The association of cognitive impairment with abnormal levels of serum lipid/lipoprotein in the elderly, in whom there are differences between the old aged 65–84 years and the oldest old aged 85 years or above, has been confirmed by previous studies. However, there are no relevant data from a Chinese oldest old population. In the present study, we observed an association of cognitive impairment with abnormal levels of serum lipid/lipoprotein among very old people using a Chinese cohort aged 90–108 years. The population included 709 unrelated Chinese nonagenarians and centenarians (67.8% women, mean age 93.8 years). The mean score of cognitive function (measured with the 30-item Mini-Mental State Examination, MMSE) was 14.9 (SD 6.0). Comparing abnormal with normal levels of serum lipid/lipoprotein (including triglycerides, total cholesterol, high-density lipoprotein and low-density lipoprotein), in both genders, the odds ratio of cognitive impairment was statistically insignificant. There were no significant differences in levels of lipid/lipoprotein between subjects with and without cognitive impairment. Pearson correlation showed that MMSE scores were not significantly correlated with levels of lipid/lipoprotein. In summary, we found that levels of serum lipid/lipoprotein were not directly correlated with cognitive impairment among Chinese nonagenarians and centenarians.

Keywords:
Lipid/lipoprotein, Cognitive impairment, Nonagenarians and centenarians, Chinese population
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© 2009 S. Karger AG, Basel
2009
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