关节炎包括大约 100 种影响关节和周围组织的病症。它是活动受限、残疾和慢性疼痛的主要原因，并且与阿片类药物处方有关，大大增加了医疗保健费用。对 2019-2021 年全国健康访谈调查数据进行合并分析，以更新全国自我报告诊断关节炎患病率估计。据估计，21.2%（年龄标准化为 18.7%）的 18 岁以上美国成年人（5320 万人）在此期间被诊断出关节炎。年龄标准化关节炎患病率女性（20.9%）高于男性（16.3%），退伍军人（24.2%）高于非退伍军人（18.5%），非西班牙裔白人（20.1%）高于西班牙裔或拉丁裔（14.7%）。 %）或非西班牙裔亚洲成年人（10.3%）。年龄≥45 岁的成年人占所有患有关节炎的美国成年人的 88.3%。患有慢性阻塞性肺疾病（COPD）（57.6%）、痴呆（55.9%）、残疾（54.8%）、中风（52.6%）、心脏病（51.5%）、糖尿病（43.1%）的成年人中未经调整的关节炎患病率很高），或癌症（43.1%）。大约一半患有慢性阻塞性肺病、痴呆、中风、心脏病、糖尿病或癌症的 65 岁以上成年人也被诊断为关节炎。这些患病率估计可用于指导公共卫生政策和活动，以增加在建筑环境中公平获得体育活动机会和其他适合关节炎的循证干预措施。

Arthritis includes approximately 100 conditions that affect the joints and surrounding tissues. It is a leading cause of activity limitations, disability, and chronic pain, and is associated with dispensed opioid prescriptions, substantially contributing to health care costs. Combined 2019-2021 National Health Interview Survey data were analyzed to update national prevalence estimates of self-reported diagnosed arthritis. An estimated 21.2% (18.7% age-standardized) of U.S. adults aged ≥18 years (53.2 million) had diagnosed arthritis during this time frame. Age-standardized arthritis prevalences were higher among women (20.9%) than men (16.3%), among veterans (24.2%) than nonveterans (18.5%), and among non-Hispanic White (20.1%) than among Hispanic or Latino (14.7%) or non-Hispanic Asian adults (10.3%). Adults aged ≥45 years represent 88.3% of all U.S. adults with arthritis. Unadjusted arthritis prevalence was high among adults with chronic obstructive pulmonary disease (COPD) (57.6%), dementia (55.9%), a disability (54.8%), stroke (52.6%), heart disease (51.5%), diabetes (43.1%), or cancer (43.1%). Approximately one half of adults aged ≥65 years with COPD, dementia, stroke, heart disease, diabetes, or cancer also had a diagnosis of arthritis. These prevalence estimates can be used to guide public health policies and activities to increase equitable access to physical activity opportunities within the built environment and other arthritis-appropriate, evidence-based interventions.