Three-Decade Trends and Future Projections of Malignant Skin Melanoma Burden in the United States and Globally

OBJECTIVES: Malignant melanoma, although less frequent than other skin cancers, accounts for most skin cancer deaths due to its aggressive and metastatic nature. Despite therapeutic progress, its global distribution remains uneven. Comparative analyses of United States and worldwide melanoma trends, particularly by sex, are limited. METHODS: We analyzed melanoma incidence, prevalence, and mortality from 1990 to 2023 using Global Burden of Disease (GBD) 2023 data. Age-standardized rates per 100,000 population were obtained for the United States and globally. Temporal patterns were examined using joinpoint regression to estimate annual percent change (APC) and average annual percent change (AAPC) with 95% CIs. Pairwise tests compared US and global trajectories. Future mortality was projected through 2050 using autoregressive integrated moving average (ARIMA) modeling. RESULTS: From 1990 to 2023, US age-standardized mortality declined by 28% (2.38 to 1.72 per 100,000; AAPC: -0.96*; 95% CI: -1.21 to -0.71), whereas global mortality decreased modestly (0.82 to 0.74; AAPC: -0.29*; 95% CI: -0.46 to -0.12). US incidence declined (AAPC: -0.41*; 95% CI: -0.65 to -0.16), contrasting with a global rise (AAPC: 0.54*; 95% CI: 0.38 to 0.70). Prevalence fell in the United States (AAPC: -0.39*; 95% CI: -0.62 to -0.16) but increased globally (AAPC: 0.80*; 95% CI: 0.55 to 1.04). Males consistently exhibited higher incidence and mortality than females. All pairwise comparisons between US and global trajectories were significant (P