To determine whether functional and psychosocial outcomes associated with h
earing impairment are a direct result or stem from prevalent comorbidity, w
e analyzed the impact of two levels of reported hearing impairment on healt
h and psychosocial functioning one year later with adjustments for baseline
chronic conditions. Physical functioning, mental health, and social functi
oning decreased in a dose-response pattern for those with progressive level
s of hearing impairment compared with those reporting no impairment. Our re
sults demonstrate an independent impact of hearing impairment on functional
outcomes, reveal increasing problems with higher levels of impairment, and
support the importance of preventing and treating this highly prevalent co
ndition.