Development and Validation of a Prediction Model for Severe Male Pattern Baldness in Turkish Male Population Aged 50 Years and Older

Background/Objectives: Male pattern baldness (MPB) is a complex polygenic trait influenced by genetic and non-genetic factors, with susceptibility loci on both autosomal and X chromosomes. This study aimed to develop an exploratory genetic model for distinguishing no baldness (Hamilton–Norwood [HN] grade 1) from severe baldness (HN grades 5–7) in Turkish men aged 50 years and older.