https://www.sciencedirect.com/science/article/pii/S0094730X24000500#:~:text=Adult%20stuttering%20prevalence%20was%20estimated,1%25%20engage%20with%20stuttering%20communities. Highlights • Adult who stutter comprise 0.96% of the general population (95% CI 0.65, 1.44) • 0.63% stutter overtly (95% CI 0.46, 0.79), onset was 0.53% as children, 0.10% as adults • 0.33% stutter covertly (95% CI 0.19, 0.58), onset was 0.28% as children, 0.05% as adults • Covert stuttering will have been overestimated, and may often be very mild • Of adults who stutter, fewer than 1% engage with stuttering communities