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June 2022 in “Journal of The American Academy of Dermatology” Combining scalp photos with hair density and caliber measurements gives a more accurate assessment of hair loss.
September 2023 in “Journal of the American Academy of Dermatology” This study, examining perceptible hair density changes in androgenetic alopecia patients, found that dermatologists could accurately detect hair loss at a lower threshold than previously noted, specifically at a 22.66% relative density difference, challenging assumptions about their predictive accuracy based solely on clinical examination.
December 2022 in “JEADV Clinical Practice” In this study, researchers found that using a handheld digital microscope, hair diameter was a better determinant of perceived alopecia severity in androgenetic alopecia than hair density.
July 2022 in “Journal of Investigative Dermatology” This study suggests that distinct alopecia scoring systems measure percent hair loss as a common underlying feature, with strong correlations observed between different types of hair loss assessments.
September 2024 in “Journal of the American Academy of Dermatology” This study found that among 100 Caucasian patients with androgenetic alopecia, dermatologists could discern hair loss at thresholds significantly lower than the previously cited 50% reduction, highlighting the importance of using objective trichometric measurements to improve detection and personalized treatment strategies.