Unfavorable cancer mortality-to-incidence ratios in patients with schizophrenia: A nationwide cohort study in Taiwan, 2000-2019.

Objectives: Studies on cancer incidence and mortality in patients with schizophrenia have reported inconsistent findings. In this study, we simultaneously investigated cancer incidence and mortality in patients with schizophrenia and evaluated the cancer mortality-to-incidence ratio (MIR), which is rare in the literature.

Methods: From the Taiwan National Health Insurance Database, we collected the data of 107,489 patients who received a diagnosis of schizophrenia between 2000 and 2019.