Epidemiology

• Age: most cases start in adolescence, but sometimes onset is before puberty or in adult life.

• Social class: patients tend to come from families in social classes 1 and 2.

• Occupation: occupations which demand a slim figure, such as modelling, beauty therapy, and ballet dancing, are over-represented.

• Nationality: the condition mostly affects white subjects living in Western countries. Indeed, it has been suggested that eating disorders could be seen as a 'culture-bound' syndrome of Western societies.

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