Group

Knowledge

Attitude

Practice

before

after

before

after

before

after

Observation (n = 46)

2.12 ± 0.42

4.02 ± 0.70*

1.96 ± 0.37

3.97 ± 0.66*

1.87 ± 0.32

3.91 ± 0.65*

Control (n = 30)

2.16 ± 0.45

2.98 ± 0.53*

1.91 ± 0.35

2.86 ± 0.41*

1.84 ± 0.29

2.81 ± 0.38*

t

0.440

7.963

0.665

9.418

0.470

9.731

P

0.662

0.000

0.506

0.000

0.638

0.000