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All Journal Jurnal Biometrika dan Kependudukan (Journal of Biometrics and Population)
Mochammad Bagus Qomaruddin
Faculty of Public Health, Universitas Airlangga, 60115 Surabaya, East Java, Indonesia

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MODEL FOR PREDICTING PREVENTIVE BEHAVIOR AGAINST HYPERTENSION AMONG ISLAMIC STUDENTS USING MACHINE LEARNING APPROACH Ida Srisurani Wiji Astuti; Kuntoro Kuntoro; Mochammad Bagus Qomaruddin; Krish Naufal Anugrah Robby
Jurnal Biometrika dan Kependudukan Vol. 15 No. 1 (2026): JURNAL BIOMETRIKA DAN KEPENDUDUKAN
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jbk.v15i1.2026.33-43

Abstract

The prevalence of hypertension is currently increasing among adolescents. Despite numerous efforts to improve hypertension prevention, there are still limited approaches capable of accurately predicting hypertension prevention behaviors. Machine learning is needed to develop predictive models that can identify key predictors. This study aimed to develop and evaluate a machine learning model for predicting hypertension prevention behaviors among students in Islamic boarding schools. A cross-sectional design was employed in this study. Primary quantitative data were collected through validated questionnaires from 378 students, aged 15–18 years at three Islamic boarding schools in Jember, Indonesia. The data were analyzed using a machine learning approach involving data preprocessing, selection of indicator variables, and division of the dataset into training and testing datasets to develop and evaluate a predictive model of hypertension prevention behavior. The results showed that the machine learning–based predictive model of hypertension prevention behavior performed well, achieving an area under the curve (AUC) of 0.72, an accuracy of 95%, and a precision of 70%. The model identified competence, autonomy, and subjective norms as the main predictors and adequately distinguished between students with good and poor hypertension prevention behaviors. The machine learning approach performs better by providing a preprocessing phase, comprehensive model performance evaluation metrics, and new or previously unseen data to assess the model's generalizability. Future studies should extend the study to various settings and populations to improve generalizability. The predictive model can be used to predict hypertension prevention behavior using a number of independent variables.
THE INFLUENCE OF SPIRITUAL INTELLIGENCE ON COPING EFFORTS: THE MEDIATING ROLE OF COGNITIVE APPRAISAL AMONG PATIENTS WITH TYPE 2 DIABETES MELLITUS Kun Ika Nur Rahayu; Chatarina Umbul Wahyuni; Mochammad Bagus Qomaruddin; Muhammad Atoillah Isfandiari
Jurnal Biometrika dan Kependudukan Vol. 15 No. 1 (2026): JURNAL BIOMETRIKA DAN KEPENDUDUKAN
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jbk.v15i1.2026.74-85

Abstract

Diabetes mellitus requires lifelong treatment and imposes persistent psychological stress on patients. Spiritual intelligence (has been recognized as a psychological resource that promotes resilience and adaptation; however, the role of cognitive appraisal as a mechanism linking spiritual intelligence to coping remains unclear. This study aimed to examine the mediating role of cognitive appraisal in the relationship between spiritual intelligence and coping among patients with type 2 diabetes mellitus. A cross-sectional study was conducted among 300 patients with type 2 diabetes mellitus aged 30–50 years in Kediri, Indonesia. Data were collected using the Spiritual Intelligence Self-Report Inventory (SISRI-24), the Primary Appraisal Secondary Appraisal (PASA) scale, and the Brief COPE questionnaire. Path analysis with bootstrapping was performed to examine the mediating role of cognitive appraisal. Spiritual intelligence significantly predicted cognitive appraisal (β = 0.819, p < 0.001) and coping (β = 0.335, p < 0.001). Cognitive appraisal also positively predicted coping  (β = 0.425, p < 0.001) and partially mediated the relationship between spiritual intelligence and coping, accounting for 40.28% of the total effect. The model explained 31.7% of the variance in cognitive appraisal and 45.3% of the variance in coping. These findings suggest that interventions integrating spiritual intelligence and psychological dimensions by enhancing spiritual intelligence and strengthening cognitive appraisal may improve coping capacity, treatment adherence, and long-term self-management among patients with type 2 diabetes mellitus. Future longitudinal studies are recommended to establish causal relationships and investigate demographic and clinical factors that may moderate these associations.
Co-Authors Chatarina Umbul Wahyuni Ida Srisurani Wiji Astuti Krish Naufal Anugrah Robby Kun Ika Nur Rahayu Kuntoro Kuntoro Muhammad Atoillah Isfandiari