Introduction multimorbidity has become an increasingly important issue for many populations around the world, including Canada. The objectives of this study were to estimate the prevalence of multimorbidity at first follow-up and to identify factors associated with multimorbidity using data from the Canadian Longitudinal Study on Aging (CLSA). Methods this study included 27,701 community-dwelling participants in the first follow-up of the CLSA. Multimorbidity was operationalised using two definitions (Public Health and Primary Care), as well as the cut-points of two or more chronic conditions (MM2+) and three or more chronic conditions (MM3+). The prevalence of multimorbidity was calculated at first follow-up and multivariable regression models were used to identify correlates of multimorbidity occurrence. Results the prevalence of multimorbidity at first follow-up was 32.3% among males and 39.3% among females when using the MM2+ Public Health definition, whereas the prevalence was 67.2% among males and 75.8% among females when using the MM2+ Primary Care definition. Older age, lower alcohol consumption, lower physical activity levels, dissatisfaction with sleep quality, dissatisfaction with life and experiencing social limitations due to health conditions were significantly associated with increased odds of multimorbidity for both males and females, regardless of the definition of multimorbidity used. Conclusion various sociodemographic, behavioural and psychosocial factors are associated with multimorbidity. Future research should continue to examine how the prevalence of multimorbidity changes with time and how these changes may be related to specific risk factors. This future research should be supplemented with studies examining the longitudinal impacts of multimorbidity over time.

中文翻译：

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检查居住在社区的老年人中多种疾病的患病率和相关性：来自加拿大老龄化纵向研究 (CLSA) 首次随访数据的横断面证据

对于包括加拿大在内的世界各地的许多人来说，多病症已成为一个越来越重要的问题。本研究的目的是使用来自加拿大老龄化纵向研究 (CLSA) 的数据来估计首次随访时合并症的患病率，并确定与合并症相关的因素。方法 本研究包括 27,701 名社区居民参与 CLSA 的第一次跟进。使用两个定义（公共卫生和初级保健）以及两种或多种慢性病 (MM2+) 和三种或多种慢性病 (MM3+) 的切点来实施多重发病。在第一次随访时计算了多病症的患病率，并使用多变量回归模型来确定多病症发生的相关因素。结果 当使用 MM2+ 公共卫生定义时，第一次随访时多重疾病的患病率在男性中为 32.3%，在女性中为 39.3%，而在使用 MM2+ 初级保健定义时，男性中的患病率为 67.2%，在女性中为 75.8%。年龄较大、饮酒量较低、体力活动水平较低、对睡眠质量不满意、对生活不满意以及因健康状况而受到社会限制与男性和女性的多重病症几率增加显着相关，无论使用的多重病症定义如何。结论 各种社会人口学、行为和社会心理因素与多发病有关。未来的研究应继续研究多种疾病的患病率如何随时间变化，以及这些变化如何与特定风险因素相关。这项未来的研究应该辅之以研究多种疾病随时间的纵向影响的研究。