Childhood Adenotonsillectomy Trial

0.14.0 (November 30, 2023)

• Add stonsetp (sleep onset time from PSG) and lights/onset in decimal hour variables
• Add sleep maintenance efficiency variable
• Add harmonized data to followup visit
• Add child_age variable
• Fix calculations and values for AHI variables (omahi3r, omahi3nr, omahi3b, omahi3o)
• The CSV datasets generated from a SAS export are located here:
  • \\rfawin\bwh-sleepepi-chat\nsrr-prep\_releases\0.14.0\

0.13.0 (May 1, 2023)

• Add harmonized PSG sleep architecture variables
• Add annotated survey forms for Pediatric Sleep Question
• Update annotated PSG QS forms
• Remove rcrdtime variable (redundant with timebedp)
• Add slpoutp variable (lights out timing from PSG)
• Remove 11 censored subjects from baseline dataset (inadvertently added back in 0.7.0)
• The CSV datasets generated from a SAS export are located here:
  • \\rfawin\bwh-sleepepi-chat\nsrr-prep\_releases\0.13.0\

0.12.0 (February 22, 2022)

• Create 'harmonized' dataset with key covariates and polysomnography variables
• Update many display names and variable metadata for clarity
• Add cyclic alternating pattern variables
• The CSV datasets generated from a SAS export are located here:
  • \\rfawin\bwh-sleepepi-chat\nsrr-prep\_releases\0.12.0\

0.11.0 (November 18, 2019)

• Remove EEG spectral summary variables
• Remove empty head circumference variables (not collected)
• The CSV datasets generated from a SAS export are located here:
  • \\rfawin\bwh-sleepepi-chat\nsrr-prep\_releases\0.11.0\

0.10.0 (October 22, 2019)

• Swap out BMI z-score change variables (chg_bmiz for bmiz_change)
• Add omai0p to nonrandomized dataset
• Set key neurocognitive variables as commonly used
• Add Epworth scale total variables
• The CSV datasets generated from a SAS export are located here:
  • \\rfawin\bwh-sleepepi-chat\nsrr-prep\_releases\0.10.0\

0.9.1 (March 5, 2018)

• Update variable display names and units
• Update domain name from 'fm' to 'sex_2'
• Update folder names to include abbreviations

0.9.0 (February 12, 2018)

• Incorporate many new variable labels
• Spell out abbreviations and acronyms in variable display names
• Fix ICSD variable display names and calculations
• Remove redundant time in bed and sleep time variables
• The CSV datasets generated from a SAS export are located here:
  • \\rfawin\bwh-sleepepi-chat\nsrr-prep\_releases\0.9.0\

0.8.0 (April 3, 2017)

• Make all variable names lowercase in core CSV datasets
• Change name of subject identifier variable from 'obf_pptid' to 'nsrrid'
• Add ICSD AHI variables
• The CSV datasets generated from a SAS export are located here:
  • \\rfawin\bwh-sleepepi-chat\nsrr-prep\_releases\0.8.0\
• Gem Changes
  • Updated to spout 0.12.0

0.7.0 (January 19, 2017)

• Correct Thoraco-abdominal Asynchrony values based on EDF fixes
• Update HRV and EEG Spectral datasets based on EDF fixes
• Note: EDF fixes are detailed at https://www.sleepdata.org/datasets/chat/pages/polysomnography-introduction.md
• The CSV datasets generated from a SAS export are located here:
  • \\rfa01\bwh-sleepepi-chat\nsrr-prep\_releases\0.7.0\

0.6.0 (November 11, 2016)

• Add Thoraco-Abdominal Asynchrony data calculated and submitted by an NSRR user
• Correct issue with HRV summary dataset from follow-up
• The CSV datasets generated from a SAS export are located here:
  • \\rfa01\bwh-sleepepi-chat\nsrr-prep\_releases\0.6.0\
  • chat-baseline-dataset-0.6.0.csv
  • chat-baseline-eeg-band-summary-0.6.0.csv
  • chat-baseline-eeg-spectral-summary-0.6.0.csv
  • chat-baseline-hrv-5min-0.6.0.csv
  • chat-baseline-hrv-summary-0.6.0.csv
  • chat-followup-dataset-0.6.0.csv
  • chat-followup-eeg-band-summary-0.6.0.csv
  • chat-followup-eeg-spectral-summary-0.6.0.csv
  • chat-followup-hrv-5min-0.6.0.csv
  • chat-followup-hrv-summary-0.6.0.csv
  • chat-nonrandomized-dataset-0.6.0.csv
  • chat-nonrandomized-eeg-band-summary-0.6.0.csv
  • chat-nonrandomized-eeg-spectral-summary-0.6.0.csv

0.5.1 (August 11, 2016)

• Clean up variable display names
• Clarify meaning of slh3c_ck variable
• Fix issue with form linking for SLHQ variables

0.5.0 (July 21, 2016)

• Remove income variable (duplicate)
• Remove siteid variable (replaced by clusterid)
• Clarify income-related variable (par5 and par5_rc) definitions
• Add ref4 (race) to non-randomized subject dataset
• Include updated EEG spectral datasets, including nonrandomized
• The CSV datasets generated from a SAS export are located here:
  • \\rfa01\bwh-sleepepi-chat\nsrr-prep\_releases\0.5.0.rc\
  • chat-baseline-dataset-0.5.0.csv
  • chat-baseline-eeg-band-summary-0.5.0.csv
  • chat-baseline-eeg-spectral-summary-0.5.0.csv
  • chat-baseline-hrv-5min-0.5.0.csv
  • chat-baseline-hrv-summary-0.5.0.csv
  • chat-followup-dataset-0.5.0.csv
  • chat-followup-eeg-band-summary-0.5.0.csv
  • chat-followup-eeg-spectral-summary-0.5.0.csv
  • chat-followup-hrv-5min-0.5.0.csv
  • chat-followup-hrv-summary-0.5.0.csv
  • chat-nonrandomized-dataset-0.5.0.csv
  • chat-nonrandomized-eeg-band-summary-0.5.0.csv
  • chat-nonrandomized-eeg-spectral-summary-0.5.0.csv

0.4.1 (January 19, 2016)

• Fixed naming convention of several forms
• Gem Changes
  • Updated to spout 0.11.0
  • Updated to Ruby 2.3.0

0.4.0 (December 17, 2015)

• Add EEG spectral analysis and HRV analysis datasets
• Add 'nonrandomized' dataset for subjects with screening PSG, but not randomized
• Update race3 categories to 1=White, 2=Black, 3=Other (matches other NSRR datasets)
• Gem Changes
  • Updated to spout 0.10.2
  • Updated to Ruby 2.2.3
• The CSV datasets generated from a SAS export are located here:
  • \\rfa01\bwh-sleepepi-chat\nsrr-prep\_releases\0.4.0\
  • chat-baseline-dataset-0.4.0.csv
  • chat-baseline-eeg-band-summary-0.4.0.csv
  • chat-baseline-eeg-spectral-summary-0.4.0.csv
  • chat-baseline-hrv-5min-0.4.0.csv
  • chat-baseline-hrv-summary-0.4.0.csv
  • chat-followup-dataset-0.4.0.csv
  • chat-followup-eeg-band-summary-0.4.0.csv
  • chat-followup-eeg-spectral-summary-0.4.0.csv
  • chat-followup-hrv-5min-0.4.0.csv
  • chat-followup-hrv-summary-0.4.0.csv
  • chat-nonrandomized-dataset-0.4.0.csv

0.3.0 (September 4, 2014)

Changes

• Removed extraneous variables (e.g. child_age, eligibility criteria)
• Add "Treatment Arm" to standard set of Spout graphs
• The CSV datasets generated from a SAS export are located here:
  • \\rfa01\bwh-sleepepi-chat\nsrr-prep\_releases\0.3.0\
  • chat-baseline-dataset-0.3.0.csv
  • chat-followup-dataset-0.3.0.csv

0.2.0 (August 18, 2014)

Changes

• Removed small set of subjects from dataset due to data being censored by CHAT investigators
• Clarified key variables like male and ageyear_bin with Data Coordinating Center
• Improved display names, descriptions, and labels for many variables
• Set commonly used flag to true for many variables
• Added unittype variable to distinguish type of PSG equipment used for data collection
• The CSV datasets generated from a SAS export are located here:
  • \\rfa01\bwh-sleepepi-chat\nsrr-prep\_releases\0.2.0\
  • chat-baseline-dataset-0.2.0.csv
  • chat-followup-dataset-0.2.0.csv
• Gem Changes
  • Updated to spout 0.9.0.beta1

0.1.0 (July 1, 2014)

Changes

• Created KNOWNISSUES.md as a means to track problematic variables/values in dataset
• Reached 100% Spout coverage
• Fixed issue of Sleep and Health Questionnaire variables containing data from two different questions
• Linked variables to forms
• Added forms that match paper questionnaires
• The SAS export script now drops extraneous variables
• Initial import of the CHAT variables and domains
• The CSV datasets generated from a SAS export are located here:
  • \\rfa01\bwh-sleepepi-chat\nsrr-prep\_releases\0.1.0\
  • chat-baseline-dataset-0.1.0.csv
  • chat-followup-dataset-0.1.0.csv
• Gem Changes
  • Use of Ruby 2.1.2 is now recommended
  • Updated to spout 0.8.0.rc3