Group

Control group (n = 73)

Experimental group (n = 73)

χ²

P value

Satisfied

32 (43.84)

65 (89.04)

33.45

P < 0.0001

Common

28 (38.36)

7 (9.60)

16.57

P < 0.0001

Dissatisfied

13 (17.81)

1 (1.40)

11.38

P = 0.0007