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. 2008 Sep 2;5(3):161. doi: 10.1007/s10433-008-0092-6

Table 5.

Psychosocial mediation between functional limitations and disability

Model (Dep. variable) Predictor variable B Std. error Beta P value Model R 2
19.A (ADL ability) (Constant) 4.88 1.32 0.00 0.58
Age −0.01 0.01 −0.05 0.32
Physical limitations −0.70 0.05 −0.75* 0.00
19. B (Depression) (Constant) 13.87 18.77 0.46 0.07
Age −0.10 0.21 −0.04 0.64
Physical limitations 2.47 0.78 0.27* 0.00
19.C (ADL ability) (Constant) 4.39 1.30 0.00 0.53
Age −0.01 0.01 −0.04 0.53
Physical limitations −0.59 0.06 −0.67* 0.00
Depression −0.01 0.01 −0.15* 0.02
20.A (ADL ability) (Constant) 4.88 1.32 0.00 0.58
Age −0.01 0.01 −0.05 0.32
Physical limitations −0.70 0.05 −0.75* 0.00
20.B (Mastery) (Constant) 2.51 1.43 0.08 0.18
Age 0.00 0.02 0.01 0.94
Physical limitations −0.31 0.06 −0.43* 0.00
20.C (ADL ability) (Constant) 3.96 1.31 0.00 0.54
Age −0.01 0.01 −0.05 0.43
Physical limitations −0.56 0.06 −0.63* 0.00
Mastery 0.22 0.08 0.18* 0.01
21.A (ADL ability) (Constant) 4.88 1.32 0.00 0.58
Age −0.01 0.01 −0.05 0.32
Physical limitations −0.70 0.05 −0.75* 0.00
21.B (Loneliness) (Constant) −1.63 1.21 0.18 0.09
Age 0.04 0.01 0.21* 0.01
Physical limitations 0.11 0.05 0.18* 0.03
21.C (ADL ability) (Constant) 4.03 1.32 0.00 0.57
Age 0.00 0.02 0.00 0.95
Physical limitations −0.64 0.05 −0.69* 0.00
Loneliness −0.27 0.09 −0.18* 0.00
22.A (Immobility) (Constant) −2.50 2.27 0.27 0.64
Age 0.02 0.03 0.05 0.36
Gender 0.35 0.18 0.10* 0.05
Physical limitations 1.31 0.09 0.77* 0.00
22.B (Depression) (Constant) 10.69 19.14 0.58 0.08
Age −0.09 0.21 −0.03 0.69
Gender 1.28 1.46 0.07 0.38
Physical limitations 2.42 0.78 0.26* 0.00
22.C (Immobility) (Constant) −0.18 2.21 0.94 0.65
Age −0.00 0.02 −0.01 0.89
Gender 0.29 0.17 0.09 0.09
Physical limitations 1.28 0.09 0.75* 0.00
Depression 0.02 0.01 0.13* 0.02
23.A (Immobility) (Constant) −2.50 2.27 0.27 0.64
Age 0.02 0.03 0.05 0.36
Gender 0.35 0.18 0.10* 0.05
Physical limitations 1.31 0.09 0.77* 0.00
23.B (Mastery) (Constant) 2.62 1.45 0.07 0.18
Age 0.00 0.02 0.00 0.95
Gender −0.05 0.11 −0.03 0.68
Physical limitations −0.31 0.06 −0.43* 0.00
23.C (Immobility) (Constant) 0.88 2.26 0.70 0.65
Age −0.00 0.02 −0.01 0.88
Gender 0.30 0.17 0.09 0.08
Physical limitations 1.23 0.10 0.72* 0.00
Mastery −0.35 0.14 −0.15* 0.01
24. A (Immobility) (Constant) −2.50 2.27 0.27 0.64
Age 0.02 0.03 0.05 0.36
Gender 0.35 0.18 0.10* 0.05
Physical limitations 1.31 0.09 0.77* 0.00
24.B (Loneliness) (Constant) −1.93 1.23 0.12 0.10
Age 0.04 0.01 0.22* 0.01
Gender 0.13 0.10 0.11 0.19
Physical limitations 0.10 0.05 0.17* 0.05
24.C (Immobility) (Constant) −1.60 2.34 0.50 0.63
Age 0.01 0.03 0.03 0.63
Gender 0.29 0.18 0.09 0.11
Physical limitations 1.33 0.10 0.77* 0.00
Loneliness 0.08 0.16 0.03 0.63
25.A (ADL ability) (Constant) 4.35 1.82 0.02 0.20
Age −0.03 0.02 −0.12 0.14
Delayed recall 0.14 0.03 0.42* 0.00
25.B (Loneliness) (Constant) −1.28 1.24 0.30 0.09
Age 0.04 0.01 0.22* 0.01
Delayed recall −0.03 0.02 −0.17* 0.05
25.C (ADL ability) (Constant) 3.26 1.83 0.08 0.20
Age −0.01 0.02 −0.05 0.58
Delayed recall 0.12 0.03 0.37* 0.00
Loneliness −0.26 0.13 −0.16* 0.05

Note: B is the unstandardized regression coefficient, Std. error is the standard error for this coefficient, and Beta is the standardized regression coefficient; * P value was <0.05; −0.00 represents a negative value that appears in the table as negative zero because only 2 decimal places were used. Models denoted by letter A indicate that this model tests the direct effect between the independent variable and the outcome variable; models denoted by letter B indicate that this model tests the direct effect between the independent variable and the mediator variable; models denoted by letter C indicate that this model tests the mediating effect between the independent variable and the outcome variable. On several occasions, the R 2 values of model version C are less than those of version A, which is due the listwise deletion of cases missing data on the psychosocial mediator variables