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. Author manuscript; available in PMC: 2019 May 1.
Published in final edited form as: Int J Audiol. 2017 Sep 12;57(SUP2):S55–S69. doi: 10.1080/14992027.2017.1370140

Table 5.

Multiple regression summary table showing unstandardized coefficient estimates (b-values) and significance levels (p-values) of predictor variables for outcomes of children with cochlear implants (p-values in parentheses)

Outcome Measure
PLS-Rec CDI-Rec PPVT PLS-Exp CDI-Exp PVC PCC PEACH
(ln)AgeCIa −15.04 (0.002) −15.10 (0.003) −18.45 (<0.001) −13.53 (0.004) −18.60 (0.003) −15.49 (<0.001) −18.34 (0.002) −2.42 (0.51)
WNV 0.80 (<0.001) 0.52 (<0.001) 0.47 (<0.001) 0.60 (<0.001) 0.59 (<0.001) 0.41 (<0.001) 0.59 (<0.001) 0.19 (0.02)
Genderb 3.73 (0.40) 0.31 (0.95) 4.66 (0.26) 3.91 (0.35) −2.32 (0.69) 3.33 (0.35) 7.19 (0.18) 6.35 (0.06)
ADisab −22.41 (0.002) −19.95 (0.001) −20.45 (<0.001) −19.48 (0.003) −23.48 (0.002) −19.69 (<0.001) −24.08 (0.002) −8.20 (0.08)
MatEdc 0.14, 8.04
(0.25)
8.43, 6.19
(0.44)
8.75, 13.53
(0.03)
0.12, 8.76
(0.16)
3.70, 2.38
(0.90)
−1.60, 8.04
(0.07)
−1.69, 11.37
(0.10)
8.68, 7.76
(0.08)
Moded −15.29, 6.39
(0.09)
−7.91, 5.84
(0.30)
−20.94, −1.76
(0.01)
−13.35, 8.91
(0.04)
−10.68, 9.53
(0.18)
−10.56, 2.53
(0.15)
−19.56, 1.01
(0.11)
−3.61, 1.82
(0.58)
Sample size 96 86 106 96 85 104 104 90
Adjusted R2 0.66 0.50 0.62 0.58 0.47 0.58 0.54 0.23

Note. AgeCI = Age at Cochlear Implantation; WNV = Wechsler Non-Verbal Full Scale IQ; ADisab = Additional Disabilities; MatEd = Maternal Education; Mode = Mode of Communication in early intervention; PLS-Rec = PLS-4 Receptive Language (Auditory comprehension) standard score; CDI-Rec = CDI Receptive Language (Language comprehension) developmental quotient; PPVT = PPVT-4 Receptive Vocabulary standard score; PLS-Exp = PLS-4 Expressive Communication standard score; CDI-Exp = CDI Expressive Language developmental quotient; PVC = DEAP Percent Vowel Correct (PVC) standard score; PCC = DEAP Percent Consonant Correct (PCC) standard score; PEACH = PEACH standard score.

a

(ln) indicates that AgeCI was transformed using the natural logarithm.

b

For gender, the coefficient estimate is for female relative to male.

c

For maternal education, the first coefficient estimate is for diploma relative to school, and the second coefficient estimate is for university relative to school. The p-value is for the overall test of MatEd, that is, for the test that both MatEd coefficients are zero.

d

For mode, the first coefficient estimate is for sign/combination relative to oral only, and the second coefficient estimate is for changed or never attended relative to oral only. The p-value is for the overall test of Mode, that is, for the test that both Mode coefficients are zero.