Junge T, et al. - In this cross-sectional population-based survey that included 2,056 Danish adults, researchers assessed the prevalence of self-reported generalized joint hypermobility (GJHk) and knee joint hypermobility (KJH), as well as the association of these conditions to knee joint symptoms, severity and duration of symptoms, and health-related quality of life (HRQoL). The total response rate was 49%, and the prevalence of self-reported GJHk and KJH was 13% and 23%. They noted that > 50% of respondents with GJHk and KJH had knee joint symptoms. They observed two times higher presentation of knee joint-related symptoms like pain, reduced performance of usual activity, and lower HRQoL among respondents with GJHk and KJH.