Those with pre-existing psychiatric condition(s) are at greater risk of binge eating disorder. For example, high-risk groups such as war veterans display a greater number of eating disorder symptoms and have higher rates of BED than the general population. Furthermore, schizophrenia and schizoaffective disorder patients similarly have higher-than-normal rates of BED, and alarmingly high rates (18.7%) of subthreshold BED, often as a result of prescribed atypical antipsychotics, specifically clozapine and olanzapine.