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Table 2 Associations between handgrip strength with BMI and cognitive decline

From: Association among handgrip strength, body mass index and decline in cognitive function among the elderly women

BMI a

Non-obese

Obese

P interaction

Handgrip Strength b

Weak

Strong

Weak

Strong

 

Number of cases

94

105

39

32

 

 Model 1

1.00 (reference)

1.15 (0.71–1.84)

1.00 (reference)

0.66 (0.32–1.38)

0.065

 Model 2

1.00 (reference)

1.04 (0.63–1.73)

1.00 (reference)

0.39 (0.17–0.92)

0.029

 Model 3

1.00 (reference)

1.13 (0.67–1.88)

1.00 (reference)

0.28 (0.11–0.72)

0.025

 Model 4

1.00 (reference)

1.26 (0.75–2.13)

1.00 (reference)

0.23 (0.08–0.66)

0.013

  1. anon-obese, BMI < 25 kg/m2; obese, BMI ≥ 25 kg/m2
  2. bHandgrip strength: weak, lower half, < 18.5 kgF; strong, upper half, ≥18.5 kgF
  3. Model 1: odds ratio by logistic regression analysis adjusted for age (95% confidence interval)
  4. Model 2: additionally adjusted for marital status, education, income, insurance, and area of residence
  5. Model 3: additionally adjusted for smoking status, drinking, physical activity, and weight change
  6. Model 4: additionally adjusted for activities of daily living, depression, comorbidity, and baseline K-MMSE score
  7. P for interaction of BMI and handgrip strength for cognitive impairment
  8. Acronyms: BMI, body mass index