Variable

B

Beta

t

p-value

VIF

Control variables

Age

0.00

0.02

0.29

0.776

1.10

Work status (0 = Full-time)

Part-time

−0.09

−0.04

−0.56

0.575

1.14

Unemployed

0.24

0.09

1.29

0.198

1.10

Gender role attitude

0.03

0.03

0.39

0.701

1.10

SES (compared with other families in the society)

0.09

0.08

1.11

0.269

1.07

Independent variable

Respondent’s support to her parent in-law’s housework

−0.16

−0.09

−1.24

0.218

1.34

Spouse’s support to his parent’s housework

0.04

0.02

0.27

0.790

1.35

Moderator variable

Assessment of spouse’s health status

0.26

0.24

2.57*

0.011

1.97

Assessment of self-health status

0.25

0.24

2.72**

0.007

1.71

Assessment of father in-law’s health status

0.03

0.04

0.34

0.736

2.59

Assessment of mother in-law’s health status

0.10

0.12

1.42

0.158

1.62

Respondent’s support to her parent in-law’s housework × Assessment of self-health status

0.36

0.17

2.16*

0.032

1.38

Spouse’s support to his parent’s housework × Assessment of spouse’s health status

0.19

0.08

0.97

0.333

1.53

Respondent’s support to her parent in-law’s housework × Assessment of father in-law’s health status

−0.06

−0.05

−0.40

0.690

2.86

Spouse’s support to his parent’s housework × Assessment of father in-law’s health status

−0.32

−0.18

−2.04*

0.043

1.77

Respondent’s support to her parent in-law’s housework × Assessment of mother in-law’s health status

−0.01

−0.00

−0.04

0.972

2.06

Spouse’s support to his parent’s housework × Assessment of mother in-law’s health status

−0.07

−0.04

−0.47

0.638

1.95

R²

0.29

Adjusted R²

0.22

F-vaule

3.92***

0.000