Gu Danan, Zhou Junshan, Yong Vanessa, Sautter Jessica, Saito Yasuhiko
Portland State University, Portland, USA.
J Appl Gerontol. 2013 Oct;32(7):876-88. doi: 10.1177/0733464812438634. Epub 2012 Mar 22.
We use a population-based longitudinal survey in China from 2002 to 2005 to examine age differentials in the association between severity of visual impairment and mortality risk in older adults. Controlling for numerous factors and baseline health, a substantial age difference is found. Young-old women and men aged 65 to 79 with severe visual impairments have 161% (hazard ratio = 2.61) and 52% (hazard ratio = 1.52) higher risk of death respectively as compared to their unimpaired counterparts. Mild impairment does not increase mortality risk among young-old adults, while both mild and severe impairment increase mortality risk by 33% and 32% for women and 24% and 34% for men among the oldest-old as a whole when all factors are controlled for. We conclude that visual impairment is an independent predictor of mortality and severe visual impairment likely plays a stronger role in determining mortality risk among young-old adults than among the oldest-old.
我们利用2002年至2005年在中国开展的一项基于人群的纵向调查，研究老年人视力损害严重程度与死亡风险之间关联的年龄差异。在控制了众多因素和基线健康状况后，发现了显著的年龄差异。与视力未受损的同龄人相比，患有严重视力损害的65至79岁的年轻老年人中，女性和男性的死亡风险分别高出161%（风险比=2.61）和52%（风险比=1.52）。轻度损害不会增加年轻老年人的死亡风险，而在控制所有因素后，对于最年长的老年人整体而言，轻度和重度损害分别使女性和男性的死亡风险增加33%和32%以及24%和34%。我们得出结论，视力损害是死亡的独立预测因素，严重视力损害在决定年轻老年人的死亡风险方面可能比在最年长的老年人中发挥更强的作用。
