TY - JOUR
T1 - The effects of age of cochlear implantation on speech perception outcomes in prelingually deaf children
AU - Harrison, Robert V.
AU - Panesar, Jaswinder
AU - El-Hakim, Hamdy
AU - Abdolell, Mohamed
AU - Mount, Richard J.
AU - Papsin, Blake
PY - 2001
Y1 - 2001
N2 - We have made a retrospective analysis on 70 prelingually deaf children (78% congenital; age range 2-15 years) followed for up to 5 years post-implant during which both closed set speech perception tests (TAC, WIPI) and open set tasks (PBK, GASP) were administered. We used a binary partitioning algorithm to optimally divide our dataset on the basis of age at implantation This technique achieves an optimal split when the heterogeneity of the data is most reduced (maximal drop in deviance). For the closed set speech perception tests (TAC and WIPI) partitioning best divided-out data at age 4.4 years. For the open set tests optimal division was at a higher age of implantation (GASP word, 5.6 years; PBK word, 8.4 years). Using these partitioning values, we have found statistically significant differences between rate of improvement of scores in the younger implanted children compared with those implanted later.
AB - We have made a retrospective analysis on 70 prelingually deaf children (78% congenital; age range 2-15 years) followed for up to 5 years post-implant during which both closed set speech perception tests (TAC, WIPI) and open set tasks (PBK, GASP) were administered. We used a binary partitioning algorithm to optimally divide our dataset on the basis of age at implantation This technique achieves an optimal split when the heterogeneity of the data is most reduced (maximal drop in deviance). For the closed set speech perception tests (TAC and WIPI) partitioning best divided-out data at age 4.4 years. For the open set tests optimal division was at a higher age of implantation (GASP word, 5.6 years; PBK word, 8.4 years). Using these partitioning values, we have found statistically significant differences between rate of improvement of scores in the younger implanted children compared with those implanted later.
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U2 - 10.1080/010503901750166727
DO - 10.1080/010503901750166727
M3 - Article
C2 - 11409781
AN - SCOPUS:0034744017
SN - 0107-8593
VL - 30
SP - 73
EP - 78
JO - Scandinavian Audiology, Supplement
JF - Scandinavian Audiology, Supplement
IS - 53
ER -