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Table 3 Body mass index of patients with mild cognitive impairment and the controls with normal cognitive function in the study

From: Association of body mass index with amnestic and non-amnestic mild cognitive impairment risk in elderly

  aMCI a
(n = 240)
naMCI a
(n = 240)
Control
(n = 480)
BMI at baseline (kg/m2, mean ± SD) a, b 23.5 ± 4.0 23.3 ± 3.1 23.5 ± 4.1
BMI on admission (kg/m2, mean ± SD) 23.6 ± 3.3 23.4 ± 3.0 23.5 ± 2.9
 BMI at baseline
  Underweight (n, %) 11 (4.6) * # 4 (1.7) 9 (1.9)
  Normal weight (n, %) 87 (36.3) * 100 (41.7) * 267 (55.6)
 Overweight (n, %) 77 (32.1) * 73 (30.4) * 110 (22.9)
 Obese (n, %) 65 (27.1) * 63 (26.3) * 94 (19.6)
 BMI change
  Increased (n, %) 33 (13.8) 28 (11.7) 52 (10.4)
  Stable (n, %) 181 (75.4) 188 (78.3) 392 (81.7)
  Decreased (n, %) 26 (10.8) 24 (10.0) 38 (7.9)
  1. a BMI body mass index, SD standard deviation, aMCI amnestic mild cognitive impairment, naMCI non-amnestic mild cognitive impairment
  2. b Difference of three continuous variables was determined by one-way variance analysis (ANOVA) with Duncan’s post hoc test. Difference of categorical variables was determined using chi-square test. If a P value < 0.05, it was considered significant. * Compared with control, P < 0.05; # Compared with naMCI, P < 0.05