Abstract
Studies reporting trends and disparities of osteoarthritis (OA) in the United States are limited. We aimed to examine trends and disparities of OA prevalence among US adults, from 2005 to 2018. Continuous National Health and Nutrition Examination Survey (NHANES) data from 2005–2006 to 2017–2018 were analyzed. Age-adjusted and self-reported OA prevalence, stratified by race/ethnicity and socioeconomic status (SES), was calculated separately for men and women. The linear trend and the association between the survey cycles and OA prevalence were assessed. Age-adjusted and self-reported OA prevalence linearly increased in the seven survey cycles (both Plinear trend ≤ 0.0002) in men and women. Non-Hispanic Caucasians (both Plinear trend ≤ 0.0001) in both genders and Non-Hispanic African Americans women (Plinear trend ≤ 0.0001) had significantly increasing linear trends in OA prevalence. In addition, people with lower SES had a lower age-adjusted prevalence of self-reported OA when compared to those with higher SES. The increasing linear trends still existed among both men and women after adjusting for multiple confounders (both Plinear trend ≤ 0.002). There were significant rising trends and disparities in self-reported OA prevalence among US men and women between 2005 and 2018.
Highlights
Studies reporting trends and disparities of osteoarthritis (OA) in the United States are limited
Another study suggested that Non-Hispanic African Americans had significantly greater knee OA odds than Non-Hispanic Caucasians during 1991–19949
The percentage of people having less than a high school diploma decreased during 2005–2018, while the percentage of participants who graduated from college or above increased
Summary
Studies reporting trends and disparities of osteoarthritis (OA) in the United States are limited. We aimed to examine trends and disparities of OA prevalence among US adults, from 2005 to 2018. Age-adjusted and self-reported OA prevalence, stratified by race/ethnicity and socioeconomic status (SES), was calculated separately for men and women. Age-adjusted and self-reported OA prevalence linearly increased in the seven survey cycles (both Plinear trend ≤ 0.0002) in men and women. There were significant rising trends and disparities in self-reported OA prevalence among US men and women between 2005 and 2018. We aimed to examine the trend of OA prevalence in men and women and within race/ethnicity and SES groups from 2005 to 2018. Our study included new data after 2014, but we examined sexspecific trends in OA prevalence during 2005–2018, after adjusting for race, SES, and related risk factors. Our findings will provide a more comprehensive understanding of recent OA trends and disparities in US adults
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