Are changes in self-rated health associated with memory decline in older adults? Bendayan, R., Piccinin, A. M., Hofer, S. M., & Muniz-Terrera, G



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Table1.

HRS sample descriptive statistics and means (M) and standard deviations (SD) for immediate and delayed recall for each group of SRH change from baseline to 8 years follow-up. Percentages for categorical variables are provided.





Total

EVGG

FP

IMP

DECL

FLUCT




N

6016


2760 (45.9%)

689 (11.5%)

344

(5.7%)


976 (16.2%)

1247

(20%)





Sex (Female)

58.7%

58.7%

62.8%

56.1%

58.1%

57.7%

χ2 (4)=6.49; p=.16

Education




















χ2 (8)=408.40; p<.001

Less 10 years

18.2%

9.7%

34.3%

29.1%

18.3%

25.1%




10-13 years

51.9%

52%

48.3%

54.1%

16.6%

15.5%




+14 years

29.9%

38.3%

17.4%

16.9%

20.9%


15.6%




Baseline age

71.41 (4.46)

70.81

(4.32)


71.56 (4.54)

72.17 (4.51)

72.20 (4.56)

71.83 (4.47)

K-W(4)=98.01; p<.001

Immediate recall






















Baseline

5.49

(1.71)


5.88

(1.60)


4.80

(1.71)


5.13

(1.66)

5.45

(1.68)


5.15

(1.76)


K-W(4)=327.91; p<.001

2 years follow-up

5.19

(1.70)


5.56

(1.66)


4.63

(1.72)


4.80

(1.57)


5.01

(1.71)


4.92

(1.62)


K-W(4)=273.68; p<.001

4 years follow-up

5.01

(1.71)


5.41

(1.64)


4.39

(1.64)


4.59

(1.79)


4.81

(1.67)

4.73

(1.70)


K-W(4)=321.93; p<.001

6 years follow-up

4.80

(1.64)


5.19

(1.57)


4.13

(4.56)


4.56

(4.49)


4.49

(1.63)


4.53

(1.62)


K-W(4)=300.59; p<.001

8 years follow-up

4.64

(1.67)


5.05

(1.60)


3.97 (1.54)

4.42

(1.60)


4.28

(1.59)


4.27

(1.68)


K-W(4)=302.16; p<.001

Delayed recall























Baseline

4.33 (2.11)

4.75

(2.05)


3.58

(2.05)


3.93

(3.02)


4.25

(2.13 )


4.01

(2.09)


K-W(4)=262.77; p<.001

2 years follow-up

4.06 (2.06)

4.49

(2.01)


3.40

(1.99)


3.51

(2.11)


3.83

(2.11)

3.77

(1.95)


K-W(4)=261.05; p<.001

4 years follow-up

3.88 (2.08)

4.34

(2.03)


3.11

(1.98)


3.33

(2.07)


3.57

(2.07)


3.67

(2.02)


KW(4)=298.48; p<.001

6 years follow-up

3.60 (1.99)

4.06

(1.94)


2.92

(1.86)


3.26

(1.94)


3.17

(2.01)


3.27

(1.90)


K-W(4)= 286.53; p<.001

8 years follow-up

3.41 (2.01)


3.87

(1.96)


2.62

(1.92)


3.11

(2.04)


3.01

(1.93)


2.99

(1.96)


K-W(4)= 261.10; p<.001

Table 2.



Immediate and delayed recall models adjusted for baseline age, sex and education, for HRS.




Immediate recall




Delayed recall







Estimate (SE)

CI

Estimate (SE)

CI

Intercept

4.82 (.06)***

4.71,49.94

3.77 (.07)***

3.63,.392


Time

-.06 (.009)***

-.08,-.04

-.04 (.01)**

-.06,-.02

Age_baseline

-.06 (.004)***

-.06,-.05

-.08 (.005)***

-.09,-.07

Female

.61 (.03)***

.54,.69

.67 (.04)***

.58,.76

Education (ref 9 years or less)













10-13

.88 (.05)***

.78,.98

.92 (.06)***

.80,1.04

14+


1.40 (.05)***

1.29,1.51

1.50 (.06)***

1.37,1.64

SRH(ref EVGG)













SRH_FP

-.65 (.06)***

-.77,-.53

-.73 (.07)***

-.88,-.58

SRH_IMP

-.40 (.08)***

-.56,-.24

-.48 (.10)***

-.68,-.28

SRH_DECL

-.20 (.05)***

-.30,-.10

-.24 (.06)**

-.37,-.12

SRH_FLUCT

-.39 (.04)***


-.49,-.30

-.37 (.06)***

-.49,-.25

Slope













Age_baseline

-.002(.0006)***

-.003,-.001

-.003 (.0008)***

-.005,-.002

Female

-.02 (.005)***

-.03,-.01

-.03 (.007)***

-.05,-.02

Education (ref 9 years or less)













10-13

-.01 (.008)*

-.03,-.0007

-.02 (.01)*


-.04,-.0009

14+

.007 (.01)***

-.04,-.01

-.04 (.01)***

-.06,-.02

SRH(ref EVGG)













SRH_FP

-.01(.01)

-.03,.007

-.02 (.01)*

-.04,.004

SRH_IMP

.007(.007)

-.01,.03

-.001 (.01)

-.03,.03

SRH_DECL

-.05 (.008) ***

-.06,-.03

-.06 (.01)***

-.08,-.04

SRH_FLUCT


-.007(.007)

-.02,.007

-.02 (.009)**

-.04,-.003




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