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Table 1 Descriptive characteristics of the participants by sex

From: Age and sex-specific associations between depressive symptoms, body mass index and cognitive functioning among Korean middle-aged and older adults: a cross-sectional analysis

Variables All Men Women
N = 5,619 N = 2,363 N = 3,256
M ± SD or n (%) M ± SD or n (%) M ± SD or n (%)
Cognitive Function 25.046  ± 5.571 25.915  ± 5.083 24.415  ± 5.820
BMI 23.393  ± 2.724 23.250  ± 2.502 23.496  ± 2.870
CES-D 3.177  ± 2.907 2.944  ± 2.883 3.346  ± 2.912
Age 70.735  ± 9.075 70.624  ± 8.775 70.815  ± 9.287
Family Incomea 2782  ± 2624 7.688  ± 0.838 7.479  ± 0.937
ADL 0.129  ± 0.828 0.110  ± 0.765 0.143  ± 0.871
Marriedb1 4,197 (74.69) 2,124 (89.89) 2,073 (63.67)
Meet Friendsb2 4,525 (80.53) 1,883 (79.69) 2,642 (81.14)
Good Healthb3 1,504 (26.77) 724 (30.64) 780 (23.96)
Regular Exerciseb4 1,895 (33.72) 897 (37.96) 998 (30.65)
  1. Abbreviations: M ± SD Mean ± standard deviations, n (%) Number of observations (percentage)
  2. Cognitive Function is measured with K-MMSE score. BMI is body mass index (kg/m2)
  3. CES-D is the CES-D-10 scale for assessment of depressive symptoms
  4. ADL is activities of daily living score
  5. aFamily Income is annual household income in ₩10,000
  6. bDummy variable indicating group: 1 = Currently married with a living spouse; 2 = Meet friends at least once a month; 3 = have a good health status; 4 = Exercise regularly