Using a difference-in-differences model to assess the effects of transportation brokerage services on access to care in KY and GA, researchers found that for both study populations, the increased use of any health care services accompanied with decreased expenditures conditional on any use led to a decrease in total expenditures by $18 per person per month. Compared with average monthly total health care expenditures by study populations, these results imply a 13 percent decrease in total health care expenditures for children with asthma and 4 percent decrease for adults with diabetes.


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