Academic problem scores were not lower ( RR , 0.91 [ 99.17 % CI , 0.76-1 .08 ] ; P = .14 ) and effects on the risks of binge drinking ( odds ratio [ OR ] , 0.84 [ 99.17 % CI , 0.67-1 .05 ] ; P = .04 ) and heavy drinking ( OR , 0.77 [ 99.17 % CI , 0.56-1 .05 ] ; P = .03 ) were not significantly significant .