OBJECTIVE Subjective memory complaints (SMCs) are associated with mild cognitive impairment and dementia but are understudied in African Americans (AAs). We compared SMC endorsement in white and AA participants and evaluated predictors of diagnostic progression. METHODS Initial visit variables, including SMC and memory performance, were compared within a cognitively normal race-matched sample of white and AA participants (N total = 912; 456each race) to assess the presence and predictors of SMC, the predictors of future diagnostic progression, and the change in memory performance over time. RESULTS More white (32.9%) than AA (24.3%) participants reported SMC (P < .01, ϕ = -.10). Subjective memory complaint was predicted by memory performance (B = -0.03, standard error [SE] = 0.013, odds ratio [OR] = .968, P < .05) and race (B = -0.99, SE = 0.080, OR = .373, P < .001). Subjective memory complaints and memory performance were associated with progression, χ2 (3, n = 912) = 102.37, P < .001. African American race (-2.05 ± 0.24 SE) and SMC (-0.45 ± 0.21 SE) were associated with worse memory performance at baseline and over time, χ 2(3) = 13.54, P < .01. CONCLUSIONS In contrast to previous research, our study found that SMC is associated with diagnostic progression and objective memory declines in both white and AA participants.

中文翻译：

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白人和非裔美国人参与者的主观记忆投诉。

目的 主观记忆抱怨 (SMC) 与轻度认知障碍和痴呆有关，但在非裔美国人 (AA) 中未得到充分研究。我们比较了白人和 AA 参与者对 SMC 的认可，并评估了诊断进展的预测因子。方法 在白人和 AA 参与者（总人数 = 912；每个种族 456 人）的认知正常种族匹配样本中比较初始访问变量，包括 SMC 和记忆表现，以评估 SMC 的存在和预测因素，即未来诊断进展的预测因素，以及内存性能随时间的变化。结果 报告 SMC 的白人 (32.9%) 多于 AA (24.3%) 参与者 (P < .01, ϕ = -.10)。主观记忆投诉由记忆表现（B = -0.03，标准误差 [SE] = 0.013，比值比 [OR] = .968，P < .05）和种族（B = -0.99，SE = 0.080，OR = .373，P < .001）。主观记忆抱怨和记忆表现与进展相关，χ2 (3, n = 912) = 102.37，P < .001。非裔美国人种族 (-2.05 ± 0.24 SE) 和 SMC (-0.45 ± 0.21 SE) 与基线和随时间推移的较差记忆力表现相关，χ 2(3) = 13.54，P < .01。结论 与之前的研究相反，我们的研究发现，SMC 与白人和 AA 参与者的诊断进展和客观记忆力下降有关。