Table 3.

Linear mixed model results, where group represents electrode grouping (basal, middle, apical), Sequence represents implant sequence (first implant, second implant), Age represents age grouping as a binary variable (< 18 years, > 18 years), and time is time since baseline visit in months.

Variable	Estimate	SE	df	t-value	p-value
Intercept	− 520.59	208.61	4,479	− 2.50	0.0126
Group (mid)	− 108.96	129.85	4,479	− 0.84	0.4014
Group (apical)	− 906.97	129.99	4,479	− 6.98	< 0.0001
Sequence (second)	820.28	140.76	4,479	5.83	< 0.0001
Age (< 18)	− 497.37	232.11	4,479	− 2.14	0.0322
Log (time)	414.47	64.16	4,479	6.46	< 0.0001
Group (mid) * sequence	− 205.02	137.41	4,479	− 1.49	0.1358
Group (apical) * sequence	25.82	137.55	4,479	0.19	0.8511
Sequence * log (time)	− 160.36	37.19	4,479	− 4.31	< 0.0001
Group (mid) * log (time)	− 125.01	35.93	4,479	− 3.48	0.0005
Group (apical) * log (time)	− 174.57	35.93	4,479	− 4.86	< 0.0001

SE, standard error; df, degrees of freedom.