It is possible to find an organic cause just for 1/3 of patients admitted to hospital with chest pain [1]. for the other 2/3 we are dealing with Unexplained Chest Pain [2].

Many studies demonstrated that in a high percentage of people that suffer of UCP there are mental disorders and unfavourable social and psychological factors [3,4,5].

The aim of this study was to estimate prevalence and to outline the psychological, social, anxious, depressive and somatoform state of patients admitted to emergency ward.

We recruited 319 patients, 169 treated in Udine's Emergency ward for chest pain and a control group of 150 patients that went to their family doctor with other symptoms.

Each of them completed self-administered tests searching socio-demographic characteristics, anxiety, depression, somatization, alexithymia, stress factors and child abuse. After 3 months we selected, using the hospitals database, patients that had confirmed diagnosis of UCP.

Prevalence of UCP in patients treated in Udine's emergency room was 45,5% (n77). We found a statistically significant difference between patients with UCP and control healthy group in the somatization subscale of SCL90 (χ2 = 18,2; p < 0,0001) and anxiety subscale of HADS (χ2 = 21,5; p < 0,0001).

A high percentage of hospitalized patients in the emergency ward for chest pain did not receive diagnosis of an organic pathology. It's possible to find in these patients a greater tendency to somatization and presence of anxiety symptoms. This data is in line with what recent literature shows.