Dr. Michael Grandner
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Penn Sleep

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Current Projects

I am currently working on the following projects:

Cardiometabolic Health And Relationships To Sleep (CHARTS Study)

This study is funded by the National Heart, Lung and Blood Institute at the National Institutes of Health (K23HL110216). The overall aim of this observational study is to evaluate whether habitual short sleepers (6 hours or less) differ from 7-8 hour sleepers in terms of cardiovascular and metabolic function. Other domains are assessed as well, including sleepiness, performance, behavior, and psychological functioning. This study includes (1) an online survey, (2) an intake exam, (3) home sleep testing, (4) 2-week home monitoring, and (5) 3-night in-lab study. Data collection is ongoing. Visit the study website.

Sleep and Healthy Activity, Diet, Environment, and Social Factors (SHADES Study)

This study is funded by the National Institute of Environmental Health Sciences at the National Institutes of Health (R21ES022931). The overall aim of this study is to characterize the social, environmental, and behavioral determinants of habitual short sleep duration. This study includes (1) a population-based survey of the Philadelphia area, (2) geospatial mapping of survey data superimposed with existing neighborhood-level data, and (3) a 2-week in-depth home monitoring study. Data collection is ongoing. Visit the study website.

Short Sleepers: Neurobehavioral, Metabolic and Biopsychosocial Characteristics (SHORT SLEEP Study)

Habitual short sleepers and habitual normal sleepers enrolled in a study to investigate health-related associations with habitual sleep duration. Participants collect data during a 2-week assessment period in their home and come into the lab for assessments of neurobehavioral performance, biopsychosocial functioning, metabolism, and polysomnographic sleep. Data collection complete. Data analysis ongoing.

Long-Term Follow-Up of Short and Long Sleepers

The seminal studies of short and long sleep were conducted in the late 1960s and early 1970s. These studies were conducted by Dr. Ernest Hartmann, a Psychiatrist who devoted his life to studying the functions of sleep and dreams. In collaboration with Dr. Hartmann, this project involved a thorough search of all the remaining records from those studies. The available information was catalogued, and a list of names of all of the participants (along with whether they were a short or long sleeper at the time) was generated. This project involves going through that list and tracking down as many of those participants as possible and asking them about their sleep and how their sleep has impacted their life over the past decades. This project was started before Dr. Hartmann passed away last year. We are currently in the process of re-contacting participants.

Sleep and Health in the American Population

Secondary analysis of population-wide data for the purpose of characterizing sleep problems in the general population, as well as identify disparities in sleep health and exame relationships among these disparities and other health outcomes. More specifically, predictors of sleep disturbance from the sociodemographic domain (e.g., gender, age, ethnicity, income, education, marital status, employment), mental health (e.g., depression, anxiety, quality of life) and health (e.g., heart disease, diabetes, stroke, smoking, exercise, alcohol use) are being investigated. Analyses ongoing.

Current projects utilizing the Behaviroal Risk Factor Surveillance System (BRFSS) include: (1) Disparities in sleep disturbance associated with race/ethnicity and socioeconomics [published], (2) Sleep disturbance and obesity, diabetes and exercise [published], (3) Sleep disturbance and cardiometabolic disease [published], (4) Sleep disturbance and daytime tiredness decrease with age [published], (5) Sociogeographic correlates of sleep disturbance [published], (6) Perceived racism and sleep disturbance [published], (7) Sleep duration versus sleep insufficiency [published], (8) Social and behavioral determinants of sleep insufficiency [submitted], (9) Spatial analysis of sleep insufficiency by county [in preparation], and others.

Current projects utilizing the National Health and Nutrition Examination Survey (NHANES) include: (1) Sleep duration and C-reactive protein [published], (2) Sleep symptoms and dietary intake [published], (3) Sleep duration and dietary intake [published], (4) Disparities in sleep symptoms relative to demographics and socioeconomics [submitted], (5) Disparities in sleep duration [in preparation], (6) Sleep symptoms and metabolic syndrome [submitted], (7) Insomnia and cardiometabolic risk factors [submitted], and others.

 


© 1995-2013 Michael Grandner

Office: 3535 Market Street, Suite 670, Philadelphia, PA 19104

Phone: (215) 615-1756 | Email:

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