Eight of the ten studies included fathers. In three of these studies the proportion of fathers who participated was not indicated. while in the remaining five studies 18- 78% of fathers participated The study purposes all included some aspect of describing parents experiences with and / or views on treatment decision making for their infants. Although some studies provided sparse details on the study methods others described their methods, which included ethnographic observation,
semi-structured interviews, and unstructured interviews Five studies were completed in the United States, and the other.