Table 2 Correlations (and Confidence Intervals) Among Variables

1. Housework

-

2. Days survived

0.15***

[0.12, 0.18]

-

3. Cognitive functioning

0.04*

[0.01, 0.07]

0.11***

[0.08, 0.14]

-

4. Physical health

0.05***

[0.02, 0.08]

0.08***

[0.05, 0.11]

0.18***

[0.15, 0.21]

-

5. Mental health

0.01

[-0.02, 0.05]

0.01

[-0.02, 0.04]

0.06***

[0.03, 0.09]

0.02

[-0.01, 0.05]

-

6. Age

− 0.19***

[-0.22, − 0.16]

− 0.32***

[-0.35, − 0.29]

− 0.26***

[-0.29, − 0.23]

− 0.06***

[-0.09, − 0.03]

0.03*

[0.00, 0.06]

-

7. Sex

(0 = male; 1 = female)

0.05**

[0.02, 0.08]

0.12***

[0.09, 0.15]

− 0.34***

[-0.37, − 0.32]

− 0.23***

[-0.26, − 0.20]

− 0.05***

[-0.08, − 0.02]

0.02

[-0.01, 0.05]

-

8. Marital status

(0 = not married; 1 = married)

0.05**

[0.02, 0.08]

− 0.09***

[-0.12, − 0.06]

− 0.17***

[-0.20, − 0.14]

− 0.06***

[-0.09, − 0.02]

− 0.03

[-0.06, 0.00]

0.20***

[0.17, 0.23]

0.23***

[0.20, 0.26]

-

9. Education

− 0.03

[-0.06, 0.01]

0.07***

[0.03, 0.10]

0.38***

[0.36, 0.41]

0.13***

[0.10, 0.16]

0.07***

[0.04, 0.10]

− 0.13***

[-0.16, − 0.10]

− 0.27***

[-0.30, − 0.24]

− 0.11**

[-0.14, − 0.08]

-

10. Living status

(0 = with others; 1 = alone)

− 0.02

[-0.05, 0.01]

0.06***

[0.03, 0.09]

0.13***

[0.10, 0.16]

0.03

[-0.00, 0.06]

0.04**

[0.01, 0.07]

− 0.17***

[-0.20, − 0.14]

− 0.19***

[-0.22, − 0.16]

− 0.50**

[-0.52, − 0.48]

0.07***

[0.04, 0.10]

-

11. Subjective social status

− 0.05**

[-0.08, − 0.02]

0.03

[-0.01, 0.05]

0.02

[-0.02, 0.05]

0.12***

[0.09, 0.15]

0.09***

[0.06, 0.12]

− 0.01

[-0.04, 0.02]

0.05**

[0.02, 0.08]

− 0.05**

[-0.08, − 0.02]

0.22***

[0.19, 0.25]

0.04*

[0.01, 0.07]