Schizophrenia Quality of Life Questionnaire 18-item Version (S-QoL 18)

The S-QoL 18 is the short version of a 41-item French self-administered multidimensional QoL questionnaire concerning the present circumstances and designed for patients with schizophrenia [35, 52]. It comprises 18 items describing eight dimensions: psychological well-being (PsW), self-esteem (SE), family relationships (RFa), relationships with friends (RFr), resilience (RE), physical well-being (PhW), autonomy (AU), and sentimental life (SL), together with the index (total score). The dimension scores were calculated by summing the self-rated 5-point Likert scale scores and transferring them linearly onto a scale of 0–100, with higher scores indicating higher QoL. We obtained permission to use and translate the English version of SCQ from the Mapi Research Institute in July 2017.