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Rania Mekary, M.Sc., Ph.D.
Assistant Professor of Social and Administrative Sciences

School of Pharmacy


Pharmaceutical Economics and Policy (PhD)
Pharmaceutical Economics and Policy (MS)

Research Associate, Harvard University: Nutrition, colorectal cancer, and type 2 diabetes Epidemiology
Post-Doctoral Fellowship, Harvard University: Physical Activity and obesity Epidemiology
PhD, Louisiana State University: Nutrition (Human Ecology), Epidemiology (minor)
MSc, Louisiana State University: Applied Statistics, Exercise Physiology (minor)
MSc, American University of Beirut: Nutrition and Dietetics
BSc, American University of Beirut: Food Technology and Nutrition

Areas of Teaching
Research methods
Scientific writing

Scholarly Interests
Dr. Mekary’s research interests can be summarized in conducting epidemiological research in diet, nutrition, eating patterns, & physical activity and their relation to weight change and chronic disease outcomes such as obesity, type 2 diabetes and colorectal cancer; analyzing large-scale complex epidemiological data set using statistical expertise (survival analysis among others).

Dr. Mekary’s specialties include the following: Statistical analysis; statistical consulting; performing meta-analysis using Stata and CMA; manuscript writing; grant writing; nutrition counseling for weight loss and other diet-related chronic diseases; teaching nutrition, research methods, statistics, epidemiology, and nutrition epidemiology; fitness teaching; and excellent communication skills.

Mekary RA, Ding EL. " Analysis of television viewing and physical activity using time substitution models." Archives of Internal Medicine. 2010 Jul 12;170(13):1173-4; author reply 1174.

Ding EL, Mekary RA. “Isotemporal substitution analysis of TV watching and physical activity,” MS ID#: CIRCULATIONAHA/2010/950030. Circulation 2010 Sep 28;122(13):e472; author reply e473.

Mekary RA, Willett WC, Hu FB. "Letter to the editor: Reply to G Livesey." Am J Clin Nutr. 2012.

Mekary RA, Giovannucci, E.. "Letter to the editor: Letter to the editor Belief beyond the evidence: using the proposed effect of breakfast on obesity to show 2 practices that distort scientific evidence” Am J Clin Nutr. Jan 2104.

Published Manuscripts
Rania A. Mekary, Anders Grøntved, Leandro Pereira De Moura, Jean-Pierre Despres, Morteza Asgarzadeh, Walter C. Willett, Eric B. Rimm, Edward Giovannucci, Frank B. Hu. “Weight training, aerobic activities, and waist circumference change in men.” Obesity, 2014

Helene Dumas, Carol Nash, Jane Obrien, Rania A. Mekary. “Unplanned readmissions to acute care from a pediatric post-acute care hospital: Incidence, clinical reasons and predictive factors". Hospital Pediatrics, 2015 March

Anders Grøntved, An Pan, Rania A. Mekary, JoAnn E. Manson, Frank B. Hu. “Resistance exercise, lower intensity muscular conditioning exercise and risk of type 2 diabetes: a prospective study in US Women.” PLOS Medicine, 2014 Jan

Rania A. Mekary, Edward Giovannucci, Leah Cahill, Walter Willett, Frank B. Hu. “Eating patterns and type 2 diabetes risk in older women: breakfast consumption and eating frequency.” Am J Clin Nutr. 2013 Aug

Rania A. Mekary, Michel Lucas, An Pan, Walter C Willett, Frank B. Hu, Eric L. Ding “Isotemporal substitution model for physical activities, TV watching, and depression risk” Am J Epidemiol 2013 Aug 1

Leah E Cahill, Stephanie E Chiuve, Rania A Mekary, Majken K Jensen, Alan J Flint, Frank B Hu, and Eric B Rimm. “A Prospective Study of Morning and Late Night Eating and Incident Coronary Heart Disease in a Cohort of Male U.S. Health Professionals.” Circulation 2013 Jul 23;

Margaret A. Gates, Rania A. Mekary, Gretchen R. Chiu, Eric L. Ding, Gary A. Wittert, Andre B. Araujo. “Sex steroid hormone levels and body composition in men.” J Clin Endocrinol Metab. 2013 Jun.

Rania A. Mekary, Edward Giovannucci, Walter Willett, Rob Van Dam, Frank B. Hu. “Eating patterns and type 2 diabetes risk in men: Breakfast omission, eating frequency, and snacking.” Am J Clin Nutr. 2012 Mar 28. PMID: 22456660

Rania A. Mekary, Frank B. Hu, Walter Willett, Stephanie Chiuve, Kana Wu, Charles Fuchs, Teresa T. Fung, Edward Giovannucci. “The joint association of eating frequency and diet quality with colorectal cancer risk in the Health Professionals Follow-up Study.” Am J Epidemiol. 2012 Mar 2. PMID: 22387430

Rania A. Mekary, Eric Rimm, Edward Giovannucci, Meir Stampfer, Walter Willett, David S. Ludwig, Frank B Hu. “Joint association of glycemic load and alcohol intake with type 2 diabetes incidence in women.” Am J Clin Nutr. 2011 Dec; 94(6):1525-32. PMID: 22049168

Michel Lucas, Rania A. Mekary, Ichiro Kawachi, Karestan Koenen, Fariba Mirzaei, Eilis O’reilly, An Pan, Walter C Willett, Alberto Ascherio. “Physical activity and TV watching relationship with clinical depression risk among older women: A 10-year prospective follow-up study”. Am J Epidemiol. 2011 Oct 7. PMID: 21984659

Rania Mekary*, Anne Lusk*, Diane Feskanich, Walter Willett. “Bicycling, walking, and weight gain in pre-menopausal women”. *Equal contribution. Archives of Internal Medicine. 2010 Jun 28; PMCID: 298739.

Rania A. Mekary, Kana Wu, Edward Giovannucci, Laura Sampson, Charles Fuchs, Donna Spiegelman, Walter C. Willett, and Stephanie A Smith-Warner. “Total Antioxidant Capacity (TAC) intake and colorectal cancer risk in the Health Professionals Follow-up Study” Cancer Causes and Control. 2010 Apr 14. [Epub ahead of print]. PMID: 20390446; NIHMSID: 300827

Alomari, M, Mekary R.A., Welsch, M.A. “Rapid vascular modifications to localized rhythmic handgrip training and detraining.” Eur J Appl Physiol. 2010 Mar 12. NIHMSID: 301090

Rania A. Mekary, Walter C. Willett, Frank B. Hu, Eric L. Ding. “Isotemporal substitution paradigm for physical activity epidemiology: effects of activity substitution in weight loss maintenance”. Am J Epidemiol. Jul 7 2009. PMCID: 2733862

Mekary, R.A, Feskanich, D., Malspeis, S. Hu, FB. Willett, WC, and Field, AE. “Physical activity patterns and prevention of weight gain in premenopausal women.” Int J Obes (Lond). Jun 23 2009. PMCID: 2746452

Mekary, R.A, Feskanich, D., Hu, FB. ,Willett, WC, and Field, AE. “Physical activity in relation to long-term maintenance after intentional weight loss in premenopausal women” Obesity (Silver Spring). Jun 4 2009. PubMed # 19498346; PMCID: 2798010

Bawadi, HA, Al-Shwaiyat NM, Tayyem, RT, Mekary, RA, and Tuuri, G. “Developing a food exchange list for Middle Eastern appetizers and desserts commonly consumed in Jordan”. Nutrition and Dietetics, Feb 19, 2009, 66 (20-26). NIHMSID: 301087

Published Abstracts
Rania A. Mekary, Walter C. Willett, Frank B. Hu, Eric L. Ding. Effects of isotemporal substitution paradigm of different physical activities on longitudinal waist circumference change in women. (March 2010, American Heart Association)

Rania A. Mekary1,2, Stephen Lindsey3, Pamela Riddle2, James Geaghan2, Maren Hegsted1. Human Ecology1, Experimental Statistics2 , Louisiana State University, Baton Rouge, LA, 70803, Ochsner Clinic3, Baton Rouge, LA, 70809. “Osteoporosis and osteopenia treatment: A retrospective case-referent study of post-menopausal women”. FASEB Journal 2005.

Mekary, R.A., Lindsey, S., Lindberg, J., Hugh-Jones, M., Hegsted, M., “Survey of Baton Rouge/New Orleans physicians who treat osteoporosis,” FASEB Journal 17:A296. 2003

McCutcheon, K.L., Francis, A.R., Martin, R.J., Keenan, M.J., O’Neil, C.O., Gillespie, M.S., Mekary, R.A., Hegsted, M., “Ad libitum vs. meal feeding rats in obesity research,” FASEB Journal 17:A746. 2003.

Hegsted, M., Francis, A.R., McCutcheon, K.L., Keenan, M.J., O’Neil, C.E., Gillespie, M.S., Mekary, R.A., Martin, R.J., “Amylose resistant starch (RS) decreases body fat in rats,” FASEB Journal 17:A335. 2003.

O’Neil, C.E., Hegsted, M., Mekary, R.A., Mihalache, G., Keenan, M.J., Elks, C., Daigle, K., Duhe, S., Melton, S.A., “Running and Swimming improve bone mineral density in ovariectomized retired breeder rats,” FASEB Journal 16:A624. 2002.