Predicted efficacy in the groups aged 6 weeks ( n = 2467 , 154 events ) or 10 weeks ( n = 2420 , 106 events ) at first dose against radiologic pneumonia were 32 % ( 95 % CI 19-43 % ) and 33 % ( 95 % CI 21-44 % ) , against hospitalisation 14 % ( 95 % CI 3-23 % ) and 17 % ( 95 % CI 7-26 % ) , and against mortality 17 % ( 95 % CI -3 to 33 % ) and 16 % ( 95 % CI -3 to 32 % ) respectively .