Table 3 Mean scores of maternal role adaptation and its dimensions in control and intervention groups

Involvement in care

Intervention

62.97 ± 7.20

68.50 ± 2.93

P < 0.001*

T = − 6.315

Control

59.37 ± 5.92

61.45 ± 6.139

P < 0.001*

T = − 3.967

Between-group estimate

P = 0.017**

T = 2.441

P < 0.001**

T = 44.014

Self-efficacy

Intervention

26.45 ± 2.60

28.90 ± 1.29

P < 0.001*

T = − 8.240

Control

25.87 ± 2.74

26.67 ± 2.70

P = 0.004*

T = − 3.035

Between-group estimate

P = 0.339**

T = 0.961

P < 0.001**

T = 4.695

Distant motherhood

Intervention

12.80 ± 1.58

14.42 ± 0.873

P < 0.001*

T = − 8.193

Control

12.67 ± 1.52

12.95 ± 1.61

P = 0.020*

T = -2.430

Between-group estimate

T = 0.359

P = 0.721**

T = 5.077

P < 0.001**

Lack of trust

Intervention

14.95 ± 3.07

17.72 ± 2.21

P < 0.001*

T = − 6.864

Control

15.15 ± 3.27

15.92 ± 2.99

P < 0.001*

T = − 3.583

Between-group estimate

P = 0.779

T = -0.282

P = 0.003

T = 3.057

Interaction

Intervention

12.55 ± 2.15

14.80 ± 6.40

P = 0.029*

T = − 2.269

Control

12.42 ± 1.55

13.17 ± 1.44

P < 0.001*

T = − 4.713

Between-group estimate

P = 0.767**

T = 0.297

P = 0.122**

T = 1.564

Growth

Intervention

9.07 ± 0.97

9.70 ± 0.46

P < 0.001*

T = − 4.900

Control

8.72 ± 1.03

9.001 ± 1.06

P = 0.010*

T = − 2.718

Between-group estimate

P = 0.123**

T = 1.558

P < 0.001**

T = 3.819

Maternal role adaptation

Intervention

138.800 ± 12.42

154.05 ± 8.57

P < 0.001*

T = − 9.437

Control

134.222 ± 11.84

139.17 ± 12.46

P < 0.001*

T = − 4.900

Between-group estimate

P = 0.096**

T = 1.685

P < 0.001**

T = 6.219