“…The intervention methods of delivery varied across studies, where 19 studies reported multiple strategies in delivering the interventions, such as PowerPoint presentation (PPT), group discussion, video demonstration, training, relevant images, cards, and brochures [ 9 , 10 , 16 , 19 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 56 , 57 , 58 , 59 , 60 , 61 , 62 ]. Three studies delivered the interventions by a single strategy, either by PPT [ 11 , 63 ] or video demonstration [ 55 ].…”