Table 3.

Symptom scores based on four questions from the 45 patients included from the EILO register at the Haukeland University Hospital, Bergen (Norway) who were surgically treated for EILO during 2013–2015.

Questiona	Pre-operative	Post-operative	p-valueb
Q1. “Has your symptoms improved after the previous test?”: n (%)		Yes 38 (86.4)†
		No 5 (11.1)†
		Unsure 1 (2.3)†
Q2. Rate your breathing problems (NRS-scale from 0 to 10): mean (95% CI)	7.4 (6.8, 8.1)	2.8 (1.9, 3.6)	<0.001*
Q3a. “I experience inspiratory breathing difficulty when I exercise?” (NRS 0–5): mean (95% CI)	4.2 (3.9, 4.6)	2.6 (2.1, 3.0)	<0.001*
Q4a. “How much are you bothered by your breathing difficulties” (NRS 0–5): mean (95% CI)	3.8 (3.5, 4.2)	1.7 (1.4, 2.1)	<0.001*

EILO, exercise induced laryngeal obstruction; NRS, numeric rating scale (0–10); CI, confidence interval.

^†One patient did not answer the question.

^aAnswer options: 1 = never, 2 = sometimes, 3 = Often, 4 = Almost every time, 5 = Always.

^bp-Value from student paired t-test.

^*p ≤ 0.05.