Table 2.

Exemplar matched pairs (age- and hearing status–matched).

Variable	Most expected pattern		Reduced performance in quiet		Mild hearing loss
	Cog impaired	Control	Cog impaired	Control	Cog impaired	Control
Age	69	67	63	63	75	74
PTA	6.25	8.75	25	27.5	33.5	38.75
Education	Post-grad	College grad	Post-grad	Post-grad	Associate deg	Post-grad
MOST	15	24	16	26	18	26
SICSPAN	24	32	18	30	31	19
Diagnosis	Mild dementia/AD	—	Mild dementia	—	MCI	—
Condition	Speech performance (%)		Speech performance (%)		Speech performance (%)
Quiet	97.5	100	58.75	100	77.5	82.81
SEM noise
−4 dB SNR	52.5	77.5	45	75	31.25	39.06
0 dB SNR	68.75	92.5	48.75	93.75	40	59.38
+4 dB SNR	85	95	57.5	95	41.25	67.19
Speech masker
−4 dB SNR	13.75	67.5	20	75	6.25	23.44
0 dB SNR	61.25	86.25	31.25	85	30	34.38
+4 dB SNR	76.25	92.5	41.25	95	41.25	71.88

Note. Em dashes indicate no diagnosis. PTA = pure-tone average; MOST = Memory Orientation Screening; SICSPAN = Size Comparison Span; AD = Alzheimer’s disease; MCI = mild cognitive impairment; SEM = speech-envelope-modulated; SNR = signal-to-noise ratio.