Comparison 25. Adults ‐ Crossover design ‐ Challenge testing: Turbuhaler vs pMDI (mean absolute values).

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 FEV1 (L) ‐ Adults: Increase post Mch challenge and bronchodilator	1	32	Std. Mean Difference (IV, Fixed, 95% CI)	‐0.13 [‐0.82, 0.57]
1.1 Short term studies (min‐hours)	1	32	Std. Mean Difference (IV, Fixed, 95% CI)	‐0.13 [‐0.82, 0.57]
2 FEV1 (L) ‐ Children: Increase post exercise challenge and bronchodilator	1	22	Mean Difference (IV, Fixed, 95% CI)	0.11 [‐0.71, 0.93]
2.1 Short term studies (min‐hours)	1	22	Mean Difference (IV, Fixed, 95% CI)	0.11 [‐0.71, 0.93]