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Table 1 Sample distributions by age and sex, CLHLS 2008/2009-2011/2012

From: Predictability of frailty index and its components on mortality in older adults in China

  

Total

Age groups

 

Sexes

 
  

65–79

80–89

90–99

100+

p a

Women

Men

p a

 

Sample size

13,731

3,689

3,613

3,750

2,679

 

7, 872

5, 859

 
 

% of death, 2008/2009-2011/2012 (n = 5,445)

39.7

10.7

30.8

54.9

70.1

***

42.2

36.3

***

 

Mean score of frailty (cumulative deficits)(0-39)

10.1

5.5

8.6

12.5

16.0

***

11.7

8.2

***

 

Mean score of frailty index (0-1)

0.26

0.14

0.22

0.32

0.41

***

0.30

0.21

***

Deficit index components

% cognitive impaired

44.8

11.2

36.0

60.9

80.6

***

55.3

30.9

***

Mean score of chronic diseases (0–11)

0.72

0.88

0.80

0.63

0.52

***

0.71

0.74

ns

Mean score of ADL disability (0–6)

0.60

0.10

0.31

0.74

1.50

***

0.76

0.38

***

Mean score of IADL disability (0–8)

3.57

0.85

2.84

4.88

6.47

***

4.26

2.64

***

Mean score of functional limitations (0–5)

1.11

0.36

0.84

1.45

2.04

***

1.34

0.81

***

Mean score of self-rated poor health (0–2)

1.44

1.37

1.45

1.47

1.47

***

1.46

1.40

***

Mean score of hearing and vision impairments (0–2)

0.56

0.12

0.38

0.75

1.13

***

0.67

0.41

***

% psychological distress

73.5

64.1

73.6

77.1

81.3

***

77.7

67.8

***

Covariates

% Men

42.7

53.1

50.7

41.7

18.9

***

NA

NA

NA

 

% Han ethnicity

93.4

93.7

93.9

93.4

92.3

ns

93.2

93.8

ns

 

% Urban residence

36.5

37.6

36.0

37.9

33.7

**

35.8

37.5

*

 

% Married

30.9

65.5

34.0

13.4

3.2

***

17.5

48.8

***

 

% 1 + year education

36.3

58.9

38.0

28.7

13.3

***

16.6

62.7

***

 

% White collar occupation

6.4

11.0

6.3

5.3

2.1

***

2.2

12.1

***

 

% Financial independence

23.6

48.5

21.0

14.3

5.9

***

12.7

38.3

***

 

% Good economic status

13.2

12.6

13.3

14.5

12.2

*

12.1

14.8

***

 

% Coresidence with family

83.3

85.7

79.3

80.3

89.4

***

82.6

84.1

*

 

% Current smoking

17.9

26.6

20.0

14.6

7.4

***

5.7

34.2

***

 

% Currently doing regular exercise

27.2

39.6

28.3

22.1

15.8

***

21.5

34.9

***

  1. Note (1) unweighted. (2) all variables were measured at 2008/2009 except for % of death. (3) numbers in the parentheses of frailty and its components were the ranges or values of items/scores. (4) ap values of statistical tests were obtained from either Chi-square tests or ANOVA tests. (5) NA not applicable. (6) n.s not significant, *p < 0.05, **p < 0.01, ***p < 0.001