R. Sue Day, PhD

Photo of R. Sue Day

Associate Professor, Epidemiology, Human Genetics & Environmental Sciences
rena.s.day@uth.tmc.edu

Dr. Day’s journey to public health began in Lubbock, TX, her hometown. After graduating from pre-med, home economics and secondary education studies at Texas Tech, she worked as a home economist and nutrition educator in Midland and Odessa, TX. Originally, Dr. Day came to Houston to meet faculty at the medical school, thinking she would go into medicine. She accidentally walked into the UT School of Public Health and a recruiter convinced her to study public health instead. She has been at the school 34 years. “Obviously they won me over!” Remembering her time as a nutritionist, she decided she really wanted to understand prevention of disease through nutrition.

Currently, she focuses on overweight and obesity’s effect on cardiovascular disease among firefighters. Dr. Day explains, “I often get asked, ‘why study firefighters?’, because many people think they must all be fit, muscular and have great dietary habits.  Unfortunately, the majority (78.4%) of firefighters are overweight or obese. Given how many firefighters struggle with their weight, it is no surprise they also suffer from a high rate of diseases related to obesity. Cardiovascular disease is the leading cause of firefighter line of duty death, accounting for almost half of deaths. I am so excited that we have just been funded by FEMA to implement the first health and wellness intervention for a national sample of volunteer firefighters with a focus on healthy eating, fitness and hydration.  This project is a great example of the type of public health work I hoped to do when I started my career at UTSPH.  Studies like this allow me to work directly with the people benefiting from the project and are indeed one of my passions.”

Click to read CBS and CNN’s take on Dr. Day’s research.

Download CV

Additional Research Projects:

NHLBI R34 HL125790
A Clinic and Tech-based Diet and Fitness Intervention for Volunteer Firefighters
Principal Investigator Subcontract
$631,000 09/01/2015 – 08/31/2018
Determine the comparative effectiveness of an occupational health clinician administered web- mobile lifestyle program The First Twenty® compared to the American Heart Association Life’s Simple 7 using a cluster randomized controlled trial among volunteer firefighters. Primary outcomes include weight, dietary intake, physical activity and cardiovascular risk score.

FEMA – Federal Emergency Management Agency EMW- EMW-2013-FP-00983
The First Twenty for Volunteer Firefighters
Principal Investigator
$1,571,946 08/01/2014–07/31/2017
Assess the efficacy of an internet-based firefighter health and wellness program, The First Twenty, for volunteer fire departments using a cluster randomized controlled trial in a national sample of volunteer firefighters. 

Current Projects

First Twenty for Volunteer Firefighters

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A cluster randomized controlled trial to address volunteer firefighters' (VFF) obesity to determine efficacy and acceptability of an inexpensive, culturally tailored internet based health and wellness intervention.

Fuel 2 Fight

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Examination of obesity, dietary intake, physical activity, and energy balance in the lifestyle environment of 1,000 firefighters housed in 60 fire stations within 20 fire departments across the nation.

Recent Publications

Relationship between homocysteine and muscle strength decline: The Baltimore Longitudinal Study of Aging

(Vidoni ML, Pettee Gabriel K, Luo ST, Tanaka T, Simonsick EM, Day RS; Journal of Gerontology: Medical Sciences; 2017)

Relationship between Homocysteine and Muscle Strength Decline: The Baltimore Longitudinal Study of Aging

(Vidoni ML, Pettee Gabriel K, Luo ST, Simonsick EM, Day RS; Journal of Gerontology; 2017)

Prevalence and correlates of late initiation of smokeless tobacco in US firefighters

(Jitnarin N, Poston WSC, Haddock CK, Jahnke SA, Day RS, Severson HH; 2017)

Adenovirus 36 antibody detection: Improving the standard serum neutralization assay

(Chappell CL, Dickerson M, Day RS, Dubuisson O, Dhurandhar N; 2017)

Vitamin B12 and homocysteine associations with gait speed in older adults: The Baltimore Longitudinal Study of Aging

(Vidoni ML, Pettee Gabriel K, Luo ST, Simonsick EM, Day RS; 2017)

Recent News

Study shows where firefighters get calories, it’s not pretty

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Results from the first detailed evaluation of what firefighters across America eat and drink, the “Fuel 2 Fight” study, is an eye-opener.

UTSPH research: Obese US firefighters report receiving no weight advice from their health provider

Firefighter obesity a big problem

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CNN - July 18, 2014 - The need for firefighters to be fit seems obvious: A fire ax weighs around 20 pounds, and an oxygen tank can be up to 50. Throw in the big boots, jacket, unruly fire hoses and challenging emergencies, and you'd expect most firefighters to be in peak physical condition.

UTSPH awarded FEMA grant to explore novel obesity risk factor among firefighters

The study will examine the relationship of Ad-36 to obesity and cardiovascular disease (CVD) risk factors and will provide information to design health and wellness strategies specifically for firefighters, who are more likely to be overweight or obese than the general population.