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Table 4 Inhaler-usage-education before study start

From: Use and inhalation technique of inhaled medication in patients with asthma and COPD: data from a randomized controlled trial

   Previous inhaler usage education
Device n Education No education
   Number (%)
Metered dose inhaler 84 65 (77) 19 (23)
 With Spacer 24 19 (79) 5 (21)
 Without Spacer 60 46 (77) 14 (23)
Discus 31 29 (94) 2 (6)
Turbohaler 57 47 (82) 10 (18)
Handihaler 66 54 (82) 12 (18)
Breezhaler 40 29 (73) 11 (27)
Ellipta® 22 15 (68) 7 (32)