Group

Marked Effective

Effective

Ineffective

Total effective

Study group (n = 42)

29 (69.05)

11 (26.19)

2 (4.76)

40 (95.24)

Control group (n = 42)

23 (54.76)

10 (23.81)

9 (21.43)

33 (78.57)

χ² value

5.126

P value

0.024