Table 2: The arithmetic means, in dB (HL), of the tonal thresholds at the frequencies of 3, 4, and 6 kHz by age range ().

RangeVariableMeanSDMinimumMedian Maximum

15–25R_Mean3464516.986.49−3.336.6770.00
L_Mean3464518.538.11−5.006.70110.00

26–34R_Mean3464628.656.31−3.338.3041.67
L_Mean34646210.587.96−3.3310.0060.00

35–44R_Mean34640515.0510.610.0011.7063.33
L_Mean34640516.1510.590.0013.3366.67

45–79R_Mean34626421.8414.101.6718.3390.00
L_Mean34626423.9013.833.3320.0080.00