Prevalence of delusional jealousy in schizophrenia

Prevalence rates for delusional jealousy were found, respectively, to be 2.2 and 1.1% in two samples of 183 and 447 schizophrenic inpatients and therefore being lower than the prevalence rates reported in a recent sample studied by Tateyama and coworkers. Five of the 8 patients with delusional jealousy were found to have an additional alcohol abuse or dependence problem. Various other factors such as present age and age at onset of psychosis, gender, and transcultural factors might contribute to the development of the syndrome in schizophrenia.