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Table 1 Principal characteristics and lipid profile of MCI and cognitively normal controls

From: Relationship between plasma lipids and mild cognitive impairment in the elderly Chinese: a case-control study

Characteristics MCI group (n = 112) Control group (n = 115) P value
Age, years (Mean ± SD)b 76.32 ± 5.73* 74.51 ± 6.02 0.023
Female gender (%)a 79 (70.54)* 55 (47.83) 0.002
Education, years (Mean ± SD)b 8.62 ± 4.63* 9.12 ± 4.51 0.017
MMSE scores (Mean ± SD)b 17.25 ± 4.28* 25.22 ± 3.25 0.001
BMI (kg/m2) (Mean ± SD)b 25.51 ± 4.62* 27.41 ± 5.41 0.004
Current smoking (%)a 11 (9.82) 13 (11.30) 0.783
Lipid level (mg/dl)b
 TC (Mean ± SD) 196.61 ± 17.22* 190.21 ± 20.92 0.012
 TG (Mean ± SD) 147.53 ± 27.52* 156.52 ± 28.51 0.018
 HDL-C (Mean ± SD) 46.72 ± 5.51* 48.61 ± 5.82 0.014
 LDL-C (Mean ± SD) 118.62 ± 34.31 120.22 ± 36.41 0.742
Vascular disorders (%)a
 Stroke 19 (18.96) 15 (7.04) 0.321
 T2DM 32 (28.57)* 17 (14.78) 0.013
 Hypertension 73 (65.18)* 48 (41.74) 0.001
 Heart disease 42 (37.50)* 27 (23.48) 0.031
  1. Figures in parentheses indicate percentages; Values for continuous variables are mean ± standard deviation
  2. Abbreviations: BMI Body Mass Index, HDL-C High-density lipoprotein cholesterol, LDL-C Low-density lipoprotein cholesterol, T2DM diabetes mellitus type II, TC Total Cholesterol, TG Triglyceride
  3. *significant at P < 0.05 vs control group
  4. aDichotomous variables (n, %) were tested using χ 2 test
  5. bContinuous variables (mean, SD) were tested for differences between the two groups using Mann–Whitney or t-test