Injection-site reactions occurred in more patients given albiglutide than in those given liraglutide ( 129 % vs 54 % ; treatment difference 75 % [ 95 % CI 36-114 ] ; p = 00002 ) , whereas the opposite was the case for gastrointestinal events , which occurred in 490 % of patients in the liraglutide group versus 359 % in the albiglutide group ( treatment difference -131 % [ 95 % CI -199 to -64 ] ; p = 000013 ) .