Table.

Multivariable odds ratios predicting high frequency and low/mid frequency hearing loss status in never and former smokers: National Health and Nutrition Examination Survey 1999-2004

	Never Smoker			Former Smoker
	n	Odds Ratio	95% CI*	n	Odds Ratio	95% CI*
High Frequency Hearing Loss
Age (years)1	2335	1.12	1.11–1.14	972	1.16	1.13–1.19
Race
White	1010	1.00		552	1.00
Black	456	0.56	0.39–0.79	129	0.20	0.09–0.45
Other	869	0.84	0.54–1.31	291	0.78	0.39–1.54
Gender
Female	1460	1.00		459	1.00
Male	875	3.95	2.81–5.55	513	5.41	3.19–9.19
Education
Less than high school	595	1.00		261	1.00
High school or equivalent	468	0.74	0.47–1.17	207	0.63	0.31–1.26
Some college or greater	1272	0.42	0.25–0.70	504	0.56	0.27–1.18
Diabetic
No	2165	1.00		875	1.00
Yes	170	2.26	1.34–3.80	97	2.21	1.17–4.16
Exposed to Firearm Noise
No	2236	1.00		895	1.00
Yes	99	1.64	0.97–2.78	77	1.72	0.77–3.83
Exposed to Loud Occupational Noise
No	1786	1.00		629	1.00
Yes	549	1.36	0.94–1.98	343	1.44	0.86–2.39
Ln Cotinine Level (ng/mL)2	2335	1.08	0.97–1.20	972	1.40	1.23–1.61
Low/Mid Frequency Hearing Loss
Age (years)1	2335	1.08	1.01–1.10	972	1.13	1.10–1.16
Race
White	1010			552
Black	456	0.58	0.34–1.00	129	0.63	0.31–1.29
Other	869	0.93	0.52–1.63	291	1.38	0.74–2.56
Gender (Male Vs Female)
Female	1460			459
Male	875	1.33	0.82–2.16	513	0.93	0.61–1.42
Education
Less than high school	595			261
High school or equivalent	468	0.70	0.39–1.24	207	1.07	0.59–1.96
Some college or greater	1272	0.63	0.33–1.18	504	0.71	0.46–1.11
Diabetic (Yes vs No)
No	2165			875
Yes	170	2.19	1.23–3.88	97	1.00	0.44–2.27
Exposed to Firearm Noise
No	2236			895
Yes	99	0.57	0.21–1.54	77	1.04	0.44–2.43
Exposed to Loud Occupational Noise
No	1786			629
Yes	549	0.91	0.63–1.32	343	2.30	1.45–3.64
Ln Cotinine Level (ng/mL)2	2335	1.14	1.02–1.29	972	1.30	1.10–1.54

^*CI=confidence interval

¹Odds ratio and confidence interval are for a 1 year increment

²Odds ratio and confidence interval are for a 1 log unit increase