Distress screening and supportive care referrals used by telephone-based health services: a systematic review.

The reviewed studies indicate that validated distress-screening tools are being used via telephone to identify distress, particularly in relation to cancer. Screening-driven supportive care referrals are also taking place in telephone-based services. However, not all services use an established referral protocol. Ongoing rescreening of callers' distress is also limited despite it being an important recommendation from psycho-oncology guidelines.