Sörman Daniel Eriksson, Sundström Anna, Rönnlund Michael, Adolfsson Rolf, Nilsson Lars-Göran
Department of Psychology,
Department of Psychology, Centre for Population Studies/Ageing and Living Conditions, and.
J Gerontol B Psychol Sci Soc Sci. 2014 Jul;69(4):493-501. doi: 10.1093/geronb/gbt056. Epub 2013 Jun 13.
The aim of this study was to investigate whether leisure activity is associated with incident dementia in an older sample.
We examined a sample of 1,475 elderly (≥ 65 years) who were dementia free at baseline over a follow-up period of up to 15 years. In addition to analyses involving the total time period, separate analyses of three time periods were performed, 1-5, 6-10, and 11-15 years, following baseline measurement of leisure activity.
After controlling for a variety of potential confounders, analyses of data for the total time period revealed that higher levels of "Total activity" and "Social activity," but not "Mental activity," were associated with decreased risk of dementia. However, analyses of the separate time periods showed that this association was only significant in the first time period, 1-5 years after baseline.
The results from this study provide little support for the hypothesis that frequent engagement in leisure activities among elderly serve to protect against dementia diseases across a longer time frame. The finding of a relationship for the first time period, 1-5 years after baseline, could indicate short-term protective effects but could also reflect reverse causality.
本研究旨在调查在老年样本中休闲活动是否与痴呆症的发病有关。
我们对1475名65岁及以上的老年人进行了研究，这些老年人在基线时无痴呆症，随访期长达15年。除了对整个时间段进行分析外，在对休闲活动进行基线测量后，还对三个时间段（1 - 5年、6 - 10年和11 - 15年）分别进行了分析。
在控制了各种潜在混杂因素后，对整个时间段的数据进行分析发现，“总活动量”和“社交活动”水平较高，但“脑力活动”水平与痴呆症风险降低相关。然而，对各个时间段的分析表明，这种关联仅在基线后的第一个时间段（1 - 5年）显著。
本研究结果几乎没有支持这样的假设，即老年人频繁参与休闲活动在较长时间内可预防痴呆症。在基线后1 - 5年的第一个时间段发现的这种关系，可能表明短期保护作用，但也可能反映了反向因果关系。
