전화상담의 횟수는 대상자 심층면담을 통해 선호도가 확인된 퇴원 후 2주마다 1회, 총 3회의 방법으로 시행하였다.
The number of telephone consultations was conducted in a total of three times, once every two weeks after discharge, whose preference was confirmed through in-depth interviews.