Psychometric properties of a Chinese version of the Level of Expressed Emotion scale and expressed emotion of family members perceived by patients with severe mental illness.

Key Messages: 1. The psychometric properties of the Chinese version of the Level of Expressed Emotion scale revealed a high level of reliability and validity in a large convenience sample of Chinese outpatients with severe mental illness in Hong Kong. 2. The level of expressed emotion (EE) of family members perceived by patients with severe mental illness was moderate, and that perceived by patients with unipolar disorder was highest, particularly for intrusiveness/hostility and emotional involvement. 3. The level of EE of family members perceived by patients with severe mental illness differed significantly across countries, indicating possible cultural influence