Palmore E B, Nowlin J B, Wang H S
J Gerontol. 1985 Mar;40(2):244-50. doi: 10.1093/geronj/40.2.244.
A 10-year follow-up of 297 survivors from a community study of the aged found there was little or no decline in social and economic function and only moderate declines in mental, physical, and activities-of-daily-living function; demographic and socioeconomic characteristics were usually strong predictors of decline in function; and impairment in one type of function often predicted greater decline in other types of function. Mental impairment was an especially strong predictor of social decline, but not vice versa.
一项针对老年人群体社区研究中297名幸存者的10年随访发现，社会和经济功能几乎没有或没有下降，心理、身体和日常生活功能仅适度下降；人口统计学和社会经济特征通常是功能下降的有力预测因素；一种功能的损害往往预示着其他类型功能的更大下降。心理损害是社会功能下降的一个特别有力的预测因素，但反之则不然。
