ArticleThe Libyan journal of medicine2026
Diagnostic outcomes of the 2023 race-neutral and 2012 race-specific global lung function initiative spirometry equations in healthy Algerian adults: a cross-sectional comparative analysis.
Article in The Libyan journal of medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
In 2023, the Global Lung Function Initiative (GLI) introduced race-neutral spirometric reference equations (2023-GLI-RNEs) to address concerns of racial bias inherent in earlier 2012-GLI race-specific models. While the 2012-GLI Caucasian equations (2012-GLI-CEs) were previously identified to reflect contemporary adults' Algerian spirometry, the 2023-GLI-RNEs applicability remains untested. This study aimed to compare the diagnostic outcomes of the 2023-GLI-RNEs and the 2012-GLI-CEs in a healthy adult Algerian population. A cross-sectional study was conducted on 488 Algerian healthy adults (49.6% female) aged 18-85 years. Participants underwent standardized plethysmography/spirometry in accordance with the most updated international guidelines. Z-scores and percent predicted values for FEV₁, FVC, and FEV₁/FVC ratio were computed using both 2012-GLI-CEs and 2023-GLI-RNEs. Diagnostic classifications (e.g. normal pattern, obstructive ventilatory impairment (OVI), non-specific ventilatory impairment (NSVI), or spirometric restrictive pattern (SRP), isolated low FEV
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