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Impaired insight into illness is unrelated to subjective happiness, success, and life satisfaction in schizophrenia.

BACKGROUND
Impaired insight into illness is a common feature of schizophrenia. Improved insight is associated with better treatment adherence and clinical outcomes. At the same time, improving insight has been suggested to increase depressive symptoms and diminish quality of life. The aim of this study was to examine the associations between impaired insight and degree of subjective happiness, perceived level of success, and life satisfaction in patients with schizophrenia spectrum disorders.


METHODS
A total of 108 participants with schizophrenia or schizoaffective disorder were included. Data for this study were obtained from our group's previous investigation that examined the relationship between impaired insight and visuospatial attention. Insight into illness was measured by the VAGUS scale, which assesses general illness awareness, accurate symptom attribution, awareness of the need for treatment, and awareness of the negative consequences attributable to the illness.


RESULTS
Our results revealed no association among the VAGUS average and subscale scores and degree of subjective happiness, perceived level of success, and life satisfaction.


CONCLUSIONS
Our study suggests that insight into illness is not related to subjective happiness, life satisfaction, or perceived level of success in patients with schizophrenia, which is in contrast to previous reports that demonstrate an association between insight into illness and depression.