Comparison 5. Adults: feedback device versus control/usual care.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
5.1 Inhaler technique (PIF)	1		Odds Ratio (M‐H, Random, 95% CI)	Totals not selected
5.2 Correct inhaler technique (at follow‐up)	1		Odds Ratio (M‐H, Random, 95% CI)	Subtotals only
5.3 Inhaler technique score	1		Other data	No numeric data
5.4 Asthma control	1		Mean Difference (IV, Random, 95% CI)	Subtotals only
5.5 Quality of life	2	100	Mean Difference (IV, Random, 95% CI)	0.38 [‐0.01, 0.77]
5.6 Quality of life (responders)	1		Odds Ratio (M‐H, Random, 95% CI)	Subtotals only