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Table 1 Characteristics by quartile of baseline total cholesterola

From: Blood cholesterol in late-life and cognitive decline: a longitudinal study of the Chinese elderly

  Quartile 1 Quartile 2 Quartile 3 Quartile 4 P trendb
0.35–3.46 mmol/L 3.47–4.14 mmol/L 4.15–4.84 mmol/L 4.85–8.79 mmol/L
No. 290 287 293 289  
Age, y 78.4 (0.64) 79.0 (0.63) 80.4 (0.64) 80.0 (0.64) 0.03
Women, % 39.3 37.3 56.7 61.3 <0.001
Education, y 2.34 (0.18) 2.46 (0.18) 2.29 (0.18) 2.81 (0.19) 0.14
Smoking status, pack-year 8.59 (1.12) 8.87 (1.14) 7.59 (1.11) 10.98 (1.13) 0.25
Alcohol intake, servings/d 0.98 (0.47) 1.99 (0.48) 1.83 (0.47) 1.58 (0.48) 0.45
Physical activity, % 21.1 19.5 20.1 23.7 0.84
Depression symptoms, % 7.0 6.9 5.6 6.9 0.23
Body mass index, kg/m2 21.0 (0.22) 21.6 (0.22) 21.6 (0.22) 22.5 (0.22) <0.001
Waist circumference, cm 80.2 (0.63) 79.6 (0.64) 81.4 (0.63) 83.5 (0.63) <0.001
Hypertension, % 49.7 55.4 61.4 59.2 0.02
LDL-C, mmol/L 1.66 (0.03) 2.11 (0.03) 2.59 (0.03) 3.45 (0.03) <0.001
Glucose, mmol/L 5.10 (0.13) 4.71 (0.13) 4.99 (0.13) 4.88 (0.13) 0.51
Uric acids, μmol/L 272.5 (4.90) 278.2 (4.94) 284.1 (4.87) 299.9 (4.94) <0.001
  1. aValues are mean (standard error) adjusted for age and sex
  2. bAdjusted for age and sex