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A Cross-Lagged Model of the Reciprocal Associations of Loneliness and Memory Functioning

机译：孤独与记忆功能的相互联系的交叉滞后模型

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The study was designed to evaluate the reciprocal associations of loneliness and memory functioning using a cross-lagged model. The study was based on the psychosocial questionnaire of the Health and Retirement Study, which is a U.S. nationally representative survey of individuals over the age of 50 and their spouses of any age. A total of 1,225 respondents had complete data on the loneliness measure in 2004 and at least in 1 of the subsequent waves (e.g., 2008, 2012) and were maintained for analysis. A cross-lagged model was estimated to examine the reciprocal associations of loneliness and memory functioning, controlling for age, gender, education, depressive symptoms, number of medical conditions, and the number of close social relationships. The model had adequate fit indices: chi(2)(860, N = 1,225) = 1,401.54, p <.001, Tucker-Lewis index =.957, comparative fit index =.963, and root mean square error of approximation =.023 (90% confidence interval [. 021, .025]). The lagged effect of loneliness on memory functioning was nonsignificant, B(SE) = -.11(. 08), p =.15, whereas the lagged effect of memory functioning on loneliness was significant, B(SE) = -.06(. 02), p =.01, indicating that lower levels of memory functioning precede higher levels of loneliness 4 years afterward. Further research is required to better understand the mechanisms responsible for the temporal association between reduced memory functioning and increased loneliness.
机译：这项研究旨在使用交叉滞后模型评估孤独感与记忆功能的相互关系。该研究基于《健康与退休研究》的社会心理问卷，该问卷是美国全国范围内对50岁以上的个人及其任何年龄的配偶进行的调查。共有1,225名受访者在2004年以及至少在随后的1次浪潮中（例如2008年，2012年）拥有关于孤独感测度的完整数据，并进行了分析。估计交叉滞后模型可以检查孤独与记忆功能的相互关系，控制年龄，性别，教育程度，抑郁症状，医疗状况和亲密社会关系的数量。该模型具有足够的拟合指数：chi（2）（860，N = 1,225）= 1,401.54，p <.001，Tucker-Lewis指数= .957，比较拟合指数= .963，均方根近似值=。 023（90％置信区间[.021，.025]）。孤独对记忆功能的滞后影响不显着，B（SE）= -.11（。08），p = .15，而记忆功能对孤独的滞后影响显着，B（SE）= -.06（ （02），p = .01，表明较低水平的记忆功能先于较高水平的孤独感发生4年。需要进一步研究以更好地理解造成记忆功能降低和孤独感增强之间时间相关的机制。

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