Effects of social integration on preserving memory function in a nationally representative US elderly population
Effects of social integration on preserving memory function in a nationally representative US elderly population
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DOI：
10.2105/ajph.2007.113654
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发表时间：
2008-07-01
影响因子：
12.7
通讯作者：
Berkman, Lisa F.
中科院分区：
文献类型：
--
作者：
Ertel, Karen A.;Glymour, M. Maria;Berkman, Lisa F.
目标。我们在一个具有全国代表性的美国老年人样本中测试了社会整合是否可以防止晚年的记忆丧失和其他认知障碍，是否在弱势个体中效果更强，以及早期的认知丧失是否解释了这种关联（反向因果关系）。使用来自健康与退休研究（N=16638）的数据，我们检验了社会整合是否能预测6年内的记忆变化。记忆力是通过立即和延迟回忆10个单词的列表来衡量的。社会融合通过婚姻状况、志愿者活动、与孩子、父母和邻居接触的频率来评估。我们检查了整个样本和子组内的生长曲线模型。平均记忆分数从1998年的11.0分下降到2004年的10.0分。在完全调整的模型中，较高的社会整合基线预示着较慢的记忆衰退
Objectives. We tested whether social integration protects against memory loss and other cognitive disorders in late life in a nationally representative US sample of elderly adults, whether effects were stronger among disadvantaged individuals, and whether earlier cognitive losses explained the association (reverse causation).Methods. Using data from the Health and Retirement Study (N=16638), we examined whether social integration predicted memory change over 6 years. Memory was measured by immediate and delayed recall of a 10-word list. Social integration was assessed by marital status, volunteer activity, and frequency of contact with children, parents, and neighbors. We examined growth-curve models for the whole sample and within subgroups.Results. The mean memory score declined from 11.0 in 1998 to 10.0 in 2004. Higher baseline social integration predicted slower memory decline in fully adjusted models (P