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Table 3 Comparison of functional gain and speech discrimination among the three hearing aids

From: Effectiveness of a programable body-worn digital hearing aid for older adults in a developing country: a randomized controlled trial with a cross-over design

Hearing aids P02 Clip-II™ Concerto basic®
Average functional gain (dB) 20.14 ± 6.23
(95% CI: 18.66–21.54)
19.41 ± 5.40
(95% CI: 18.15–20.65)
19.44 ± 5.43
(95% CI: 18.15–20.65)
Average speech discrimination (%) 67.8 ± 17.13
(95% CI: 63.80–71.79)
67.6 ± 18.13
(95% CI: 63.37–71.83)
68.8 ± 17.91
(95% CI: 64.62–72.98)
Comparison of hearing aids P02 VS Clip-II™ P02 VS Concerto Basic® Clip-II™ VS Concerto Basic®
Mean difference of functional gain 0.73 ± 4.08
(95% CI: − 0.22 - 1.68)
0.70 ± 4.20
(95% CI: − 0.28 - 1.68)
0.03 ± 2.84
(95% CI: − 0.63 - 0.69)
P-value 0.13 0.16 0.93
Mean difference of speech discrimination 0.22 ± 6.7
(95% CI: − 1.55 - 1.99)
1.00 ± 6.45
(95% CI: − 0.51 - 2.50)
1.22 ± 6.43
(95% CI: − 0.28 - 2.72)
P-value 0.78 0.19 0.11