Table 4.

Mean deviations of user four-frequency-average gain (4FA, gains averaged over 0.5, 1, 2, 4 kHz) from prescribed gains at low (50 dB SPL), mid (65 dB SPL) and high (80 dB SPL) input levels. Mean deviation of user maximum power output (MPO) from prescribed output is shown in the last column.

		User gain minus Target gain (dB)			User minus Target MPO
		Low	Mid	High	MPO
DSL group	Mean	−0.5	−1.5	−1.4	−0.3
	SD	2.4	2.7	3.1	4.8
	CI	−0.9 to −0.2	−1.9 to −1.1	−1.9 to −1.0	−0.9 to 0.4
	Range	−10.3 to 3.5	4.5 to 2.7	−11.8 to 4.5	−16.8 to 10.3
NAL group	Mean	−0.7	0.1	0.8	−0.1
	SD	2.7	2.0	2.3	4.1
	CI	−1.0 to −0.4	0.1 to −0.1	0.5 to 1.0	−0.6 to 0.4
	Range	−11.3 to 5.3	−8.8 to 6.3	−12.3 to 6.8	−22.3 to 10.3