Abstract
Correct pressurised metered dose inhalers (pMDI) usage is reportedly sub-optimal in patients and data for Caribbean populations is not available. We studied proficiency of inhaler use in Trinidadian patients, and determined sub-groups to be targeted for educational interventions. Inhaler use by 331 consecutive stable patients with airway disease (over 7 years) was observed and marked on a standard checklist. From direct observation only 41% of patients correctly inhaled, though 92% were confident of accurate technique. Few elderly patients (6%) received appropriate instructions on inhaler technique and only 35% ( n=23/66) understood the rationale for two different inhaler therapies ( P<0.001). More children (33%) and elderly patients (21%) reported escaping drug with use. Multiple regression analysis indicated the independent predictors of correct pMDI were age ( P<0.01) and correct understanding of different inhalers. Intensive patient education in Trinidadian children and elderly patients with airway disorders can enable active participation in disease management and maximal benefit from medication.
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