Pedro Miguel Aparicio Chorao|Ana Margarida Pereira|João Fonseca
Inhaler devices in asthma and COPD – An assessment of inhaler technique and patient preferences
Universidade do Porto|Centre for Health Technology and Services Research|Hospital de São João|Universidade do Porto|Centre for Health Technology and Services Research|Universidade do Porto
incorrect use inhaler devices remains obstacle respiratory diseases management aimed evaluate frequency inhaler technique errors determine devices perceived easiest favourite use study association device type demographics patient preferences inhaler technique itcrosssectional assessment 301 adults asthma 194 chronic pulmonary obstructive disease undergoing treatment aerolizer autohaler breezehaler diskus handihaler mdi without spacer miathaler novolizer respimat andor turbohaler patients completed selfassessment questionnaires facetoface interview demonstration inhaler technique rate wrong steps number wrong steps number total steps rws primary outcome adjusted odds ratio aor 95 confidence intervals ci presenting 1 errors computedfrom 464 inhaler technique performances median rws 18 turbohaler 21 diskus 19 chosen easiest novolizer 18 diskus 18 turbohaler 17 favourite daily use females aor 268 95 ci 155465 vs males patients 64 yr aor 273 95 ci 115648 vs 45 yr patients using aerolizer handihaler aor 324 95 ci 113932 aor 371 95 ci 138102 respectively likely perform errors otherwise association found including using favourite device aor 143 95 ci 084242the frequency inhaler technique errors high device clearly preferred others using preferred inhaler device associated less errors