In the Medicaid subgroup , after 12 months , intervention participation resulted in 42 % fewer ED visits ( difference in mean visits/child , -0.50 ; 95 % CI , -0.81 to -0.18 ) and 62 % fewer hospitalizations ( difference in mean hospitalizations/child , -0.16 ; 95 % CI , -0.30 to -0.014 ) .