Table 4.

Multivariable-adjusted^† prevalence ratios (95% confidence interval) for independent associations with hearing aid use, - NHANES 2005–2006 and 2009–2010 (n=468).

Characteristic	Prevalence Ratio (95% CI) (n=468)^*	Prevalence Ratio (95% CI) (n=200)^‡
Income to poverty level quintile
1^st	1.0	1.0
2^nd	1.28 (1.00, 1.65)	1.52 (1.08, 2.14)
3^rd	1.61 (1.19, 2.17)	1.66 (1.15, 2.40)
4^th	1.45 (0.96, 2.18)	1.36 (0.72, 2.56)
5^th	1.66 (1.24, 2.21)	1.56 (0.95, 2.57)
Time since last hearing test
< 1 year ago	3.69 (1.82, 7.48)	3.94 (1.44, 10.79)
1–4 years ago	2.38 (1.23, 4.58)	2.52 (0.98, 6.46)
5–9 years ago	1.0	1.0
10+ years ago	0.51 (0.10, 2.50)	0.94 (0.16, 5.48)
Financial Support
Available		1.76 (0.97, 3.19)
Unavailable		1.0

^†

Adjusted for better ear pure tone average and self-reported hearing ability

Data collected in 2005–2006 and 2009–2010

^‡

Data collected in 2005–2006