UC San Diego

Late-onset schizophrenia remains an understudied subtype of schizophrenia, despite growing recognition of its impact and distinction from early-onset schizophrenia. This chapter reviews the existing literature on late-onset schizophrenia including beginning with the nomenclature and epidemiology. Then we provide a review of key risk factors and correlates—including genetic risk, sex differences, comorbid sensory loss and physical illness, cognitive and psychiatric symptoms, sociodemographic factors, adverse life events, neuropathology, and inflammation. The chapter ends with clinical issues, including symptoms, differential diagnosis, treatments, and prognosis. Recent studies have examined the role of oestrogen treatments and a new therapy for tardive dyskinesia therapy as well as inflammatory mechanisms in schizophrenia.