Table 3 Mean scores of knowledge, attitude and practice within the control and intervention groups before and after intervention

0.12 (− 0.26, 0.49)

0.544

− 2.95 (− 3.31, − 2.59)

< 0.001*

− 0.55 (− 0.86, − 0.23)

0.001*

− 3.74 (− 4.06, − 3.42)

< 0.001*

0.22 (− 0.11, 0.54)

0.198

− 2.63 (− 2.99, − 2.28)

< 0.001*

− 0.2 (− 0.61, 0.21)

0.338

− 3.74 (− 4.12, − 3.37)

< 0.001*

0.2 (− 0.12, 0.52)

0.220

− 3.67 (− 3.95, − 3.39)

< 0.001*

− 0.3 (− 0.36, 0.30)

0.853

− 3.75 (− 4.07, − 3.43)

< 0.001*

0.31 (− 0.10, 0.71)

0.134

− 4.45 (− 4.79, − 4.11)

< 0.001*