Ikeda T, et al. - Researchers examined the relationships between socioeconomic status (SES) and knee pain. In addition, they assessed how the relationships between SES and knee pain are influenced by depression. A survey was conducted across 30 Japanese municipalities and collected cross-sectional data of 26,037 functionally independent, community-dwelling adults aged 65 years or above. The study population had 1-year prevalence of knee pain of 56.0%. The analysis suggests a significant association of income levels with knee pain: the tendency to experience knee pain was higher in correlation with the lowest income level vs the highest income level. In females and males, depression explained 36.8% and 41.9% of the association of income with knee pain, respectively.