Table 2.

Correlations (and Confidence Intervals) Among Variables

Variable	1	2	3	4	5	6	7	8	9	10
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]

Notes. Values in square brackets indicate the 95% confidence intervals of the correlation coefficients. *p < .05, **p < .01, *** p < .001