Flow diagram of research participants
The researchers recruited 60 couples to participate in the study. After excluding couples who could not participate in the programme because of the husbands' work schedules, the 37 couples who met the selection criteria and agreed to participate in the study were finally assigned to one of the two groups. The intervention group consisted of 15 couples who had participated in the pregnancy programme. All intervention group participants responded to the questionnaires during pregnancy, 1 month and 3 months after delivery and submitted valid responses for analysis. The control group comprised 15 couples who had completed all the questionnaires during pregnancy, 1 month and 3 months after childbirth. A flow diagram of this study is shown in Figure Flow diagram of research participants.