Correlation between insight and internalized stigma in patients with schizophrenia

BACKGROUND: The relationship between insight and internalized stigma in patients with schizophrenia is important both for theoretical and practical reasons because of its close association with patients' willingness to seek (or accept) care for their mental illness. OBJECTIVE: To investigate the relationship between insight and internalized stigma in patients with schizophrenia in mainland China. METHODS: 65 inpatients and 27 outpatients with schizophrenia who had a median duration of four years of illness completed Chinese versions of two self-report questionnaires—the Internalized Stigma of Mental Illness (ISMI) scale and the Modified Consumer Experiences of Stigma Questionnaire (MCESQ). The patients were also assessed by senior psychiatrists using the Scale for Assessment of Positive Symptoms (SAPS) and the Scale for Assessment of Negative Symptoms (SANS). Patients were divided into those with and without insight into their illness based on the score of the insight item on the Chinese version of the Brief Psychiatric Rating Scale. RESULTS: 49 patients were classified as having insight and 43 classified as lacking insight. Compared to patients with insight, those without insight had a significantly shorter duration of illness, were more likely to be inpatients, and (at trend level only) had more prominent positive and negative symptoms. The ‘alienation’ subscale score of the ISMI was significantly higher in patients with insight but none of the remaining six subscales in the two instruments were different between the two groups and only 4 of the 48 separate items in the two scales were significantly different between the groups. Logistic regression analysis found no relationship between lack of insight and the scores of the two self-completion stigma scales or the scores of the two clinician-administered symptom scales. CONCLUSION: This study among inpatients and outpatients with schizophrenia in China does not support findings of previous studies that report increased experience of stigma among patients who have better insight. The measures of stigma used in the study need further revision and validation for use in China and studies with a wider spectrum of patients that make more detailed assessments of insight and that follow fluctuations in insight and experiences of stigma over time are needed to clarify the complex relationship between these two phenomena in patients with schizophrenia.