Wayne State University, Detroit, MI, USA.
Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA.
J Aging Health. 2020 Aug-Sep;32(7-8):807-816. doi: 10.1177/0898264319853138. Epub 2019 Jun 5.
The objective of study is to examine the relationships between health status and changes in cognition over time among middle to older aged Blacks. Data come from the Baltimore Study of Black Aging-Patterns of Cognitive Aging. At baseline, 602 Black participants, ranging from ages 48 to 95 years, were enrolled. At follow-up, approximately 3 years later, 450 participants were re-interviewed. After accounting for baseline cognition, age, sex, and education, a greater number of health conditions was associated with slower perceptual speed ( = -5.099, = .022). Average peak expiratory flow was also associated with improvements in working memory ( = 0.029, = .019) and perceptual speed ( = 0.026, = .026), controlling for model covariates. Study findings demonstrate that greater disease burden is associated with declines in specific fluid cognitive abilities in middle to later life among Blacks. This finding highlights the importance of reducing health disparities that disproportionately affect Blacks.
研究目的在于探究健康状况与中年及老年黑人认知能力随时间变化之间的关系。数据来自巴尔的摩黑人老龄化研究——认知老化模式。在基线时，招募了 602 名年龄在 48 至 95 岁之间的黑人参与者。大约 3 年后的随访中，对 450 名参与者进行了重新访谈。在考虑了基线认知、年龄、性别和教育因素后，更多的健康状况与较慢的知觉速度有关（= -5.099，=.022）。平均呼气峰值流量也与工作记忆（= 0.029，=.019）和知觉速度（= 0.026，=.026）的改善有关，这是在控制模型协变量的情况下得出的。研究结果表明，在中年至后期生活中，黑人的疾病负担越大，特定的流体认知能力下降得越快。这一发现强调了减少不成比例地影响黑人的健康差距的重要性。
