Sleep - Leadership/Facilitator Contact Info

Welcome to the Sleep Special Interest Group (SIG),

The goal of the Sleep SIG is to provide a forum to promote the dissemination of sleep and circadian data and their relationship to other health attributes in the Hispanic Community Health Study/ Study of Latinos (HCHS/SOL). We hope to identify and facilitate new analyses and manuscripts from this rich self-reported and objective data, as well as to stimulate new ancillary studies. We welcome members with a wide range of expertise and investigators at any stage in their careers.

The Sleep SIG meets on the third Wednesday of every other month at 4pm Eastern / 1pm Pacific.

HCHS/SOL is a cohort study of 16,415 Hispanic/Latino adults aged 18-74 years from randomly selected households in four US cities (Chicago, Miami, Bronx, San Diego) with baseline clinic examination (2008-2011), yearly telephone follow-up assessments, and ongoing second clinic examination (2014-2017). As part of the HCHS/SOL baseline exam, Sleep history and symptoms were assessed using the Sleep Heart Health Study Sleep Habits Questionnaire and the Epworth Sleepiness Scale (ESS). Participants were instructed on use of a sleep apnea monitor for overnight recording (ARES Unicorder). This self-applied device measures airflow using a nasal pressure cannula and transducer, hemoglobin oxygen saturation and pulse rate (reflectance oximetry), head movement and position (actigraphy), and a microphone to record snoring levels. Sleep records (n=14,400) were scored at a central sleep reading center. Certified polysomnologists manually edited artifacts, identified periods of sleep, and annotated each respiratory event with its associated oxyhemoglobin desaturation. Respiratory events were identified as a 50% or greater reduction in airflow lasting greater than or equal to 10 seconds.

The HCHS/SOL Ancillary Study “Sueño” (2010-2013) enrolled 2,252 HCHS/SOL participants <65 years of age, and were asked to wear an Actiwatch device for 7 days.

Researchers interested in HCHS/SOL Sleep are encouraged to consult the following articles:

• Sleep-disordered Breathing in Hispanic/Latino Individuals of Diverse Backgrounds. ( http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3977733/?tool=pmcentrez )
• Reproducibility of a Standardized Actigraphy Scoring Algorithm for Sleep in a US Hispanic/Latino Population. ( http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4531418/?tool=pmcentrez )
• Genetic Associations with Obstructive Sleep Apnea Traits in Hispanic/Latino Americans. ( http://www.ncbi.nlm.nih.gov/pubmed?cmd=Retrieve&list_uids=26977737 )

In addition, please see the following sections of the HCHS/SOL website:

• Publications: ( https://www2.cscc.unc.edu/hchs/view/biblio/title )
• Manuals and Forms: ( https://www2.cscc.unc.edu/hchs/manuals-forms )
• Opportunities for new Investigators: ( https://www2.cscc.unc.edu/hchs/New%20Investigator%20Opportunities )
• Publicly available data: ( https://biolincc.nhlbi.nih.gov/home and ( https://sleepdata.org/ )

We look forward to hearing from you!

Phyllis C. Zee, MD, PhD
Professor of Neurology and Neurobiology
Director, Center for Circadian and Sleep Medicine
Northwestern University Feinberg School of Medicine

ALberto R. Ramos, MD, MS, FAAN, FAASM
Professor of Clinical Neurology
Research Director Sleep Medicine Program
Miller School of Medicine
University of Miami

Susan Redline, MD, MPH
Professor of Medicine
Harvard Medical School
Brigham and Women’s Hospital