Prevalence of mental disorders in people with intellectual disabilities across the lifespan: umbrella review. - Santambrogio, Jacopo; Boido, Giovanni; Marchetti, Mattia; Rudra, Sonya; Besana, Filippo; Francia, Emma; Terrevazzi, Sergio; Papola, Davide; Barbui, Corrado; Bertelli, Marco; Clerici, Massimo; D'Agostino, Armando; et al. (BJPsych Open, 2026)