Fig. 3From: Prevalence and incidence of idiopathic subglottic stenosis in southern and central Alberta: a retrospective cohort studyScatter plot representing annual idiopathic subglottic stenosis incidence based on new diagnosis over 2010–2019. Blue line represents the mean annual incidence rate at 0.71/100,000 per year. Dotted line represents the trend line with a significant correlation of r2 = 0.578, p = 0.011Back to article page