Table 2

Mean CLE score differences as obtained at glottic and supraglottic laryngeal levels at moderate and maximal exercise intensity before versus after the IMT treatment period in 28 included athletes consecutively referred for work-up of EIIS and diagnosed with EILO at the outpatient clinic at the Pediatric Department of Haukeland University Hospital in Bergen, Norway between May 2012 and May 2014 as estimated from mixed model linear regression analysis

Exercise intensity	Glottic/supraglottic	CLE score differences	SE	95% CI	F-test p value*
Moderate	Glottic	0.11	0.13	−0.16 to 0.37	0.426
Moderate	Supraglottic	0.07	0.13	−0.19 to 0.34	0.596
Maximal	Glottic	0.93	0.13	0.66 to 1.19	<0.001
Maximal	Supraglottic	0.18	0.13	−0.09 to 0.44	0.186
Overall		0.32	0.07	0.19 to 0.54	<0.001

*P value for three-way interaction: 0.009.
CLE, continuous laryngoscopy exercise; EIIS, exercise-induced inspiratory symptom; EILO, exercise-induced laryngeal obstruction; IMT, inspiratory muscle training.