Table 6 Two-by-two comparison of the incidence of WPV at different time points within the group of nurses in both groups

Intervention group

Overall

T₀-T₁

1.891

0.169

T₀-T₂

4.154

0.042

T₀-T₃

7.567

0.006

T₁-T₂

12.348

 < 0.001

T₁-T₃

17.762

 < 0.001

T₂-T₃

0.518

0.472

Verbal aggression

T₀-T₁

1.234

0.267

T₀-T₂

4.644

0.031

T₀-T₃

7.561

0.006

T₁-T₂

10.570

0.001

T₁-T₃

14.737

 < 0.001

T₂-T₃

0.361

0.548

Verbal threat

T₀-T₁

3.218

0.073

T₀-T₂

4.997

0.025

T₀-T₃

7.598

0.006

T₁-T₂

15.989

 < 0.001

T₁-T₃

20.313

 < 0.001

T₂-T₃

0.280

0.597

Verbal sex harassment

T₀-T₁

0.026

0.871

T₀-T₂

0.618

0.432

T₀-T₃

0.104

0.747

T₁-T₂

0.390

0.533

T₁-T₃

0.026

0.873

T₂-T₃

0.216

0.642

Physical aggression

T₀-T₁

6.563

0.010

T₀-T₂

13.768

 < 0.001

T₀-T₃

16.495

 < 0.001

T₁-T₂

1.460

0.227

T₁-T₃

2.523

0.112

T₂-T₃

0.149

0.699

Physical sex harassment

T₀-T₁

0.081

0.776

T₀-T₂

0.348

0.555

T₀-T₃

0.379

0.538

T₁-T₂

0.095

0.758

T₁-T₃

0.104

0.747

T₂-T₃

0.115

0.735

Control group

Overall

T₀-T₁

1.595

0.207

T₀-T₂

0.000

1.000

T₀-T₃

0.544

0.461

T₁-T₂

1.595

0.207

T₁-T₃

3.985

0.046

T₂-T₃

0.544

0.461

Verbal aggression

T₀-T₁

1.581

0.209

T₀-T₂

0.015

0.902

T₀-T₃

0.541

0.462

T₁-T₂

1.906

0.167

T₁-T₃

3.957

0.047

T₂-T₃

0.375

0.540

Verbal threat

T₀-T₁

1.787

0.181

T₀-T₂

0.015

0.902

T₀-T₃

0.381

0.537

T₁-T₂

2.129

0.145

T₁-T₃

3.805

0.051

T₂-T₃

0.244

0.621

Verbal sex harassment

T₀-T₁

0.030

0.863

T₀-T₂

0.029

0.865

T₀-T₃

0.000

1.000

T₁-T₂

0.117

0.732

T₁-T₃

0.030

0.863

T₂-T₃

0.029

0.865

Physical aggression

T₀-T₁

2.824

0.093

T₀-T₂

0.163

0.686

T₀-T₃

4.548

0.033

T₁-T₂

0.023

0.880

T₁-T₃

0.211

0.646

T₂-T₃

0.095

0.758

Physical sex harassment

T₀-T₁

0.379

0.538

T₀-T₂

0.087

0.768

T₀-T₃

0.071

0.791

T₁-T₂

0.000

1.000

T₁-T₃

0.785

0.376

T₂-T₃

0.323

0.570