DOI: 10.6084/m9.figshare.29488553.v1
title: Metadata fom "Early Cochlear Implantation Supports Phonological Working Memory in Adolescents and Young Adults with Otherwise Typical Executive Functions

description: Varable list:Executive_function_README.xlsx Executive_function_variable list_demographic data.xlsx Executive_function_variable list_results.xlsx Executive_function_variable list_BRIEF_scores.xlsx <br><b>Data availability</b>: The datasets generated during the current study cannot be made available due to ethical and legal obligations.<b>Responsible for data</b>: Karolinska University Hospital, Stockholm Sweden<b>PI:</b><b> </b>Eva Karltorp, CLINTEC, Karolinska Institute<b>Data correspondence:</b>Malin Dahlby Skoog, CLINTEC, Karolinska Institute, malin.dahlby.skoog@ki.seUlrika Löfkvist, CLINTEC, Karolinska Institute, ulrika.lofkvist@ki.se<b>Approval:</b><b> </b>This study has approval from the<b> </b>Swedish Ethical Review Authority (Dnr 2021-04345).<b>Description:</b> Data contains results for tasks assesing complex working memory, phonological working memepry, vocabulary, non-verbal cognitive ability, self-rated executive functions, parent-rated execitive functions and communicative ability, as well as self-reported background information on participants and medical record data about the participants' hearing and cochlear implants.<b>Description of study design:</b><b> </b>The current study is part of a<b> </b>multidisciplinary follow-up study, the TAYACI project. The TAYACI project consists of five sub-projects studying long-term effect of cochlear implants on 1) lingustic and cognitive development 2) hearing 3) balance 4) relationship with etiology 5) mental health.The current study is part of sub-project 1 studying the participants' linguistic and cognitive development, focusing on executive functions. <b>Selection method:</b><br>All potential participants who met inclusion criteria were invited by mail.The inclusion criteria were: First cochlear implant before 30 months of age, 12-22 years old, following normal curriculum and have at least one parent who speaks Swedish.<b>Test procedure:</b><b> </b>Invited participants who consented completed language tasks and questionnaires (self- and parental assessment) at one study occasion. Medical record data were obtained on hearing background.<br><b>Time period examined:</b><br>march 2022 – october 2023<br><code><strong>Geographical location:</strong></code><code> </code><code>Sweden (various regions).</code><pre><b>Number of individuals:</b><br>70<br></pre><b>Population</b>: 43 participants who received cochlear implants before the age of 30 months, are 12-22 years old and follow normal curriculum. All recruited via Karolinska University Hospital.<br>27 participants with typical hearing, 12-22 years old and following normal curriculum. Recruited through advertisements, through contact with schools and through convenience selection.<br><b>Study design:</b><br>Cross-sectional study<br>Cohort study<br><b>Response rate/participation rate:</b><br>Missing data for cochlear implant group: BNT (n = 2), PPVT-4 (n = 4), Reading span task (n = 7), Serial Recall of Nonword (n = 1), Repetition of Nonword (n = 1), CC(C)T, (n = 7). CCC-2 (n = 1), BRIEF-SR (n = 3) and BRIEF (1).<br>Missing data for typical hearing group: Raven's 2 matrices (1), BNT (1), CCC-2 (8), background information (8 ).