The men in maternity health (MiM) education program provided male partners of pregnant women with comprehensive education on maternal health, covering topics such as pregnancy complications, obstetric danger signs, maternal health care (including antenatal, delivery, and postnatal care), the benefits of birth preparedness and complication readiness (BPCR), and safe delivery practices. Invitation letters were sent to male partners by public health supervisors every first and third week to encourage participation in the MiM program's activities, while maternal health education sessions were conducted every second and fourth week.

Male partners in the control group can only receive routine maternal health education if they accompany their female partners to antenatal care services at health facilities.

The six-month MiM education program focused on maternal health education for male partners of pregnant women in the intervention area. Assigned midwives offered two-hour-long, face-to-face health education and discussion sessions at five selected health centres every second and fourth Sunday, respectively, to accommodate participants' work schedules. Attendance consistently remained high at 80% of participants every month, with home visits for absentees to provide health education.

To assess the effectiveness of the Men in Maternity Health (MiM) intervention on male involvement in maternal health, specifically regarding changes in maternal health knowledge, including knowledge of maternal health care, danger signs during pregnancy, delivery, and the postpartum period.

Measurement: Pre- and post-intervention surveys assessed knowledge with 12 questions, each containing multiple sub-questions. Scoring was '1' for each correct answer, with a total score range from 0 to 36.

To assess the effectiveness of the Men in Maternity Health (MiM) intervention on male involvement in maternal health, specifically regarding changes in attitudes towards maternal health.

Measurement: Pre- and post-intervention surveys assessed attitudes with 12 questions. For positive statements, scores ranged from 4 (strongly agree) to 1 (strongly disagree), and for negative statements, scores ranged from 1 (strongly disagree) to 4 (strongly agree), with a total score range of 12 to 48.

The impact of the Men in Maternity Health (MiM) intervention on male involvement in birth preparedness and complication readiness (BPCR) practices was assessed through pre- and post-intervention surveys. BPCR practices include five key components: planning the health facility for birth, ensuring the presence of skilled birth attendants, arranging transportation for delivery or emergencies, identifying potential blood donors and saving money for delivery expenses. BPCR practices were measured with a composite score derived from responses to five components, each corresponding to one of the essential BPCR practices. Responses were scored '1' for 'Yes' and '0' for 'No'. The total BPCR score ranged from 0 to 5, with higher scores indicating better birth preparedness and complication readiness.

For institutional delivery outcomes, the place of delivery and the birth attendant for delivery were checked at the end of the study period through a post-intervention survey. The researcher validated the reported institutional deliveries by cross-referencing birth certificate records and obtaining information from the assigned area midwives.