Triangulation study of needs assessment of people with severe mental illness in "follow-up" day hospital settings.

Aim: The aim of research was to assess the needs of patients with severe mental illness (SMI) attending follow-up day hospital (DH) programmes from the patients', relatives' and experts' perspective.

Design: This triangulation research relies on three sources of information and two techniques of data collection.

Methods: Qualitative research was conducted comprising semi-structured interviews (n = 15) and focus groups (n = 4) in three sequential rounds, triangulating patients', relatives' and experts' views.