 Additional findings show that foreign-born children make less ambulatory and emergency visits to hospitals; however, they have considerably higher costs on average when they do, suggesting that immigrant children are sicker or more severely affected during emergencies.This inference is drawn from their lower rates of outpatient and office-based visits.Another study done in Los Angeles County in 2000 found that how children with undocumented parents encountered greater obstacles when trying to access and utilize health care resources.