Comparison 6. Children: feedback device versus control/usual care.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
6.1 Inhaler technique (PIF)	2	98	Mean Difference (IV, Random, 95% CI)	‐9.22 [‐33.71, 15.27]
6.2 Asthma control	2	98	Mean Difference (IV, Random, 95% CI)	‐0.02 [‐0.35, 0.32]
6.3 Quality of life (change from baseline)	2	91	Mean Difference (IV, Random, 95% CI)	0.25 [‐0.07, 0.58]
6.4 Quality of life (endpoint)	1		Mean Difference (IV, Random, 95% CI)	Subtotals only