Table 4 Mean score of maternal self-esteem in control and intervention groups

Personal competency

Intervention

18.35 ± 7.97

21.37 ± 6.96

P = 0.024*

T = -2.243

Control

17.97 ± 2.76

18.82 ± 2.37

P < 0.001*

T = − 3.479

Between-group estimate

P = 0.780**

T = 0.281

P = 0.031**

T = 2.193

Self-satisfaction

Intervention

12.60 ± 1.49

14.62 ± 1.67

P < 0.001*

T = − 7.733

Control

12.32 ± 1.43

12.70 ± 1.52

P = 0.014*

T = − 2.564

Between-group estimate

P = 0.405**

T = 0.837

P < 0.001**

T = 5.379

Maternal self-esteem

Intervention

30.95 ± 8.61

36.001 ± 7.74

P = 0.002*

T = − 3.245

Control

30.30 ± 3.79

31.52 ± 3.42

P < 0.001*

T = − 3.837

Between-group estimate

P = 0.664**

T = 0.437

P < 0.001**

T = 3.343