Cases

Insignificant stress

Significant stress

X2

P

Marriage

Married

126

84

42

21.003

0.000

Unmarried, divorced or willowed

42

11

31

Age

<60

32

10

22

17.216

0.000

>60

136

96

40

Education

Above high school

22

18

4

9.504

0.002

Under high school

146

68

78

Month income

≥2000 RMB

62

32

30

6.26

0.010

<2000 RMB

106

34

72