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Table 2 Cognitive descriptions of eligible individuals

From: Sex-specific associations between lipids and cognitive decline in the middle-aged and elderly: a cohort study of Chinese adults

 

Overall, N = 6792

Male, n = 3494

Female, n = 3298

P value

Cognition at baseline, mean (SD)

 Global cognition

11.84 (3.26)

12.31 (3.07)

11.34 (3.38)

< 0.001

 Mental status

7.99 (2.52)

8.51 (2.30)

7.45 (2.62)

< 0.001

 Episodic memory

3.85 (1.60)

3.80 (1.57)

3.89 (1.63)

0.018

Cognition at 2015, mean (SD)

 Global cognition

10.96 (3.93)

11.51 (3.60)

10.38 (4.16)

< 0.001

 Mental status

7.39 (2.91)

7.96 (2.65)

6.79 (3.04)

< 0.001

 Episodic memory

3.47 (1.79)

3.44 (1.74)

3.50 (1.83)

0.226

Absolute cognitive decline during 2011–2015, mean (SD)

 Global cognition

0.88 (3.44)

0.88 (3.38)

0.88 (3.50)

0.969

 Mental status

0.58 (2.71)

0.59 (2.67)

0.57 (2.76)

0.781

 Episodic memory

0.37 (1.86)

0.37 (1.83)

0.37 (1.89)

0.982

Groups of global cognition change, n (%) a

 No decline

3119 (47.55)

1612 (47.87)

1507 (47.20)

0.859

 Moderate decline

1791 (27.30)

914 (27.15)

877 (27.46)

 

 Severe decline

1650 (25.15)

841 (24.98)

809 (25.34)

 

Groups of mental status change, n (%) b

 No decline

3637 (54.67)

1898 (55.37)

1739 (53.93)

0.499

 Moderate decline

1531 (23.02)

779 (22.72)

752 (23.33)

 

 Severe decline

1484 (22.31)

751 (21.91)

733 (22.74)

 

Groups of episodic memory change, n (%) c

 No decline

3442 (51.74)

1769 (51.60)

1673 (51.89)

0.884

 Moderate decline

1683 (25.30)

876 (25.55)

807 (25.03)

 

 Severe decline

1527 (22.96)

783 (22.85)

744 (23.08)

 
  1. a232 missing, no decline (slope of change ≥ 0), moderate decline (slope of change: median to 0) and severe decline (slope of change < median)
  2. b140 missing, no decline (slope of change ≥ 0), moderate decline (slope of change: median to 0) and severe decline (slope of change < median)
  3. c140 missing, no decline (slope of change ≥ 0), moderate decline (slope of change: median to 0) and severe decline (slope of change < median)