Higher reliever use ( RR @ -LSB- @ % CI , @-@ @ -RSB- per categorical score in Asthma Control Questionnaire question no. @ ) , Mori ethnicity ( RR @ -LSB- @ % CI , @-@ @ -RSB- ) and FEV % predicted ( RR @ -LSB- @ % CI , @-@ @ -RSB- per @ % lower ) were associated with future extreme - agonist overuse .