Predicting Suicidal Ideation, Planning, and Attempts among the Adolescent Population of the United States. Healthcare (Basel) 2024; 12:1262. [PMID: 38998797 PMCID: PMC11241284 DOI: 10.3390/healthcare12131262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 06/20/2024] [Accepted: 06/22/2024] [Indexed: 07/14/2024] Open
Abstract
Suicide is the second leading cause of death among individuals aged 5 to 24 in the United States (US). However, the precursors to suicide often do not surface, making suicide prevention challenging. This study aims to develop a machine learning model for predicting suicide ideation (SI), suicide planning (SP), and suicide attempts (SA) among adolescents in the US during the coronavirus pandemic. We used the 2021 Adolescent Behaviors and Experiences Survey Data. Class imbalance was addressed using the proposed data augmentation method tailored for binary variables, Modified Synthetic Minority Over-Sampling Technique. Five different ML models were trained and compared. SHapley Additive exPlanations analysis was conducted for explainability. The Logistic Regression model, identified as the most effective, showed superior performance across all targets, achieving high scores in recall: 0.82, accuracy: 0.80, and area under the Receiver Operating Characteristic curve: 0.88. Variables such as sad feelings, hopelessness, sexual behavior, and being overweight were noted as the most important predictors. Our model holds promise in helping health policymakers design effective public health interventions. By identifying vulnerable sub-groups within regions, our model can guide the implementation of tailored interventions that facilitate early identification and referral to medical treatment.
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Affiliation(s)
- Hamed Khosravi
- Industrial and Management Systems Engineering, West Virginia University, Morgantown, WV 26506, USA
| | - Imtiaz Ahmed
- Industrial and Management Systems Engineering, West Virginia University, Morgantown, WV 26506, USA
| | - Avishek Choudhury
- Industrial and Management Systems Engineering, West Virginia University, Morgantown, WV 26506, USA
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Akhtar K, Yaseen MU, Imran M, Khattak SBA, M Nasralla M. Predicting inmate suicidal behavior with an interpretable ensemble machine learning approach in smart prisons. PeerJ Comput Sci 2024; 10:e2051. [PMID: 38983205 PMCID: PMC11232594 DOI: 10.7717/peerj-cs.2051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 04/20/2024] [Indexed: 07/11/2024]
Abstract
The convergence of smart technologies and predictive modelling in prisons presents an exciting opportunity to revolutionize the monitoring of inmate behaviour, allowing for the early detection of signs of distress and the effective mitigation of suicide risks. While machine learning algorithms have been extensively employed in predicting suicidal behaviour, a critical aspect that has often been overlooked is the interoperability of these models. Most of the work done on model interpretations for suicide predictions often limits itself to feature reduction and highlighting important contributing features only. To address this research gap, we used Anchor explanations for creating human-readable statements based on simple rules, which, to our knowledge, have never been used before for suicide prediction models. We also overcome the limitation of anchor explanations, which create weak rules on high-dimensionality datasets, by first reducing data features with the help of SHapley Additive exPlanations (SHAP). We further reduce data features through anchor interpretations for the final ensemble model of XGBoost and random forest. Our results indicate significant improvement when compared with state-of-the-art models, having an accuracy and precision of 98.6% and 98.9%, respectively. The F1-score for the best suicide ideation model appeared to be 96.7%.
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Müller-Bardorff M, Schulz A, Paersch C, Recher D, Schlup B, Seifritz E, Kolassa IT, Kowatsch T, Fisher A, Galatzer-Levy I, Kleim B. Optimizing Outcomes in Psychotherapy for Anxiety Disorders Using Smartphone-Based and Passive Sensing Features: Protocol for a Randomized Controlled Trial. JMIR Res Protoc 2024; 13:e42547. [PMID: 38743473 PMCID: PMC11134235 DOI: 10.2196/42547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 10/06/2022] [Accepted: 10/20/2022] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND Psychotherapies, such as cognitive behavioral therapy (CBT), currently have the strongest evidence of durable symptom changes for most psychological disorders, such as anxiety disorders. Nevertheless, only about half of individuals treated with CBT benefit from it. Predictive algorithms, including digital assessments and passive sensing features, could better identify patients who would benefit from CBT, and thus, improve treatment choices. OBJECTIVE This study aims to establish predictive features that forecast responses to transdiagnostic CBT in anxiety disorders and to investigate key mechanisms underlying treatment responses. METHODS This study is a 2-armed randomized controlled clinical trial. We include patients with anxiety disorders who are randomized to either a transdiagnostic CBT group or a waitlist (referred to as WAIT). We index key features to predict responses prior to starting treatment using subjective self-report questionnaires, experimental tasks, biological samples, ecological momentary assessments, activity tracking, and smartphone-based passive sensing to derive a multimodal feature set for predictive modeling. Additional assessments take place weekly at mid- and posttreatment and at 6- and 12-month follow-ups to index anxiety and depression symptom severity. We aim to include 150 patients, randomized to CBT versus WAIT at a 3:1 ratio. The data set will be subject to full feature and important features selected by minimal redundancy and maximal relevance feature selection and then fed into machine leaning models, including eXtreme gradient boosting, pattern recognition network, and k-nearest neighbors to forecast treatment response. The performance of the developed models will be evaluated. In addition to predictive modeling, we will test specific mechanistic hypotheses (eg, association between self-efficacy, daily symptoms obtained using ecological momentary assessments, and treatment response) to elucidate mechanisms underlying treatment response. RESULTS The trial is now completed. It was approved by the Cantonal Ethics Committee, Zurich. The results will be disseminated through publications in scientific peer-reviewed journals and conference presentations. CONCLUSIONS The aim of this trial is to improve current CBT treatment by precise forecasting of treatment response and by understanding and potentially augmenting underpinning mechanisms and personalizing treatment. TRIAL REGISTRATION ClinicalTrials.gov NCT03945617; https://clinicaltrials.gov/ct2/show/results/NCT03945617. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) DERR1-10.2196/42547.
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Affiliation(s)
- Miriam Müller-Bardorff
- Experimental Psychopathology and Psychotherapy, Department of Psychiatry and Psychology, University of Zurich, Zurich, Switzerland
| | - Ava Schulz
- Experimental Psychopathology and Psychotherapy, Department of Psychiatry and Psychology, University of Zurich, Zurich, Switzerland
| | - Christina Paersch
- Experimental Psychopathology and Psychotherapy, Department of Psychiatry and Psychology, University of Zurich, Zurich, Switzerland
| | - Dominique Recher
- Experimental Psychopathology and Psychotherapy, Department of Psychiatry and Psychology, University of Zurich, Zurich, Switzerland
| | - Barbara Schlup
- Psychiatric University Hospital Zurich, Zurich, Switzerland
| | - Erich Seifritz
- Psychiatric University Hospital Zurich, Zurich, Switzerland
| | | | - Tobias Kowatsch
- Institute for Implementation Science in Health Care, University of Zurich, Zurich, Switzerland
- School of Medicine, University of St. Gallen, St. Gallen, Switzerland
- Centre for Digital Health Interventions, Department of Management, Technology, and Economics, ETH Zurich, Zurich, Switzerland
| | - Aaron Fisher
- Department of Psychology, University of California at Berkeley, Berkeley, CA, United States
| | | | - Birgit Kleim
- Experimental Psychopathology and Psychotherapy, Department of Psychiatry and Psychology, University of Zurich, Zurich, Switzerland
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Sara SS, Rahman MA, Rahman R, Talukder A. Prediction of suicidal ideation with associated risk factors among university students in the southern part of Bangladesh: Machine learning approach. J Affect Disord 2024; 349:502-508. [PMID: 38218257 DOI: 10.1016/j.jad.2024.01.092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 11/09/2023] [Accepted: 01/07/2024] [Indexed: 01/15/2024]
Abstract
BACKGROUND The prevalence of suicidal ideation has become an urgent issue, particularly among adolescents. The primary objective of this research is to determine the prevalence of suicidal ideation among students in the southern region of Bangladesh and to predict this phenomenon using machine learning (ML) models. METHODS The data collection process involved using a simple random sampling technique to gather information from university students located in the southern region of Bangladesh during the period spreading from April 2022 to June 2022. Upon accounting for missing values and non-response rates, the ultimate sample size was determined to be 584, with 51.5 % of participants identifying as male and 48.5 % female. RESULTS A significant proportion of students, precisely 19.9 %, reported experiencing suicidal ideation. Most participants were female (77 %) and unmarried (78 %). Within the machine learning (ML) framework, KNN exhibited the highest accuracy score of 91.45 %. In addition, the Random Forest (RF), and Categorical Boosting (CatBoost) algorithms exhibited comparable levels of accuracy, achieving scores of 90.60 and 90.59 respectively. LIMITATIONS Using a cross-sectional design in research limits the ability to establish causal relationships. CONCLUSION Mental health practitioners can employ the KNN model alongside patients' medical histories to detect those who may be at a higher risk of attempting suicide. This approach enables healthcare professionals to take appropriate measures, such as counselling, encouraging regular sleep patterns, and addressing depression and anxiety, to prevent suicide attempts.
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Affiliation(s)
- Sabiha Shirin Sara
- Statistics Discipline, Science Engineering and Technology School, Khulna University, Khulna 9208, Bangladesh
| | - Md Asikur Rahman
- Statistics Discipline, Science Engineering and Technology School, Khulna University, Khulna 9208, Bangladesh
| | - Riaz Rahman
- Statistics Discipline, Science Engineering and Technology School, Khulna University, Khulna 9208, Bangladesh
| | - Ashis Talukder
- Statistics Discipline, Science Engineering and Technology School, Khulna University, Khulna 9208, Bangladesh; National Centre for Epidemiology and Population Health, Australian National University, Canberra, ACT, 2600, Australia.
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Haghish EF, Nes RB, Obaidi M, Qin P, Stänicke LI, Bekkhus M, Laeng B, Czajkowski N. Unveiling Adolescent Suicidality: Holistic Analysis of Protective and Risk Factors Using Multiple Machine Learning Algorithms. J Youth Adolesc 2024; 53:507-525. [PMID: 37982927 PMCID: PMC10838236 DOI: 10.1007/s10964-023-01892-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 10/17/2023] [Indexed: 11/21/2023]
Abstract
Adolescent suicide attempts are on the rise, presenting a significant public health concern. Recent research aimed at improving risk assessment for adolescent suicide attempts has turned to machine learning. But no studies to date have examined the performance of stacked ensemble algorithms, which are more suitable for low-prevalence conditions. The existing machine learning-based research also lacks population-representative samples, overlooks protective factors and their interplay with risk factors, and neglects established theories on suicidal behavior in favor of purely algorithmic risk estimation. The present study overcomes these shortcomings by comparing the performance of a stacked ensemble algorithm with a diverse set of algorithms, performing a holistic item analysis to identify both risk and protective factors on a comprehensive data, and addressing the compatibility of these factors with two competing theories of suicide, namely, The Interpersonal Theory of Suicide and The Strain Theory of Suicide. A population-representative dataset of 173,664 Norwegian adolescents aged 13 to 18 years (mean = 15.14, SD = 1.58, 50.5% female) with a 4.65% rate of reported suicide attempt during the past 12 months was analyzed. Five machine learning algorithms were trained for suicide attempt risk assessment. The stacked ensemble model significantly outperformed other algorithms, achieving equal sensitivity and a specificity of 90.1%, AUC of 96.4%, and AUCPR of 67.5%. All algorithms found recent self-harm to be the most important indicator of adolescent suicide attempt. Exploratory factor analysis suggested five additional risk domains, which we labeled internalizing problems, sleep disturbance, disordered eating, lack of optimism regarding future education and career, and victimization. The identified factors provided stronger support for The Interpersonal Theory of Suicide than for The Strain Theory of Suicide. An enhancement to The Interpersonal Theory based on the risk and protective factors identified by holistic item analysis is presented.
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Affiliation(s)
- E F Haghish
- Department of Psychology, University of Oslo, Oslo, Norway.
| | - Ragnhild Bang Nes
- Department of Mental Health and Suicide, Norwegian Institute of Public Health, Oslo, Norway
- Promenta Research Center, Department of Psychology, University of Oslo, Oslo, Norway
| | - Milan Obaidi
- Department of Psychology, University of Oslo, Oslo, Norway
- Department of Psychology, Copenhagen University, Copenhagen, Denmark
| | - Ping Qin
- National Centre for Suicide Research and Prevention, Institute for Clinical Medicine, University of Oslo, Oslo, Norway
| | - Line Indrevoll Stänicke
- Department of Psychology, University of Oslo, Oslo, Norway
- Nic Waals Institute, Lovisenberg hospital, Oslo, Norway
| | - Mona Bekkhus
- Promenta Research Center, Department of Psychology, University of Oslo, Oslo, Norway
| | - Bruno Laeng
- Department of Psychology, University of Oslo, Oslo, Norway
- RITMO Centre for Interdisciplinary Studies in Rhythm, Time and Motion, University of Oslo, Oslo, Norway
| | - Nikolai Czajkowski
- Department of Mental Health and Suicide, Norwegian Institute of Public Health, Oslo, Norway
- Promenta Research Center, Department of Psychology, University of Oslo, Oslo, Norway
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Tsai KZ, Liu PY, Lin YP, Chu CC, Huang WC, Sui X, Lavie CJ, Lin GM. Do the American guideline-based leisure time physical activity levels for civilians benefit the mental health of military personnel? Front Psychiatry 2023; 14:1255516. [PMID: 38034917 PMCID: PMC10682789 DOI: 10.3389/fpsyt.2023.1255516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 10/30/2023] [Indexed: 12/02/2023] Open
Abstract
Backgrounds This study aimed to clarify the association of American guideline-based leisure time physical activity (PA) level with mental health in 4,080 military personnel in Taiwan. Methods The moderate intensity PA level was assessed according to the total running time per week (wk) reported in a self-administered questionnaire over the previous 6 months and was categorized into PA level <150, 150-299, and ≥300 min/wk. Mental stress was assessed by the Brief Symptom Rating Scale (BSRS)-5 for which ≥15 points were classified as great mental stress. Suicide ideation (SI) was graded as 1 for mild, 2 for moderate, and 3 or 4 for severe. Multivariable logistic regression analysis was employed to determine the association between PA and mental health while adjusting for demographics, smoking, alcohol intake, betel nut chewing, and obesity. Results As compared to participants with a PA level of <150 min/wk., those with PA levels 150-299 min/wk. and ≥ 300 min/wk. had a lower possibility of SI ≥1 [odds ratios (ORs) and 95% confidence intervals (CIs): 0.58 (0.40-0.83) and 0.23 (0.14-0.36), respectively] and SI ≥1 and/or BSRS-5 ≥ 15 [ORs: 0.55 (0.39-0.79) and 0.21 (0.13-0.34), respectively]. The possibilities were more significantly lower for SI ≥2 [ORs: 0.37 (0.20-0.68) and 0.10 (0.04-0.26), respectively] and SI ≥2 and/or BSRS-5 ≥ 15 [ORs: 0.35 (0.20-0.62) and 0.10 (0.04-0.25), respectively]. Conclusion Our findings indicate that participating in moderate-intensity leisure time PA level for ≥150 min/wk. may have a positive effect on mental health among military personnel. The impact appears to be even more significant when engaging in a higher PA level of ≥300 min/wk.
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Affiliation(s)
- Kun-Zhe Tsai
- Department of Medicine, Hualien Armed Forces General Hospital, Hualien, Taiwan
- Department of Stomatology of Periodontology, Mackay Memorial Hospital, Taipei, Taiwan
- Department of Dentistry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Pang-Yen Liu
- Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Yen-Po Lin
- Department of Critical Care Medicine, Taipei Tzu Chi Hospital, New Taipei City, Taiwan
| | - Chen-Chih Chu
- Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Wei-Chun Huang
- Department of Critical Care Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Xuemei Sui
- Department of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, SC, United States
| | - Carl J. Lavie
- Ochsner Clinical School, John Ochsner Heart and Vascular Institute, The University of Queensland School of Medicine, New Orleans, LA, United States
| | - Gen-Min Lin
- Department of Medicine, Hualien Armed Forces General Hospital, Hualien, Taiwan
- Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
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Roza TH, Seibel GDS, Recamonde-Mendoza M, Lotufo PA, Benseñor IM, Passos IC, Brunoni AR. Suicide risk classification with machine learning techniques in a large Brazilian community sample. Psychiatry Res 2023; 325:115258. [PMID: 37263086 DOI: 10.1016/j.psychres.2023.115258] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 05/17/2023] [Accepted: 05/18/2023] [Indexed: 06/03/2023]
Abstract
Even though suicide is a relatively preventable poor outcome, its prediction remains an elusive task. The main goal of this study was to develop machine learning classifiers to identify increased suicide risk in Brazilians with common mental disorders. With the use of clinical and sociodemographic baseline data (n = 4039 adult participants) from a large Brazilian community sample, we developed several models (Elastic Net, Random Forests, Naïve Bayes, and ensemble) for the classification of increased suicide risk among individuals with common mental disorders. 1120 participants (27.7%) presented increased suicide risk. The Random Forests model achieved the best AUC ROC (0.814), followed by Naive Bayes (0.798) and Elastic Net (0.773). Sensitivity varied from 0.922 (Naive Bayes) to 0.630 (Random Forests), while specificity varied from 0.792 (Random Forests) to 0.473 (Naive Bayes). The ensemble model presented an AUC ROC of 0.811, sensitivity of 0.899, and specificity of 0.510. Features representing depression symptoms were the most relevant for the classification of increased suicide risk. Some of our models presented good performance metrics in the classification of increased suicide risk in the investigated sample, which can provide the means to early preventive interventions.
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Affiliation(s)
- Thiago Henrique Roza
- Department of Psychiatry, Universidade Federal do Paraná (UFPR), Curitiba, PR, Brazil; Laboratory of Molecular Psychiatry, Centro de Pesquisa Experimental (CPE) and Centro de Pesquisa Clínica (CPC), Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil; Graduate Program in Psychiatry and Behavioral Sciences, Department of Psychiatry, Faculty of Medicine, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.
| | - Gabriel de Souza Seibel
- Institute of Informatics, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.
| | - Mariana Recamonde-Mendoza
- Institute of Informatics, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Bioinformatics Core, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil.
| | - Paulo A Lotufo
- Department of Internal Medicine, Faculty of Medicine, Universidade de São Paulo (USP), São Paulo, SP, Brazil.
| | - Isabela M Benseñor
- Department of Internal Medicine, Faculty of Medicine, Universidade de São Paulo (USP), São Paulo, SP, Brazil.
| | - Ives Cavalcante Passos
- Laboratory of Molecular Psychiatry, Centro de Pesquisa Experimental (CPE) and Centro de Pesquisa Clínica (CPC), Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil; Graduate Program in Psychiatry and Behavioral Sciences, Department of Psychiatry, Faculty of Medicine, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.
| | - Andre Russowsky Brunoni
- Department of Psychiatry and Laboratory of Neurosciences (LIM-27), Institute of Psychiatry, Universidade de São Paulo (USP), São Paulo, SP, Brazil.
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Wei Z, Wang X, Ren L, Liu C, Liu C, Cao M, Feng Y, Gan Y, Li G, Liu X, Liu Y, Yang L, Deng Y. Using machine learning approach to predict depression and anxiety among patients with epilepsy in China: A cross-sectional study. J Affect Disord 2023; 336:1-8. [PMID: 37209912 DOI: 10.1016/j.jad.2023.05.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 05/11/2023] [Accepted: 05/14/2023] [Indexed: 05/22/2023]
Abstract
BACKGROUND Anxiety and depression are the most prevalent comorbidities among epilepsy patients. The screen and diagnosis of anxiety and depression are quite important for the management of patients with epilepsy. In that case, the method for accurately predicting anxiety and depression needs to be further explored. METHODS A total of 480 patients with epilepsy (PWE) were enrolled in our study. Anxiety and Depressive symptoms were evaluated. Six machine learning models were used to predict anxiety and depression in patients with epilepsy. Receiver operating curve (ROC), decision curve analysis (DCA) and moDel Agnostic Language for Exploration and eXplanation (DALEX) package were used to evaluate the accuracy of machine learning models. RESULTS For anxiety, the area under the ROC curve was not significantly different between models. DCA revealed that random forest and multilayer perceptron has the largest net benefit within different probability threshold. DALEX revealed that random forest and multilayer perceptron were models with best performance and stigma had the highest feature importance. For depression, the results were much the same. CONCLUSIONS Methods created in this study may offer much help identifying PWE with high risk of anxiety and depression. The decision support system may be valuable for the everyday management of PWE. Further study is needed to test the outcome of applying this system to clinical settings.
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Affiliation(s)
- Zihan Wei
- Department of Neurology, Xijing Hospital, Fourth Military Medical University, 127 West Changle Road, Xi'an 710032, People's Republic of China
| | - Xinpei Wang
- School of Aerospace Medicine, Fourth Military Medical University, 169 West Changle Road, Xi'an 710032, People's Republic of China
| | - Lei Ren
- Department of Clinical Psychology, Fourth Military Medical University, 169 West Changle Road, Xi'an 710032, People's Republic of China
| | - Chang Liu
- BrainPark, Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Clayton, Australia
| | - Chao Liu
- Department of Neurology, Xijing Hospital, Fourth Military Medical University, 127 West Changle Road, Xi'an 710032, People's Republic of China
| | - Mi Cao
- Department of Neurology, Xijing Hospital, Fourth Military Medical University, 127 West Changle Road, Xi'an 710032, People's Republic of China
| | - Yan Feng
- Department of Neurology, Xijing Hospital, Fourth Military Medical University, 127 West Changle Road, Xi'an 710032, People's Republic of China; Xi'an Medical University, Xi'an 710021, People's Republic of China
| | - Yanjing Gan
- Department of Neurology, Xijing Hospital, Fourth Military Medical University, 127 West Changle Road, Xi'an 710032, People's Republic of China
| | - Guoyan Li
- Department of Neurology, Xijing Hospital, Fourth Military Medical University, 127 West Changle Road, Xi'an 710032, People's Republic of China; Xi'an Medical University, Xi'an 710021, People's Republic of China
| | - Xufeng Liu
- Department of Clinical Psychology, Fourth Military Medical University, 169 West Changle Road, Xi'an 710032, People's Republic of China
| | - Yonghong Liu
- Department of Neurology, Xijing Hospital, Fourth Military Medical University, 127 West Changle Road, Xi'an 710032, People's Republic of China.
| | - Lei Yang
- Department of Neurology, Xijing Hospital, Fourth Military Medical University, 127 West Changle Road, Xi'an 710032, People's Republic of China.
| | - Yanchun Deng
- Department of Neurology, Xijing Hospital, Fourth Military Medical University, 127 West Changle Road, Xi'an 710032, People's Republic of China.
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Nordin N, Zainol Z, Mohd Noor MH, Chan LF. Suicidal behaviour prediction models using machine learning techniques: A systematic review. Artif Intell Med 2022; 132:102395. [DOI: 10.1016/j.artmed.2022.102395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 08/12/2022] [Accepted: 08/29/2022] [Indexed: 11/02/2022]
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Hoque Tania M, Hossain MR, Jahanara N, Andreev I, Clifton DA. Thinking Aloud or Screaming Inside: Exploratory Study of Sentiment Around Work. JMIR Form Res 2022; 6:e30113. [PMID: 36178712 PMCID: PMC9568814 DOI: 10.2196/30113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 07/03/2022] [Accepted: 08/10/2022] [Indexed: 11/30/2022] Open
Abstract
Background Millions of workers experience work-related ill health every year. The loss of working days often accounts for poor well-being because of discomfort and stress caused by the workplace. The ongoing pandemic and postpandemic shift in socioeconomic and work culture can continue to contribute to adverse work-related sentiments. Critically investigating state-of-the-art technologies, this study identifies the research gaps in recognizing workers’ need for well-being support, and we aspire to understand how such evidence can be collected to transform the workforce and workplace. Objective Building on recent advances in sentiment analysis, this study aims to closely examine the potential of social media as a tool to assess workers’ emotions toward the workplace. Methods This study collected a large Twitter data set comprising both pandemic and prepandemic tweets facilitated through a human-in-the-loop approach in combination with unsupervised learning and meta-heuristic optimization algorithms. The raw data preprocessed through natural language processing techniques were assessed using a generative statistical model and a lexicon-assisted rule-based model, mapping lexical features to emotion intensities. This study also assigned human annotations and performed work-related sentiment analysis. Results A mixed methods approach, including topic modeling using latent Dirichlet allocation, identified the top topics from the corpus to understand how Twitter users engage with discussions on work-related sentiments. The sorted aspects were portrayed through overlapped clusters and low intertopic distances. However, further analysis comprising the Valence Aware Dictionary for Sentiment Reasoner suggested a smaller number of negative polarities among diverse subjects. By contrast, the human-annotated data set created for this study contained more negative sentiments. In this study, sentimental juxtaposition revealed through the labeled data set was supported by the n-gram analysis as well. Conclusions The developed data set demonstrates that work-related sentiments are projected onto social media, which offers an opportunity to better support workers. The infrastructure of the workplace, the nature of the work, the culture within the industry and the particular organization, employers, colleagues, person-specific habits, and upbringing all play a part in the health and well-being of any working adult who contributes to the productivity of the organization. Therefore, understanding the origin and influence of the complex underlying factors both qualitatively and quantitatively can inform the next generation of workplaces to drive positive change by relying on empirically grounded evidence. Therefore, this study outlines a comprehensive approach to capture deeper insights into work-related health.
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Affiliation(s)
- Marzia Hoque Tania
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, United Kingdom
| | - Md Razon Hossain
- School of Information System, Queensland University of Technology, Brisbane, Australia
| | - Nuzhat Jahanara
- Department of Psychology, University of Dhaka, Dhaka, Bangladesh
| | - Ilya Andreev
- School of Engineering and the Built Environment, Anglia Ruskin University, Cambridge, United Kingdom
| | - David A Clifton
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, United Kingdom
- Oxford Centre for Advanced Research (OSCAR), University of Oxford, Suzhou, China
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12
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Levis M, Levy J, Dufort V, Gobbel GT, Watts BV, Shiner B. Leveraging unstructured electronic medical record notes to derive population-specific suicide risk models. Psychiatry Res 2022; 315:114703. [PMID: 35841702 DOI: 10.1016/j.psychres.2022.114703] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 06/17/2022] [Accepted: 06/29/2022] [Indexed: 01/11/2023]
Abstract
Electronic medical record (EMR)-based suicide risk prediction methods typically rely on analysis of structured variables such as demographics, visit history, and prescription data. Leveraging unstructured EMR notes may improve predictive accuracy by allowing access to nuanced clinical information. We utilized natural language processing (NLP) to analyze a large EMR note corpus to develop a data-driven suicide risk prediction model. We developed a matched case-control sample of U.S. Department of Veterans Affairs (VA) patients in 2015 and 2016. We randomly matched each case (all patients that died by suicide in that interval, n = 5029) with five controls (patients that remained alive). We processed note corpus using NLP methods and applied machine-learning classification algorithms to output. We calculated area under the curve (AUC) and risk tiers to determine predictive accuracy. NLP-derived models demonstrated strong predictive accuracy. Patients that scored within top 10% of risk model accounted for up to 29% of suicide decedents. NLP-derived model compares positively to other leading prediction methods. Our approach is highly implementable, only requiring access to text data and open-source software. Additional studies should evaluate ensemble models incorporating NLP-derived information alongside more typical structured variables.
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Affiliation(s)
- Maxwell Levis
- VAMC White River Junction, 163 Veterans Dr., White River Junction VT, 05009 United States; Department of Psychiatry, Geisel School of Medicine, 1 Rope Ferry Rd, Hanover NH, 03755 United States.
| | - Joshua Levy
- Departments of Pathology and Laboratory Medicine, Geisel School of Medicine, 1 Rope Ferry Rd, Hanover NH, 03755 United States
| | - Vincent Dufort
- VAMC White River Junction, 163 Veterans Dr., White River Junction VT, 05009 United States
| | - Glenn T Gobbel
- Department of Biomedical Informatics, 2201 West End Ave, Nashville TN, 37235 United States
| | - Bradley V Watts
- VAMC White River Junction, 163 Veterans Dr., White River Junction VT, 05009 United States; Department of Psychiatry, Geisel School of Medicine, 1 Rope Ferry Rd, Hanover NH, 03755 United States; VA Office of Systems Redesign and Improvement, 215 North Main Street, White River Junction VT, 05009, United States
| | - Brian Shiner
- VAMC White River Junction, 163 Veterans Dr., White River Junction VT, 05009 United States; Department of Psychiatry, Geisel School of Medicine, 1 Rope Ferry Rd, Hanover NH, 03755 United States; National Center for PTSD, White River Junction, VT, United States
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13
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Lee C, Kim H. Machine learning-based predictive modeling of depression in hypertensive populations. PLoS One 2022; 17:e0272330. [PMID: 35905087 PMCID: PMC9337649 DOI: 10.1371/journal.pone.0272330] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 07/18/2022] [Indexed: 11/19/2022] Open
Abstract
We aimed to develop prediction models for depression among U.S. adults with hypertension using various machine learning (ML) approaches. Moreover, we analyzed the mechanisms of the developed models. This cross-sectional study included 8,628 adults with hypertension (11.3% with depression) from the National Health and Nutrition Examination Survey (2011–2020). We selected several significant features using feature selection methods to build the models. Data imbalance was managed with random down-sampling. Six different ML classification methods implemented in the R package caret—artificial neural network, random forest, AdaBoost, stochastic gradient boosting, XGBoost, and support vector machine—were employed with 10-fold cross-validation for predictions. Model performance was assessed by examining the area under the receiver operating characteristic curve (AUC), accuracy, precision, sensitivity, specificity, and F1-score. For an interpretable algorithm, we used the variable importance evaluation function in caret. Of all classification models, artificial neural network trained with selected features (n = 30) achieved the highest AUC (0.813) and specificity (0.780) in predicting depression. Support vector machine predicted depression with the highest accuracy (0.771), precision (0.969), sensitivity (0.774), and F1-score (0.860). The most frequent and important features contributing to the models included the ratio of family income to poverty, triglyceride level, white blood cell count, age, sleep disorder status, the presence of arthritis, hemoglobin level, marital status, and education level. In conclusion, ML algorithms performed comparably in predicting depression among hypertensive populations. Furthermore, the developed models shed light on variables’ relative importance, paving the way for further clinical research.
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Affiliation(s)
- Chiyoung Lee
- School of Nursing & Health Studies, University of Washington Bothell, Bothell, Washington, United States of America
- * E-mail:
| | - Heewon Kim
- The Department of Electrical and Computer Engineering, Automation and Systems Research Institute, Seoul National University, Seoul, Korea
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14
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Hsu CY, Liu PY, Liu SH, Kwon Y, Lavie CJ, Lin GM. Machine Learning for Electrocardiographic Features to Identify Left Atrial Enlargement in Young Adults: CHIEF Heart Study. Front Cardiovasc Med 2022; 9:840585. [PMID: 35299979 PMCID: PMC8921457 DOI: 10.3389/fcvm.2022.840585] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 01/31/2022] [Indexed: 01/09/2023] Open
Abstract
Background Left atrial enlargement (LAE) is associated with cardiovascular events. Machine learning for ECG parameters to predict LAE has been performed in middle- and old-aged individuals but has not been performed in young adults. Methods In a sample of 2,206 male adults aged 17–43 years, three machine learning classifiers, multilayer perceptron (MLP), logistic regression (LR), and support vector machine (SVM) for 26 ECG features with or without 6 biological features (age, body height, body weight, waist circumference, and systolic and diastolic blood pressure) were compared with the P wave duration of lead II, the traditional ECG criterion for LAE. The definition of LAE is based on an echocardiographic left atrial dimension > 4 cm in the parasternal long axis window. Results The greatest area under the receiver operating characteristic curve is present in machine learning of the SVM for ECG only (77.87%) and of the MLP for all biological and ECG features (81.01%), both of which are superior to the P wave duration (62.19%). If the sensitivity is fixed to 70–75%, the specificity of the SVM for ECG only is up to 72.4%, and that of the MLP for all biological and ECG features is increased to 81.1%, both of which are higher than 48.8% by the P wave duration. Conclusions This study suggests that machine learning is a reliable method for ECG and biological features to predict LAE in young adults. The proposed MLP, LR, and SVM methods provide early detection of LAE in young adults and are helpful to take preventive action on cardiovascular diseases.
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Affiliation(s)
- Chu-Yu Hsu
- Department of Medicine, Hualien Armed Forces General Hospital, Hualien City, Taiwan.,Department of Internal Medicine, Tri-Service General Hospital and National Defense Medical Center, Taipei City, Taiwan.,Department of Medicine, Taoyuan Armed Forces General Hospital, Taoyuan City, Taiwan
| | - Pang-Yen Liu
- Department of Medicine, Hualien Armed Forces General Hospital, Hualien City, Taiwan.,Department of Internal Medicine, Tri-Service General Hospital and National Defense Medical Center, Taipei City, Taiwan
| | - Shu-Hsin Liu
- Department of Nuclear Medicine, Hualien Tzu Chi Hospital, Hualien City, Taiwan
| | - Younghoon Kwon
- Department of Internal Medicine, University of Washington, Seattle, WA, United States
| | - Carl J Lavie
- John Ochsner Heart and Vascular Institute, Ochsner Clinical School, The University of Queensland School of Medicine, New Orleans, LA, United States
| | - Gen-Min Lin
- Department of Medicine, Hualien Armed Forces General Hospital, Hualien City, Taiwan.,Department of Internal Medicine, Tri-Service General Hospital and National Defense Medical Center, Taipei City, Taiwan
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15
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How to evaluate classifier performance in the presence of additional effects: A new POD-based approach allowing certification of machine learning approaches. MACHINE LEARNING WITH APPLICATIONS 2022. [DOI: 10.1016/j.mlwa.2021.100220] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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16
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Machine learning for suicidal ideation identification: A systematic literature review. COMPUTERS IN HUMAN BEHAVIOR 2022. [DOI: 10.1016/j.chb.2021.107095] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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17
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Wulz AR, Law R, Wang J, Wolkin AF. Leveraging data science to enhance suicide prevention research: a literature review. Inj Prev 2022; 28:74-80. [PMID: 34413072 PMCID: PMC9161307 DOI: 10.1136/injuryprev-2021-044322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 07/31/2021] [Indexed: 02/03/2023]
Abstract
OBJECTIVE The purpose of this research is to identify how data science is applied in suicide prevention literature, describe the current landscape of this literature and highlight areas where data science may be useful for future injury prevention research. DESIGN We conducted a literature review of injury prevention and data science in April 2020 and January 2021 in three databases. METHODS For the included 99 articles, we extracted the following: (1) author(s) and year; (2) title; (3) study approach (4) reason for applying data science method; (5) data science method type; (6) study description; (7) data source and (8) focus on a disproportionately affected population. RESULTS Results showed the literature on data science and suicide more than doubled from 2019 to 2020, with articles with individual-level approaches more prevalent than population-level approaches. Most population-level articles applied data science methods to describe (n=10) outcomes, while most individual-level articles identified risk factors (n=27). Machine learning was the most common data science method applied in the studies (n=48). A wide array of data sources was used for suicide research, with most articles (n=45) using social media and web-based behaviour data. Eleven studies demonstrated the value of applying data science to suicide prevention literature for disproportionately affected groups. CONCLUSION Data science techniques proved to be effective tools in describing suicidal thoughts or behaviour, identifying individual risk factors and predicting outcomes. Future research should focus on identifying how data science can be applied in other injury-related topics.
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Affiliation(s)
- Avital Rachelle Wulz
- Oak Ridge Associated Universities (ORAU), Division of Injury Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Royal Law
- Division of Injury Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Jing Wang
- Division of Injury Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Amy Funk Wolkin
- Division of Injury Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
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18
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de Souza Filho EM, Fernandes FDA, Wiefels C, de Carvalho LND, Dos Santos TF, Dos Santos AASMD, Mesquita ET, Seixas FL, Chow BJW, Mesquita CT, Gismondi RA. Machine Learning Algorithms to Distinguish Myocardial Perfusion SPECT Polar Maps. Front Cardiovasc Med 2021; 8:741667. [PMID: 34901207 PMCID: PMC8660123 DOI: 10.3389/fcvm.2021.741667] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 09/29/2021] [Indexed: 12/18/2022] Open
Abstract
Myocardial perfusion imaging (MPI) plays an important role in patients with suspected and documented coronary artery disease (CAD). Machine Learning (ML) algorithms have been developed for many medical applications with excellent performance. This study used ML algorithms to discern normal and abnormal gated Single Photon Emission Computed Tomography (SPECT) images. We analyzed one thousand and seven polar maps from a database of patients referred to a university hospital for clinically indicated MPI between January 2016 and December 2018. These studies were reported and evaluated by two different expert readers. The image features were extracted from a specific type of polar map segmentation based on horizontal and vertical slices. A senior expert reading was the comparator (gold standard). We used cross-validation to divide the dataset into training and testing subsets, using data augmentation in the training set, and evaluated 04 ML models. All models had accuracy >90% and area under the receiver operating characteristics curve (AUC) >0.80 except for Adaptive Boosting (AUC = 0.77), while all precision and sensitivity obtained were >96 and 92%, respectively. Random Forest had the best performance (AUC: 0.853; accuracy: 0,938; precision: 0.968; sensitivity: 0.963). ML algorithms performed very well in image classification. These models were capable of distinguishing polar maps remarkably into normal and abnormal.
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Affiliation(s)
- Erito Marques de Souza Filho
- Post-graduation in Cardiovascular Sciences, Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil.,Department of Languages and Technologies, Universidade Federal Rural do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Fernando de Amorim Fernandes
- Post-graduation in Cardiovascular Sciences, Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil.,Department of Nuclear Medicine, Hospital Universitário Antônio Pedro/EBSERH, Universidade Federal Fluminense, Rio de Janeiro, Brazil
| | - Christiane Wiefels
- Post-graduation in Cardiovascular Sciences, Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil.,Department of Cardiac Image, University of Ottawa Heart Institute, Ottawa, ON, Canada
| | | | - Tadeu Francisco Dos Santos
- Post-graduation in Cardiovascular Sciences, Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil
| | | | - Evandro Tinoco Mesquita
- Post-graduation in Cardiovascular Sciences, Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil
| | - Flávio Luiz Seixas
- Institute of Computing, Universidade Federal Fluminense, Rio de Janeiro, Brazil
| | - Benjamin J W Chow
- Department of Cardiac Image, University of Ottawa Heart Institute, Ottawa, ON, Canada
| | - Claudio Tinoco Mesquita
- Post-graduation in Cardiovascular Sciences, Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil.,Department of Nuclear Medicine, Hospital Pró-Cardíaco, Americas Serviços Medicos, Rio de Janeiro, Brazil
| | - Ronaldo Altenburg Gismondi
- Post-graduation in Cardiovascular Sciences, Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil
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19
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D'Hotman D, Loh E. AI enabled suicide prediction tools: a qualitative narrative review. BMJ Health Care Inform 2021; 27:bmjhci-2020-100175. [PMID: 33037037 PMCID: PMC7549453 DOI: 10.1136/bmjhci-2020-100175] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 08/19/2020] [Accepted: 08/21/2020] [Indexed: 12/18/2022] Open
Abstract
Background: Suicide poses a significant health burden worldwide. In many cases, people at risk of suicide do not engage with their doctor or community due to concerns about stigmatisation and forced medical treatment; worse still, people with mental illness (who form a majority of people who die from suicide) may have poor insight into their mental state, and not self-identify as being at risk. These issues are exacerbated by the fact that doctors have difficulty in identifying those at risk of suicide when they do present to medical services. Advances in artificial intelligence (AI) present opportunities for the development of novel tools for predicting suicide. Method: We searched Google Scholar and PubMed for articles relating to suicide prediction using artificial intelligence from 2017 onwards. Conclusions: This paper presents a qualitative narrative review of research focusing on two categories of suicide prediction tools: medical suicide prediction and social suicide prediction. Initial evidence is promising: AI-driven suicide prediction could improve our capacity to identify those at risk of suicide, and, potentially, save lives. Medical suicide prediction may be relatively uncontroversial when it pays respect to ethical and legal principles; however, further research is required to determine the validity of these tools in different contexts. Social suicide prediction offers an exciting opportunity to help identify suicide risk among those who do not engage with traditional health services. Yet, efforts by private companies such as Facebook to use online data for suicide prediction should be the subject of independent review and oversight to confirm safety, effectiveness and ethical permissibility.
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Affiliation(s)
- Daniel D'Hotman
- Oxford Uehiro Centre for Practical Ethics, University of Oxford, Oxford, United Kingdom
| | - Erwin Loh
- Monash Centre for Health Research and Implementation, Monash University, Clayton, Victoria, Australia.,Group Chief Medical Officer, St Vincent's Health Australia Ltd, East Melbourne, Victoria, Australia
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20
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Metabolically healthy obesity and physical fitness in military males in the CHIEF study. Sci Rep 2021; 11:9088. [PMID: 33907258 PMCID: PMC8079407 DOI: 10.1038/s41598-021-88728-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 04/16/2021] [Indexed: 12/15/2022] Open
Abstract
The metabolically healthy obese (MHO) characterized by the absence of metabolic syndrome have shown superior cardiorespiratory fitness (CRF) and similar muscular strength as compared with the metabolically unhealthy obese (MUO). However, this finding might be biased by the baseline sedentary behavior in the general population. This study utilized 3669 physically active military males aged 18-50 years in Taiwan. Obesity and metabolically unhealthy were respectively defined as body mass index ≥ 27.5 kg/m2 and presence of at least two major components of the metabolic syndrome, according to the International Diabetes Federation criteria for Asian male adults. Four groups were accordingly classified as the metabolically healthy lean (MHL, n = 2510), metabolically unhealthy lean (MUL, n = 331), MHO (n = 181) and MUO (n = 647). CRF was evaluated by time for a 3-km run, and muscular strengths were separately assessed by numbers of push-up and sit-up within 2 min. Analysis of covariance was utilized to compare the difference in each exercise performance between groups adjusting for age, service specialty, smoking, alcohol intake and physical activity. The metabolic syndrome prevalence in MUL and MUO was 49.8% and 47.6%, respectively. The performance of CRF did not differ between MHO and MUO (892.3 ± 5.4 s and 892.6 ± 3.0 s, p = 0.97) which were both inferior to MUL and MHL (875.2 ± 4.0 s and 848.6 ± 1.3 s, all p values < 0.05). The performance of muscular strengths evaluated by 2-min push-ups did not differ between MUL and MUO (45.3 ± 0.6 and 45.2 ± 0.4, p = 0.78) which were both less than MHO and MHL (48.4 ± 0.8 and 50.6 ± 0.2, all p values < 0.05). However, the performance of 2-min sit-ups were only superior in MHL (48.1 ± 0.1) as compared with MUL, MHO and MUO (45.9 ± 0.4, 46.7 ± 0.5 and 46.1 ± 0.3, respectively, all p values < 0.05). Our findings suggested that in a physically active male cohort, the MHO might have greater muscle strengths, but have similar CRF level compared with the MUO.
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21
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Understanding current states of machine learning approaches in medical informatics: a systematic literature review. HEALTH AND TECHNOLOGY 2021. [DOI: 10.1007/s12553-021-00538-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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22
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Mansourian M, Khademi S, Marateb HR. A Comprehensive Review of Computer-Aided Diagnosis of Major Mental and Neurological Disorders and Suicide: A Biostatistical Perspective on Data Mining. Diagnostics (Basel) 2021; 11:393. [PMID: 33669114 PMCID: PMC7996506 DOI: 10.3390/diagnostics11030393] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 02/13/2021] [Accepted: 02/17/2021] [Indexed: 02/07/2023] Open
Abstract
The World Health Organization (WHO) suggests that mental disorders, neurological disorders, and suicide are growing causes of morbidity. Depressive disorders, schizophrenia, bipolar disorder, Alzheimer's disease, and other dementias account for 1.84%, 0.60%, 0.33%, and 1.00% of total Disability Adjusted Life Years (DALYs). Furthermore, suicide, the 15th leading cause of death worldwide, could be linked to mental disorders. More than 68 computer-aided diagnosis (CAD) methods published in peer-reviewed journals from 2016 to 2021 were analyzed, among which 75% were published in the year 2018 or later. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) protocol was adopted to select the relevant studies. In addition to the gold standard, the sample size, neuroimaging techniques or biomarkers, validation frameworks, the classifiers, and the performance indices were analyzed. We further discussed how various performance indices are essential based on the biostatistical and data mining perspective. Moreover, critical information related to the Transparent reporting of a multivariable prediction model for individual prognosis or diagnosis (TRIPOD) guidelines was analyzed. We discussed how balancing the dataset and not using external validation could hinder the generalization of the CAD methods. We provided the list of the critical issues to consider in such studies.
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Affiliation(s)
- Mahsa Mansourian
- Department of Medical Physics, School of Medicine, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran;
| | - Sadaf Khademi
- Biomedical Engineering Department, Faculty of Engineering, University of Isfahan, Isfahan 8174-67344, Iran;
| | - Hamid Reza Marateb
- Biomedical Engineering Department, Faculty of Engineering, University of Isfahan, Isfahan 8174-67344, Iran;
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23
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Lin YP, Fan CH, Tsai KZ, Lin KH, Han CL, Lin GM. Psychological stress and long-term blood pressure variability of military young males: The cardiorespiratory fitness and hospitalization events in armed forces study. World J Cardiol 2020; 12:626-633. [PMID: 33391615 PMCID: PMC7754384 DOI: 10.4330/wjc.v12.i12.626] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 10/10/2020] [Accepted: 11/05/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Acute stress might increase short-term heart rate variability and blood pressure variability (BPV); however, chronic stress would not alter short-term BPV in animal models.
AIM To examine the association of psychological stress with long-term BPV in young male humans.
METHODS We prospectively examined the association of chronic psychological stress with long-term BPV in 1112 healthy military males, averaged 32.2 years from the cardiorespiratory fitness and hospitalization events in armed forces study in Taiwan. Psychological stress was quantitatively evaluated with the Brief Symptom Rating Scale (BSRS-5), from the least symptom of 0 to the most severe of 20, and the five components of anxiety, insomnia, depression, interpersonal sensitivity, and hostility (the severity score in each component from 0 to 4). Long-term BPV was assessed by standard deviation (SD) for systolic and diastolic blood pressure (SBP and DBP), and average real variability (ARV), defined as the average absolute difference between successive measurements of SBP or DBP, across four visits in the study period from 2012 to 2018 (2012-14, 2014-15, 2015-16, and 2016-18).
RESULTS The results of multivariable linear regressions showed that there were no correlations of the BSRS-5 score with SDSBP, SDDBP, ARVSBP, and ARVDBP after adjusting for all the covariates [β(SE): -0.022 (0.024), -0.023 (0.026), -0.001 (0.018), and 0.001 (0.020), respectively; P > 0.05 for all]. In addition, there were also no correlations between each component of the BSRS score and the long-term BPV indexes.
CONCLUSION Our findings suggest that chronic psychological stress might not be associated with long-term BPV in military young male humans.
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Affiliation(s)
- Yen-Po Lin
- Department of Critical Care Medicine, Yonghe Cardinal Tien Hospital, Yonghe 234, Taiwan
| | - Chia-Hao Fan
- Department of Nursing, Hualien Armed Forces General Hospital, Hualien 97144, Taiwan
| | - Kun-Zhe Tsai
- Department of Dentistry, Hualien Armed Forces General Hospital, Hualien 971, Taiwan
| | - Ko-Hwan Lin
- Department of Psychiatry, Hualien Armed Forces General Hospital, Hualien 97144, Taiwan
| | - Chih-Lu Han
- Department of Medicine, Taipei Veterans General Hospital, Taipei 112, Taiwan
| | - Gen-Min Lin
- Department of Medicine, Hualien Armed Forces General Hospital, Hualien 970, Taiwan
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24
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Predicting body mass index and isometric leg strength using soft tissue distributions from computed tomography scans. HEALTH AND TECHNOLOGY 2020. [DOI: 10.1007/s12553-020-00498-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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25
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Su FY, Lin YP, Lin F, Yu YS, Kwon Y, Lu HHS, Lin GM. Comparisons of traditional electrocardiographic criteria for left and right ventricular hypertrophy in young Asian women: The CHIEF heart study. Medicine (Baltimore) 2020; 99:e22836. [PMID: 33080764 PMCID: PMC7572030 DOI: 10.1097/md.0000000000022836] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The performance of electrocardiographic (ECG) voltage criteria to identify left and right ventricular hypertrophy (LVH and RVH) in young Asian female adults have not been clarified so far.In a sample of 255 military young female adults, aged 25.2 years on average, echocardiographic LVH was respectively defined as the left ventricular mass (LVM) indexed by body surface area (BSA) (≥88 g/m) and by height (≥41 g/m), and RVH was defined as anterior right ventricular wall thickness >5.2 mm. The performance of ECG voltage criteria for the echocardiographic LVH and RVH were assessed by area under curve (AUC) of receiver operating characteristic (ROC) curve to estimate sensitivity and specificity.For the Sokolow-Lyon (the maximum of SV1 or SV2 + RV5 or RV6) and Cornell (RaVL + SV3) voltage criteria with the LVM/BSA ≥88 g/m, the AUC of ROC curves were 0.66 (95% confidence intervals [CI]: 0.52-0.81, P = .039) and 0.61 (95% CI: 0.44-0.77, P = .18), respectively. For these 2 ECG voltage criteria with the LVM/height ≥41 g/m, the AUC of ROC curves were 0.64 (95% CI: 0.52-0.75, P = 0.11) and 0.73 (95% CI: 0.61-0.85, P = 0.0074), respectively. The best cut-off points selected for the Sokolow-Lyon and Cornell voltage criteria with echocardiographic LVH in young Asian females were 26 mm and 6 mm, respectively. In contrast, all the AUC of ROC curves were less than 0.60 and not significant according to the Sokolow-Lyon (the maximum of RV1 + SV5 or V6) and Myers' voltage criteria (eg, the voltage of R wave in V1 and the ratios of R/S in V1, V5 and V6) with echocardiographic RVH.There was a suggestion that the ECG voltage criteria to screen the presence of LVH should be adjusted for the young Asian female adults, and with regard to RVH, the ECG voltage criteria were found ineffective.
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Affiliation(s)
- Fang-Ying Su
- Institute of Statistics, National Chiao Tung University, Hsinchu City
- Biotechnology R&D Center, National Taiwan University Hospital Hsinchu Branch, Hsinchu County
| | - Yen-Po Lin
- Department of Critical Care Medicine, Taipei Tzu Chi Hospital, New Taipei
| | - Felicia Lin
- Department of Internal Medicine, Hualien Armed Forces General Hospital, Hualien, Taiwan
| | - Yun-Shun Yu
- Department of Internal Medicine, Hualien Armed Forces General Hospital, Hualien, Taiwan
| | - Younghoon Kwon
- Department of Medicine, University of Washington, Seattle, WA
| | | | - Gen-Min Lin
- Department of Internal Medicine, Hualien Armed Forces General Hospital, Hualien, Taiwan
- Departments of Internal Medicine, Tri-Service General Hospital and National Defense Medical Center, Taipei, Taiwan
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL
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Lin GM, Lu HHS. A 12-Lead ECG-Based System With Physiological Parameters and Machine Learning to Identify Right Ventricular Hypertrophy in Young Adults. IEEE JOURNAL OF TRANSLATIONAL ENGINEERING IN HEALTH AND MEDICINE-JTEHM 2020; 8:1900510. [PMID: 32509473 PMCID: PMC7269457 DOI: 10.1109/jtehm.2020.2996370] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 05/07/2020] [Accepted: 05/14/2020] [Indexed: 12/21/2022]
Abstract
OBJECTIVE The presence of right ventricular hypertrophy (RVH) accounts for approximately 5-10% in young adults. The sensitivity estimated by commonly used 12-lead electrocardiographic (ECG) criteria for identifying the presence of RVH is under 20% in the general population. The aim of this study is to develop a 12-lead ECG system with the related information of age, body height and body weight via machine learning to increase the sensitivity and the precision for detecting RVH. METHOD In a sample of 1,701 males, aged 17-45 years, support vector machine is used for the training of 31 parameters including age, body height and body weight in addition to 28 ECG data such as axes, intervals and wave voltages as the inputs to link the output RVH. The RVH is defined on the echocardiographic finding for young males as right ventricular anterior wall thickness > 5.5 mm. RESULTS On the system goal for increasing sensitivity, the specificity is controlled around 70-75% and all data tested in the proposed method show competent sensitivity up to 70.3%. The values of area under curve of receiver operating characteristic curve and precision-recall curve using the proposed method are 0.780 and 0.285, respectively, which are better than 0.518 and 0.112 using the Sokolow-Lyon voltage criterion, respectively, for detecting unspecific RVH. CONCLUSION We present a method using simple physiological parameters with ECG data to effectively identify more than 70% of the RVH among young adults. Clinical Impact: This system provides a fast, precise and feasible diagnosis tool to screen RVH.
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Affiliation(s)
- Gen-Min Lin
- Department of Preventive MedicineFeinberg School of MedicineNorthwestern UniversityChicagoIL60611USA.,Department of MedicineHualien Armed Forces General HospitalHualien97144Taiwan.,Department of MedicineTri-Service General Hospital, National Defense Medical CenterTaipei11490Taiwan
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