ArticleBMC psychiatry2026
Clinical cut scores for the Farsi version of the Level of Personality Functioning Scale-Self-Report (LPFS-SR).
Article in BMC psychiatry, 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
backgroundThe Level of Personality Functioning Scale—Self-Report (LPFS-SR) requires culturally-validated cut-off scores to ensure its utility in diverse populations. This study aimed to establish clinical thresholds and reference data for the Farsi LPFS-SR to effectively distinguish clinical personality dysfunction from nonclinical functioning in Iran.
methodsWe analyzed data from distinct clinical (n = 374 interview-diagnosed inpatients, 22% female, mean age 28.3 ± 6.9 years) and nonclinical (n = 1,119 community participants, 60% female, mean age 28.3 ± 8.1 years) samples across western Iran. Optimal cut-off scores were determined using Receiver Operating Characteristic (ROC) analysis.
resultsThe Global LPFS-SR demonstrated excellent capacity to discriminate the clinical from the nonclinical group. The optimal clinical cut-off score for the Global LPFS-SR was determined to be 283. Gender-specific analyses revealed high diagnostic accuracy in both groups (female AUCs = 0.88–0.91; male AUCs = 0.85–0.87).
conclusionThis study provides the preliminary empirically-derived clinical cut-off scores and comprehensive reference data for the Farsi LPFS-SR. This threshold enables reliable and efficient screening for the severity of personality pathology in Iranian clinical and research settings, supporting the localized application of the Alternative Model for Personality Disorders (AMPD). CLINICAL TRIAL NUMBER : Not applicable.
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