Delusions are a common symptom of schizophrenia, and the vast majority of individuals diagnosed with schizophrenia experience delusions at some point during their illness. Delusions are false beliefs that are not based in reality, and they can take various forms, such as paranoid delusions (believing others are plotting against them) or grandiose delusions (having an exaggerated sense of self-importance).
The percentage of people with schizophrenia who are diagnosed with delusions is high, typically ranging from 60% to 90% in various studies and clinical settings. The exact percentage may vary depending on the specific population being studied and the criteria used for diagnosis.
It's important to note that schizophrenia is a complex and heterogeneous disorder, and individuals may experience a variety of symptoms to varying degrees. Delusions, along with other symptoms like hallucinations, disorganized thinking, and negative symptoms, contribute to the clinical picture of schizophrenia. Treatment and support for individuals with schizophrenia aim to address these symptoms and improve overall functioning and quality of life.