The effect of the educational intervention was a 1 % reduction in approximated risk ( risk ratio [ RR ] 0.99 , 95 % confidence interval [ CI ] = 0.96 to 1.01 ) of antibiotics being dispensed , while the combined effect of the educational and pop-up reminder intervention was a 4 % reduction in approximated risk ( RR 0.96 , 95 % CI = 0.94 to 0.98 ) .