. 2021 May 31;18(11):5905. doi: 10.3390/ijerph18115905

Table 3.

Estimation results of the model selection.

Variable	(1)	(2)	(3)	(4)	(5)	(6)
Variable	OLS	OLS	FE	FE	RE	Panel Logit
Whether to care for the elderly	−0.054 ***	−0.043 **	−0.040	−0.047	−0.044 **	−0.496 **
Whether to care for the elderly	(−2.86)	(−2.26)	(−1.02)	(−1.21)	(−2.29)	(−2.28)
Wage rate	0.059 ***	0.066 ***	0.017	0.016	0.052 ***	0.600 ***
Wage rate	(5.38)	(5.93)	(0.83)	(0.78)	(4.64)	(4.41)
Age	0.018	0.011	0.039	0.044	0.013	0.164
Age	(0.40)	(0.25)	(0.43)	(0.47)	(0.29)	(0.33)
Urban-rural household registration	0.080 ***	0.078 ***	−0.033	−0.033	0.069 ***	0.688 ***
Urban-rural household registration	(3.90)	(3.77)	(−0.62)	(−0.63)	(3.24)	(3.05)
Health	0.042	0.034	0.058	0.056	0.034	0.408
Health	(1.36)	(1.09)	(1.08)	(1.03)	(1.15)	(1.18)
Whether to care for children under 6 years old	−0.001	−0.004	−0.008	−0.008	−0.006	−0.065
Whether to care for children under 6 years old	(−0.03)	(−0.21)	(−0.24)	(−0.23)	(−0.30)	(−0.30)
Number of members in family	−0.026 ***	−0.022 ***	−0.000	0.003	−0.019 ***	−0.191 **
Number of members in family	(−3.73)	(−3.21)	(−0.01)	(0.14)	(−2.66)	(−2.53)
Whether to live with parents (in-laws)	0.072 ***	0.063 ***	−0.018	−0.023	0.057 **	0.546 **
Whether to live with parents (in-laws)	(2.97)	(2.60)	(−0.38)	(−0.45)	(2.34)	(2.05)
Constant	0.770 ***	0.735 ***	0.723 **	0.674 *	0.801 ***	2.228
Constant	(4.65)	(4.04)	(2.14)	(1.85)	(4.76)	(1.23)
Individual effect	No control	No control	Control	Control	Control	Control
Time effect	No control	Control	No control	Control	Control	Control
n	1728	1728	1728	1728	1728	1728
R²	0.044	0.054	0.007	0.019	—	—

Note: ***, **, * represent 1%, 5%, 10% significance level, respectively. The values in brackets of columns (1)–(5) in the table are t values, the same as in the following table. The values in brackets of columns (6) in the table are z values (because logit regression uses maximum likelihood estimation).