TABLE 3.

Hierarchical Linear Modeling of Predictors

	Estimated Coefficient	SE	95% CI	P
MSEL
Intercept	0.384	0.274	−0.153 to 0.921	.16
Age	0.306	0.032	0.244 to 0.368	<.001***
Cohort 1–2	−0.096	0.31	−0.704 to 0.511	.76
Cohort 2–3	−0.378	0.428	−1.217 to 0.462	.38
Age:cohort 1–2	0.403	0.037	0.332 to 0.475	<.001***
Age:cohort 2–3	−0.119	0.048	−0.213 to −0.026	.01*
VABS
Intercept	−1.72	1.489	−4.639 to 1.198	.25
Age	0.513	0.039	0.437 to 0.589	<.001***
Cohort 1–2	3.28	1.683	−0.018 to 6.579	.05
Cohort 2–3	2.054	2.385	−2.621 to 6.729	.39
Age:cohort 1–2	0.281	0.049	0.186 to 0.377	<.001***
Age:cohort 2–3	−0.219	0.074	−0.365 to −0.073	.003**
PLS
Intercept	1.369	2.241	−3.023 to 5.761	.54
Age	0.935	0.068	0.801 to 1.068	<.001***
Cohort 1–2	2.718	2.501	−2.183 to 7.619	.28
Cohort 2–3	−0.955	3.479	−7.773 to 5.863	.78
Age:cohort 1–2	0.263	0.075	0.116 to 0.410	<.001***
Age:cohort 2–3	−0.234	0.115	−0.460 to −0.008	.04*
LEAQ
Intercept	1.514	1.02	−0.486 to 3.513	.14
Age	0.268	0.041	0.188 to 0.347	<.001***
Cohort 1–2	−0.668	1.15	−2.923 to 1.587	.56
Cohort 2–3	−1.283	1.588	−4.396 to 1.830	.42
Age:cohort 1–2	0.166	0.049	0.071 to 0.261	<.001***
Age:cohort 2–3	−0.243	0.061	−0.363 to –0.124	<.001***
PSI
Intercept	61.561	10.622	40.742 to 82.380	<.001***
Age	3.005	0.283	2.450 to 3.561	<.001***
Cohort 1–2	−7.356	11.998	−30.872 to 16.160	.54
Cohort 2–3	−33.579	17.142	−67.177 to 0.019	.05
Age:cohort 1–2	0.357	0.356	−0.341 to 1.055	.32
Age:cohort 2–3	1.328	0.572	0.208 to 2.448	.02*

Cohort 1, normal cognitive skills and adaptive behavior, underwent cochlear implantation, not lost to follow-up (n = 99); cohort 2, EDI, underwent cochlear implantation, not lost to follow-up (n = 32); cohort 3, EDI, hearing aids only, not lost to follow-up (n = 29); cohort 1–2 and cohort 2–3, cohort 2 is the baseline, cohorts 1 and cohort 3 compared against it; and age:cohort 1–2 and age:cohort 2–3, interaction between age and cohorts 1–2 or cohorts 2–3.

^*P < .05,

^**P < .01,

^***P < .001.