Table 1. Characteristics of age-related hearing impairment (ARHI) cases and controls in the GERA cohort.

Note that speech reception threshold (SRT) and speech discrimination score (SDS) were only available on a small portion of the cohort. For dichotomous variables, N (% of non-missing), and for continuous variables, mean (sd), unless otherwise indicated.

	Non-Hispanic white		Latino		East Asian		African American
	Case	Control	Case	Control	Case	Control	Case	Control
ARHI	6527 (12.5%)	45882	481 (8.4%)	5215	398 (7.3%)	5040	146 (6.4%)	2133
Female	3087 (47.3%)	28454 (62.0%)	212 (44.1%)	3312 (63.5%)	156 (39.2%)	3047 (60.5%)	73 (50.0%)	1277 (59.9%)
Age	75.1 (9.1)	67.0 (13.0)	73.2 (9.5)	60.5 (14.1)	74.6 (9.5)	61.1 (13.9)	75.1 (9.7)	64.9 (13.2)
SRT N	3738 (57.3%)	424 (0.9%)	248 (51.6%)	46 (0.9%)	214 (53.8%)	28 (0.6%)	96 (65.8%)	28 (1.3%)
SRT # Meas	2.0 (1.2)	1.1 (0.2)	2.1 (1.5)	1.1 (0.3)	2.0 (1.1)	1.1 (0.3)	1.8 (1.0)	1.2 (0.8)
SRT Median [IQR]	32.5 [22.5–43.8]	10.0 [5.0–15.0]	32.5 [25.0–42.5]	7.5 [5.0–12.5]	35.0 [25.0–47.5]	10.0 [7.2–13.1]	35.0 [25.0–42.5]	10.6 [10.0–15.0]
SDS N	3793 (58.1%)	428 (0.9%)	250 (52.0%)	47 (0.9%)	218 (54.8%)	28 (0.6%)	97 (66.4%)	28 (1.3%)
SDS # Meas	2.0 (1.2)	1.1 (0.2)	2.1 (1.5)	1.1 (0.3)	2.0 (1.2)	1.1 (0.3)	1.8 (1.1)	1.2 (0.8)
SDS Median [IQR]	90.0 [79.0–96.0]	100.0 [100.0–100.0]	88.0 [74.0–96.0]	100.0 [100.0–100.0]	86.0 [73.4–96.0]	100.0 [100.0–100.0]	92.0 [82.0–96.0]	100.0 [100.0–100.0]
Noise N	3826 (58.6%)	429 (0.9%)	254 (52.8%)	47 (0.9%)	220 (55.3%)	29 (0.6%)	97 (66.4%)	28 (1.3%)
Noise	2213 (57.8%)	194 (45.2%)	153 (60.2%)	21 (44.7%)	129 (58.6%)	11 (37.9%)	54 (55.7%)	10 (35.7%)