The khat users: a study of khat chewing in Liverpool's Somali men.

This study reports the demographic and social characteristics and level of psychological dysfunction in regular khat users compared with matched non-users. The results indicate that khat users resemble non-users on a number of psychosocial variables and GHQ scores, with no evidence to suggest higher morbidity amongst users. The two groups appear to differ only in the level of their use of nicotine and also in their perception of the harmful effects associated with khat use.