Rheumatoid arthritis (RA) is a chronic inflammatory and destructive arthritis. Understanding the incidence and prevalence of RA within the province facilitates appropriate health care resource planning. To estimate the incidence/prevalence of RA over time for the overall provincial population, for specific age range categories, and for gender. Saskatchewan Provincial Administrative Health Databases (2001–2014) were utilized as data sources. Two RA case-definitions were employed: 1) > three physician billing diagnoses, at least one of which was submitted by a specialist (rheumatologist, general internist or orthopedic surgeon) within 2 years; 2) > one hospitalization diagnosis (ICD-9-CM code-714, and ICD-10-CA code-M05). Data from these definitions were combined to identify incident and prevalent RA cases. Using this data, annual incidence and prevalence rates were calculated for the provincial population, specified age range categories and gender categories. The number of RA cases meeting the case definition increased from 3731 to 6223 over the study period. The incidence of RA disease demonstrated variation within the study period with age and sex adjusted incidence ranging from 33.6 (95% CI 29.9–37.6) per 100,000 to 73.1 (95% CI 67.6–79.0) per 100,000. The prevalence of RA increased over time from 482 (95% CI 466.7–497.7) per 100,000 in 2001–2002 to 683.4 (95% CI 666.6–700.6) per 100,000 in 2014–2015. Both incidence and prevalence rates rose with increasing age. Women were found to have higher incidence and prevalence rates compared to men. In Saskatchewan, the overall prevalence of RA is rising while there has been variability in the incidence.

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加拿大萨斯喀彻温省类风湿关节炎的发病率和患病率：2001-2014

类风湿性关节炎（RA）是一种慢性炎症性和破坏性关节炎。了解省内 RA 的发病率和患病率有助于适当的医疗保健资源规划。估计整个省人口、特定年龄范围类别和性别的 RA 发病率/患病率。萨斯喀彻温省行政​​卫生数据库（2001-2014）被用作数据源。使用了两个 RA 病例定义：1) > 三个医生账单诊断，其中至少一个是由专家（风湿病学家、普通内科医生或整形外科医生）在 2 年内提交的；2) > 1次住院诊断（ICD-9-CM code-714，ICD-10-CA code-M05）。来自这些定义的数据被合并以确定事件和流行的 RA 病例。使用这些数据，计算了省级人口、特定年龄范围类别和性别类别的年发病率和流行率。在研究期间，符合病例定义的 RA 病例数从 3731 增加到 6223。研究期间，RA 疾病的发病率随年龄和性别调整后的发病率变化，从每 100,000 人 33.6 (95% CI 29.9–37.6) 到每 100,000 人 73.1 (95% CI 67.6–79.0) 不等。随着时间的推移，RA 的患病率从 2001-2002 年的每 100,000 人 482 (95% CI 466.7–497.7) 增加到 2014-2015 年的每 100,000 人 683.4 (95% CI 666.6–700.6)。发病率和患病率都随着年龄的增长而上升。与男性相比，女性的发病率和患病率更高。在萨斯喀彻温省，RA 的总体患病率正在上升，而发病率却存在差异。