We use cookies and other tools to enhance your experience on our website and to analyze our web traffic.
For more information about these cookies and the data collected, please refer to our Privacy Policy.

Childhood Adenotonsillectomy Trial

June 12, 2020

  • Update suggested citation and acknowledgement language

November 15, 2019

July 30, 2018

  • Add blurb about use of forms to dataset introduction

Feburary 7, 2018

  • Various typo fixes and renaming PSG data guide pages

September 25, 2017

  • Add note about linking subject identifier and raw data

June 6, 2017

  • Add notes about XML annotations to PSG intro

January 25, 2017

  • Add complete list of PSG studies where oximetry values exceeded 100 at some point

January 19, 2017

  • Release 0.7.0 dataset
  • Re-add information on README about EEG Spectral Analysis, HRV Analysis, and TAA analysis

December 20, 2016

  • Add notes about PSG file updates over time

December 19, 2016

  • Reformat data listing on index
  • Temporarily remove documentation links for sub-analyses (EEG, HRV, TAA) from main index
  • Add polysomnography introduction

November 11, 2016

  • Release 0.6.0 dataset (adds thoraco-abdominal asynchrony variables)

August 9, 2016

  • Add citation to documentation index

July 21, 2016

  • Update note about nonrandomized subjects in Dataset Introduction
  • Release 0.5.0 of dataset

May 19, 2016

  • Update citations for users of the dataset

April 18, 2016

  • Update citations for users of the dataset

March 3, 2016

  • EDF file sets were refreshed to fix EDF header issues
  • Baseline EDF for 301057 was replaced with a corrected version (previously the study was a duplicate from followup)

December 18, 2015

  • Release 0.4.0 of dataset and update documentation

December 10, 2015

  • Add more detail to HRV documentation

November 25, 2015

  • Add documentation about EEG Spectral Analysis and HRV Analysis

August 18, 2015

  • Add EDF and XML files for 779 non-randomized CHAT subjects. Within 'files' path these files are placed under 'nonrandomized' folders.

July 31, 2015

  • Update NSRR XML annotation files to fix issues with duration calculation in first staging period and to not exclude last staging period in output

July 30, 2015

  • Fix four (4) corrupt EDFs from followup (300185, 300351, 300853, 301049)

September 4, 2014

  • Update count of rows in datasets

July 2, 2014

  • Add Dataset Introduction as a tool to acquaint users to the dataset structure
  • Add link to Forms from README

July 1, 2014

  • Release 0.1.0 CHAT dataset and made available on site

June 30, 2014

  • Added links to Protocol and Manual of Procedures to the README

June 27, 2014

January 10, 2014

January 9, 2014

January 8, 2014

  • Added beginning of PSG Sleep Variable Data Guide

December 3, 2013

  • The CHAT data dictionary is now searchable on sleepdata.org/collection. Browse around, explore, and get back to us if you're interested in seeing more!

Upcoming

We are currently working on making available here:
  • Getting the CHAT data dictionary available as a CSV download
  • Creating a cross-referenced HTML page for each of the 1400+ variables
National Sleep Research Resource
Childhood Adenotonsillectomy Trial