Table 3.

Criteria for hospitalisation in anorexia nervosa.

Medical Indications
Adults	Bradycardia < 40 bpm or tachycardia > 110 bpm. Blood pressure < 90/60 mmHg. Symptomatic hypoglycaemia. Hypokalaemia < 3 mmol/l. Hypothermia < 36.1 °C. Dehydration. Uncontrolled vomiting or purging behaviour. Weight < 75% of ideal body weight. Rapid loss of weight (several kgs in a week). Lack of improvement or worsening despite treatment as an outpatient.
Children and adolescents	Bradycardia < 50 bpm. Orthostatic hypotension (increase of >20 bpm in heart rate or drop in blood pressure > 10–20 mmHg with orthostatism). Blood pressure < 80/50 mmHg. Hypokalaemia or hypophosphataemia Rapid weight loss even if the weight is >75% of the ideal body weight. Symptomatic hypoglycaemia. Lack of improvement or worsening despite treatment as an outpatient.
Psychiatric Indications
All ages	Suicidal ideation. Serious concomitant psychiatric illness. Impossibility to eat independently or needs tube feeding. Unfavourable family environment. Lack of cooperation despite treatment as an outpatient.