Fig 1.
Type of occupational or recreational noise exposure reported by participants of the Blue Mountains Hearing Study at baseline (1997–9).
Fig 2.
Mean air-conduction thresholds at baseline in those with or without occupational noise exposure.
Age- and sex-adjusted mean hearing thresholds for participants who did not report occupational noise exposure, pure-tone average threshold 0.25–8 kHz, ≤ 25 dB HL (□); age and sex adjusted mean hearing thresholds for participants who reported occupational noise exposure, pure-tone average threshold 0.25–8 kHz, > 25 dB HL (●).
Table 1.
Association between severity and duration of exposure to workplace noise and prevalent hearing loss, presented as Odds Ratio (OR) and 95% Confidence Interval (CI).
Table 2.
Association between combined severity and duration of exposure to workplace noise and prevalent hearing loss, presented as Odds Ratio (OR) and 95% Confidence Interval (CI).
Table 3.
Association between exposure to workplace noise and the 10-year incidence and progression of hearing loss, presented as Risk Ratios (RR) and 95% Confidence Interval (CI).