Fig. 3From: Comparisons of hearing threshold changes in male workers with unilateral conductive hearing loss exposed to workplace noise: a retrospective cohort study for 8 yearsComparisons of threshold changes between SNHL and CHL ear during follow-up period by noise level. Each value of columns was calculated by paired t-test. p<0.05; * ΔS=(average of air conduction threshold in 2013 at SNHL ear)–(average of air conduction threshold in 2006 at SNHL ear); † ΔC=(average of air conduction threshold in 2013 at CHL ear)–(average of air conduction threshold in 2006 at CHL ear)Back to article page