Table 1. Demographic characteristic of the sample.

Variables	Overall	Male (376)	Female (265)	t and χ2
Age (SD)	24.11 (3.30)	24.52 (3.32)	23.52 (3.17)	3.84***
Years of being a migrant worker in Beijing (SD)	3.62 (2.51)	3.89 (2.65)	3.22 (2.25)	3.19**
Mean monthly income in Yuan (SD)	2455.81 (1223.69)	2544.99 (1335.56)	2324.44 (1025.82)	2.28*
Marital status (%)
Unmarried	59.60	55.50	65.40	7.98*
Unmarried but living together	7.50	9.30	4.90
Married	32.60	35.00	29.30
Divorced, widowed, or separated	0.30	0.30	0.40

*p < 0.05.

**p < 0.01.

***p < 0.001.