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Table 1 Sample demographics

From: Is geriatric depression scale a valid instrument to screen depression in Chinese community-dwelling elderly?

  Whole sample Participants with normal cognition Participants with screened MCI P
Sample size (n, %) 12,610 (100.0) 3601 (100.0) 1902 (100.0) -
Age (y, mean ± SD) 67.3 ± 7.6 66.6 ± 7.1 68.6 ± 7.7 < 0.0001
Gender (n, %)
 Male 5441 (43.2) 1612 (44.8) 826 (43.4) 0.3422§
 Female 7169 (56.8) 1989 (55.2) 1076 (56.6)
GDS-30 score (P50, (P25, P75)) 4 (2, 8) 4 (2, 9) 5 (2, 9) < 0.0001
Degree of depressive symptoms (n, %)
 No 11,412 (90.5) 3267 (90.7) 1708 (89.8) 0.1441§
 Mild 1122 (8.9) 318 (8.8) 178 (9.4)
 Moderate to severe 76 (0.6) 16 (0.5) 16 (0.8)
Education-adjusted MoCA score (P50, (P25, P75)) 24 (19, 28) 27 (23, 30) 18 (14, 21) < 0.0001
  1. Statistical test between participants with or without cognitive impairment
  2. Independent-samples t’-test
  3. §Chi-square test
  4. Mann-Whiteney U test