Biographies

E-mail this page

(All fields required)

Recipient's email address

Please enter a valid email.

Your name

Please enter your name.

Your email address

Please enter a valid email.

Find another Doctor or Researcher

High Res

Patrick H. Ryan, PhD, MS

Assistant Professor, UC Department of Pediatrics

Assistant Professor, Department of Environmental Health

Phone: 513-803-4704

Email: patrick.ryan@cchmc.org

Show All

Specialties

Epidemiology; air pollution; exposure assessment

Biography

To date, Dr. Ryan has authored more than 30 publications and has presented his research at numerous national and international conferences. He has received research funding from the National Institute of Environmental Health Sciences, the U.S. Environmental Protection Agency, the U.S. Department of Housing and Urban Development, the Centers for Disease Control and Prevention, as well as industry and private foundations. Dr. Ryan has also been an invited speaker at numerous national conferences and universities, a guest lecturer for environmental epidemiology courses at the University of Cincinnati, and has advised masters and doctoral students in epidemiology, biostatistics, and industrial hygiene in the Department of Environmental Health at the University of Cincinnati. In 2006 Dr. Ryan received a STAR award from the American Academy of Allergy, Asthma, and Immunology and in 2010 he was selected as one of ten Science Communication Fellows by Environmental Health Sciences.

Dr. Ryan is the principal investigator of the Cincinnati Anti-Idling Campaign Study, an academic-community partnership to examine and reduce the impact of traffic-related air pollution at schools on children with asthma. He is also co-PI of a collaborative study to develop and field test, in a cohort of asthmatic children, a personal sensor to measure exposure to ultrafine particles. Dr. Ryan also serves as co-investigator of the Cincinnati Childhood Allergy and Air Pollution Study (CCAAPS), a longitudinal birth cohort study of the effects of diesel exhaust particles on the development of allergies and asthma. His research with the CCAAPS study includes the development of land-use regression models for air pollution exposure assessment and the association between air pollution and neurobehavioral development. Additional research includes studies of indoor pollutants and mold, environmental exposure to asbestos in Libby, MT, and the elemental composition of PM2.5.

Education and Training

PhD: Epidemiology, University of Cincinnati, Cincinnati, OH.

MS: Epidemiology, University of Cincinnati, OH.

Publications

Sebastian KJ, Ryan PH, Lockey JE, Bernstein DI, McKay RT, Hershey GKK, Villareal M, Biagini Myers JM, Levin L, Burkle J, Evans S, LeMasters GK. Unraveling the relationship between aeroallergen sensitization, gender, second hand smoke exposure and impaired lung function. Pediat Allergy and Immunol. In press.

Hochstetler HA, Yermakov M, Reponen T, Ryan PH, Grinshpun SA. Aerosol Particles Generated by Diesel-Powered School Buses at Urban Schools as a Source of Children’s Exposure. Atmospheric Environment. 2011;45:1444-1453.

Ryan PH, Dihle M, Griffin S, Taylor R, Hilbert T, Adjei S, Lockey JE. Radiographic Changes Associated with Exposure to Erionite in Road Gravel in North Dakota. J Occup Environ Med. 2011;53(8):893-899.

Sucharew H, Ryan PH, Bernstein D, Succop D, Khurana Hershey GK, Lockey J, Villareal M, Reponen T, Grinshpun S, LeMasters G. Exposure to Traffic Exhaust and Night Cough During Early Childhood: the CCAAPS Cohort. Pediatr Allergy Immunol. 2010;21(2 Pt 1):253-9.

Li C, Nguyen Q, Ryan PH, LeMasters GK, Spitz H, Lobaugh M, Glover S, Grinshpun SA. School bus pollution and changes in the air quality at schools: a case study. J Environ Monit. 2009;11:1037.

Ryan PH, Bernstein D, Reponen T, Levin L, Grinshpun S, Villareal M, Lockey J, Hershey GK, Burkle J, LeMasters GK. Exposure to traffic related-particles and endotoxin during infancy is associated with wheezing at age three. Am J Respir Criti Care. 2009;180:1068-1075

Appatova AS, Ryan PH, LeMasters GK, Grinshpun SA. Proximal Exposure of Public Schools and Students to Major Roadways: A Nationwide US Survey. Journal of Environmental Planning and Management. 2008; 51(5):631-646.

Ryan PH, LeMasters GK, Levin L, Burkle J, Biswas P, Hu S, Grinshpun S, Reponen T. A Land-Use Regression Model for Estimating Microenvironmental Diesel Exposure Given Multiple Addresses From Birth Through Childhood. Sci Total Environ. 2008;404:139-147.

Ryan PH, LeMasters GK, Biswas P, Levin L, Hu S, Lindsey M, Bernstein DI, Lockey J, Villareal M, Hershey GKK, Grinshpun SA. A comparison of proximity and land use regression traffic exposure models and wheezing in infants. Environ Health Perspect. 2007;115(2):278-284.

Ryan PH and LeMasters GK. A review of land-use regression models for characterizing intraurban air pollution exposure. Inhal Toxicol. 2007;19(Suppl 1):127-133.

Ryan PH, LeMasters G, Biagini J, Bernstein D, Grinshpun SA, Shukla R, Wilson K, Villareal M, Burkle J, Lockey J. Is it traffic type, volume, or distance? Wheezing in infants living near truck and bus traffic. J Allergy Clin Immunol. 2005;116:279-284.(Editor’s Choice article)

Grants

Impact of Traffic-Related Particles on Asthma for Students in an Urban School District. Principal Investigator. National Institute of Health (NIH) National Institute of Environmental Health Sciences (NIEHS). Oct 2009 – Sept 2012.

Analysis of Personal and Home Characteristics Associated with the Elemental Composition of PM2.5 in Indoor, Outdoor, and Personal Air in the RIOPA Study. Principal Investigator. Health Effects Institute (HEI). Aug 2010 – July 2012.

Field Validation of a Personal Sensor for Ultrafine PM in Asthmatic Children. Co-Principal Investigator. NIEHS. July 2011 – June 2013.

Diesel, Allergens, and Gene-Environment Interactions. Co-Investigator. NIEHS. July 2007 – June 2012.

The Libby Community Childhood Health Investigation and Exposure Follow-Up Study. Co-Investigator. Co-Investigator. NIEHS. October 2009 – Sept 2013.

Synergistic Effect of Home Exposure to Aeroallergens and Traffic-Related Air Pollution. Department of Housing and Urban Development (HUD). Co-Investigator. Apr 2011 – March 2013.