Table 1 The content of the educational sessions based on the theory of planned behavior

1

Improving breastfeeding mothers’ knowledge and attitudes toward DHM and HMB

• PowerPoint presentation

• Booklet (including contents of all sessions)

• Pamphlet of the first session

1) Introducing presenter and participants and explaining study aims (10 min)

2) Giving information on importance and background of breast milk donation and HMBs (40 min)

3) Question and answer (10 min)

2

Addressing the role of subjective norms in breast milk donation

• PowerPoint presentation

• Pamphlet of the second session

1) Reviewing previous session (5 min)

2) Giving information related to Islamic laws of milk donation (15 min)

3) Presenter will use the psychodrama method. In this method two volunteer breastfeeding mothers role-play problems and release their intense emotions in regard to milk donation, then the presenter will guide their subjective norms [26] (30 min)

4) Question and answer (10 min)

3

Addressing the role of perceived behavioral control in breast milk donation behavior

• PowerPoint presentation

• Pamphlet of the third session

• Video

1) Reviewing previous session (5 min)

2) Giving information on requirements for breast milk donation, indication and contraindication of breast milk donation, process and cost of HMBs and current status of HMBs in Tehran (40 min)

3) Screening a video which shows how a HMB works (5 min)

4) Question and answer (10 min)

4

Addressing the behavioral intention and explaining how to implement the behavior of donating breast milk

• PowerPoint

• Pamphlet of the fourth session

• Video

• Breast pump

1) Reviewing previous session (5 min)

2) Giving information on breast milk expression (10 min)

3) Showing how to express breast milk by hand and breast pump (25 min)

4) Showing videos of successful breast milk expression (10 min)

5) Question and answer (10 min)