The Health, Physical Functioning, and Informal Supports of the Black Elderly
研究利用两项调查的横截面数据，描述不同年龄段黑人老年人在健康、身体功能和社会网络方面的异质性，发现年龄与这些因素的关系可能非线性，并支持高龄时种族“交叉”现象的存在。
Among the elderly population, blacks are increasing more rapidly--and perhaps differently--than whites. Cross-sectional data from two unique surveys describe their heterogeneity in health, physical functioning, and social networks at "younger," middle, and "older" ages. The relation between age and these factors may be nonlinear; indeed, evidence supports the contention of a racial "crossover" at advanced ages. Life experiences--ecological, social, economic, and familial--of successive cohorts are likely to pose different problems for elderly blacks in the future. Further research into these differences should inform public policy.