Exposure to Household Pet Cats and Dogs in Childhood and Risk of Subsequent Diagnosis of Schizophrenia or Bipolar Disorder

A study examining the relationship between exposure to a household pet cat or dog during the first 12 years of life and having a subsequent diagnosis of schizophrenia or bipolar disorder found that exposure to a household pet dog was associated with a significantly decreased hazard of having a subsequent diagnosis of schizophrenia. The researchers looked at 396 individuals with schizophrenia and 381 with bipolar disorder.