Dataset introduction

The MESA datasets posted on the NSRR have gone through various post-processing steps in order to prepare the data for more widespread sharing. The datasets were based upon the data prepared by the MESA Coordinating Center. Changes and updates to the source data and variable definitions have been coordinated in the mesa-data-dictionary repository.

The documentation folder contains more detailed descriptions of the data collection protocols and source datasets.

Structure of the dataset

For the NSRR, we have chosen key datasets and variables from the core MESA datasets and collapsed them into new, NSRR-specific datasets. The following individual MESA Sleep datasets have been converted and processed into the NSRR-specific format:

1. Actigraphy (MESAe5_SleepActigraphy_20140617)
2. Polysomnography (MESAe5a113SleepPolysomn_20150630)
3. Sleep Questionnaire (MESAe5a113SleepQuestionnaire_20140617)

Subject identifier

Datasets and raw data files are keyed on the identifier (mesaid) used in MESA BioLINCC data releases.

Questions?

Please reach out to us at support@sleepdata.org or in the Forum if you have questions.