Westhus 1998.

Methods	Quasi‐experimental study; a convenience sample of children were "randomly assigned to one of two equal groups"
Participants	Children (7 to 12 years of age) with asthma; sample included 154 children (African American and Caucasian)
Interventions	Mnemonic device to assist in learning to use the MDI (3 colourful cards with keywords and animated pictures representing MDI use)
Outcomes	At 2 points in time, participants answered demographic and medical history questions, had their inhaler technique evaluated, received mnemonic or standard instructions and performed pulmonary function tests. An inhaler checklist measured skill in MDI use
Notes	Not clear from the abstract whether this is a truly randomised study. Attempted to contact NK Westhus (lead author) via the University of St Louis; email sent on 26 August 2016; no response received at the time of publication

BDP: beclomethasone dipropionate; BTS: British Thoracic Society; ICS inhaled corticosteroids; LABA: long‐acting beta‐agonist; MDI: metered dose inhaler.