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Contact Name
Iwan Desimal
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mohr.publine@gmail.com
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+6281882840231
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INDONESIA
Media of Health Research
ISSN : 29877784     EISSN : 29877784     DOI : https://doi.org/10.70716/mohr.v1i3
Core Subject : Health,
Media of Health Research (MOHR) is a national periodical journal which contains research articles in health sector. MOHR journal are expected to be a medium for conveying scientific findings and innovations in the health sector for those in the health sector, both those engaged in the health sector. MOHR journal is published by Lembaga Publikasi Ilmiah Nusantara (PUBLINE Institute) with online version of e-ISSN: 2987-7784. MOHR aims to facilitate researchers, especially in the field of health to disseminate the results of his research. And disseminate knowledge to build new knowledge to the general public in order to improve self-professionalism and responsibility for national education.
Articles 51 Documents
Assessment of Spirometric Interpretation Methods: A Comparison between Percent Predicted and GLI 2012 among Workers in the Silver Industry Helmy, Helina; Indarwati, Suami; Fikri, Ahkmad; Gultom, Tati Baina; Sutopo, Agus
Media of Health Research Vol. 4 No. 1 (2026): Media of Health Research, February 2026
Publisher : Lembaga Publikasi Ilmiah Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70716/mohr.v4i1.467

Abstract

Background: Occupational exposure to fine particulate matter (PM₂.₅) in small-scale silver industries increases the risk of respiratory impairment. Spirometry is widely used to assess lung function, but differences in interpretation methods may affect diagnostic accuracy. The conventional percent predicted (%Pred) method is still commonly applied, although the Global Lung Function Initiative (GLI) 2012 recommends a Z-score–based approach. Objective: This study compared lung function classification using the %Pred method and the GLI 2012 Z-score approach among silver industry workers. Methods: This analytical cross-sectional study involved 33 workers from large-scale and home-based silver industries. Spirometry measured forced expiratory volume in one second (FEV₁), forced vital capacity (FVC), and FEV₁/FVC ratio. Lung function was classified using both %Pred and GLI 2012 methods. Differences and agreement were analyzed using the McNemar test and Cohen’s Kappa. Results: The GLI 2012 method detected a higher proportion of restrictive impairment (36.4%) than the %Pred method (21.2%). Six workers (18.2%) were reclassified from normal (%Pred) to abnormal (GLI). A significant difference was found between methods (p = 0.041), with moderate agreement (κ = 0.586). No obstructive pattern was identified. Conclusion: The GLI 2012 Z-score method is more sensitive in detecting restrictive lung impairment than the %Pred approach. The %Pred method may underestimate abnormalities. Adoption of GLI-based interpretation can improve accuracy in occupational respiratory assessment.