Background In patient-centred care, professionals should recognize their patient's needs and adapt their communication accordingly. Studies into patients' communication needs suggest priorities vary depending on sociodemographic characteristics, and type and severity of the complaints. However, evidence lacks on priorities in the communication needs of adolescents in psychosocial care and their parents.Objective To assess adolescents' and parents' importance ratings concerning affective communication, information provision, shared decision-making, interprofessional communication and the degree to which client and care characteristics determine these.Methods Adolescents aged 12-18 (n = 403) and one of their parents (n = 403) rated the import...