Wang Yuanlong, Luo Xinxin, Long Xiangyun, Shao Yuan, Zhang Song, Zhang Yingli, Wang Yongjun
School of Mental Health and Psychological Sciences, Anhui Medical University, Hefei, China.
Shenzhen Mental Health Centre, Shenzhen Kangning Hospital, Shenzhen, China.
Front Psychol. 2023 Jul 24;14:1228059. doi: 10.3389/fpsyg.2023.1228059. eCollection 2023.
Physical activity (PA) is known to improve physical functioning and mental health and to reduce the incidence of dementia. However, studies of the effects of non-recreational PA on the incidence of dementia, especially in East Asian populations, remain limited. In this study, we evaluate the association of doing housework with the risk of dementia among participants in the Chinese Longitudinal Healthy Longevity Survey (CLHLS).
The analysis was conducted with data from 7,237 CLHLS participants age over 65 obtained in 2008/2009, 2011/2012, 2014, and 2018. The frequency of housework performance was classified into four groups. A Cox proportional-hazards model was used to examine the association of the baseline housework frequency with the incidence of dementia, with adjustment for demographic and socioeconomic characteristics and lifestyle and health conditions.
The adjusted multivariate model showed that the incidence of dementia was lower among participants who did housework almost every day than among those who rarely or never did housework (hazard ratio = 0.49; 95% confidence interval, 0.39-0.61). The subgroup and sensitivity analyses yielded similar results.
A high frequency of housework performance was associated with a reduced incidence of dementia among older Chinese adults, especially those who did not exercise regularly. The encouragement of engagement in housework would be a cost-effective measure promoting healthy aging in the Chinese population.
已知身体活动（PA）可改善身体机能和心理健康，并降低痴呆症的发病率。然而，关于非娱乐性身体活动对痴呆症发病率影响的研究仍然有限，尤其是在东亚人群中。在本研究中，我们评估了中国老年健康长寿纵向调查（CLHLS）参与者中做家务与痴呆症风险之间的关联。
分析使用了2008/2009年、2011/2012年、2014年和2018年获得的7237名年龄在65岁以上的CLHLS参与者的数据。家务劳动的频率分为四组。采用Cox比例风险模型来检验基线家务劳动频率与痴呆症发病率之间的关联，并对人口统计学和社会经济特征以及生活方式和健康状况进行了调整。
调整后的多变量模型显示，几乎每天做家务的参与者中痴呆症的发病率低于很少或从不做家务的参与者（风险比=0.49；95%置信区间，0.39 - 0.61）。亚组分析和敏感性分析得出了相似的结果。
高频率的家务劳动与中国老年人痴呆症发病率的降低有关，尤其是那些不经常锻炼的老年人。鼓励参与家务劳动将是促进中国人群健康老龄化的一项具有成本效益的措施。
