A photo of Nicholas Ollberding.

Associate Professor, UC Department of PediatricsUC Department of Rehabilitation, Exercise, and Nutrition Sciences


Biography & Affiliation


Nicholas Ollberding is an epidemiologist with applied research interests into the role of diet in the etiology and progression of chronic disease and the impact of the developing infant intestinal microbiome on growth and early development. Areas of methodical research interest include the application and development of analytical methods for microbial metagenomic next-generation sequence data, dietary assessment and analysis methodology, predictive modeling, and casual inference. He also collaborates broadly as a quantitative methodologist in the area of health sciences research and leads the Biostatistics Core of the Heart Institute Research Core and the Microbial Metagenomics Analysis Center at Cincinnati Children’s Hospital Medical Center.

Research Interests

Nutritional epidemiology; microbial metagenomics; quantitative methods; dietary assessment and analysis methodology

Academic Affiliation

Associate Professor, UC Department of PediatricsUC Department of Rehabilitation, Exercise, and Nutrition Sciences

Research Divisions

Biostatistics and Epidemiology


PhD: Columbia University, New York, 2009.

MPhil: Columbia University, New York, 2009.

MS: University of Cincinnati, Cincinnati, OH, 2008.

BS: Miami University, Oxford, OH, 2004.


Exposure to traffic-related air pollution and bacterial diversity in the lower respiratory tract of children. Niemeier-Walsh, C; Ryan, PH; Meller, J; Ollberding, NJ; Adhikari, A; Reponen, T. PLoS ONE. 2021; 16.

Giving "prescriptions " for paediatric weight management follow-up in primary care. Kharofa, RY; Khalsa, AS; Zeller, MH; Modi, AC; Ollberding, NJ; Copeland, KA. Clinical obesity. 2021; 11.

Left Atrial Strain in the Repaired Tetralogy of Fallot Population: Comparisons to Biventricular Function, Native T1 Values, Exercise Parameters and Healthy Controls. Ta, HT; Truong, VT; Alsaied, T; Critser, PJ; Germann, J; Ollberding, NJ; Khoury, PR; Powell, AW; Lang, S; Mazur, W; et al. Pediatric Cardiology. 2021; 42:1102-1110.

Factors Associated With Residential Relocation and Effects on Early Childhood Development in a Low-Income Home Visitation Population. Parsons, AA; Ollberding, NJ; Copeland, KA; Phelan, KJ. Journal of Primary Prevention. 2021; 42:125-141.

The mycobiomes and bacteriomes of sputum, saliva, and home dust. Niemeier-Walsh, C; Ryan, PH; Meller, J; Ollberding, NJ; Adhikari, A; Indugula, R; Reponen, T. Indoor Air. 2021; 31:357-368.

Altered erythropoiesis in newborns with congenital heart disease. Tseng, SY; Gao, Z; Kalfa, TA; Ollberding, NJ; Tabbah, S; Keller, R; Cnota, JF. Pediatric Research. 2021.

Progressive QRS Duration and Ventricular Dysfunction in Pediatric Patients with Chronic Ventricular Pacing. Czosek, RJ; Gao, Z; Anderson, JB; Knilans, TK; Ollberding, NJ; Spar, DS. Pediatric Cardiology. 2021; 42:451-459.

A novel method of donor‒recipient size matching in pediatric heart transplantation: A total cardiac volume‒predictive model. Szugye, NA; Zafar, F; Ollberding, NJ; Villa, C; Lorts, A; Taylor, MD; Morales, DL S; Moore, RA. Journal of Heart Transplantation. 2021; 40:158-165.

Outcomes of Pediatric Patients With Defibrillators Following Initial Presentation With Sudden Cardiac Arrest. Robinson, JA; Lapage, MJ; Atallah, J; Webster, G; Miyake, CY; Ratnasamy, C; Ollberding, NJ; Mohan, S; Von Bergen, NH; Johnsrude, CL; et al. Circulation: Arrhythmia and Electrophysiology. 2021; 14.

Association of Baseline Luminal Narrowing With Ileal Microbial Shifts and Gene Expression Programs and Subsequent Transmural Healing in Pediatric Crohn Disease. Ta, AD; Ollberding, NJ; Karns, R; Haberman, Y; Alazraki, AL; Hercules, D; Baldassano, R; Markowitz, J; Heyman, MB; Kim, S; et al. Inflammatory Bowel Diseases. 2021.