At @ months , carriage of any S. aureus was @ % in group @ , @ % in group @ ( absolute risk reduction -LSB- @ % CI -RSB- , @ % -LSB- @ % -@ % -RSB- ; P = @ ) , and @ % ( absolute risk reduction -LSB- @ % CI -RSB- , @ % -LSB- -@ % to @ % -RSB- ; P = @ ) in group @ .