A photo of Nicholas Ollberding.

Nicholas J. Ollberding, PhD

  • Associate Professor, UC Department of Pediatrics
  • UC Department of Rehabilitation, Exercise, and Nutrition Sciences



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.


Clinical outcomes of children with rheumatic heart disease. Zimmerman, M; Kitooleko, S; Okello, E; Ollberding, N; Sinha, P; Mwambu, T; Sable, C; Beaton, A; Longenecker, C; Lwabi, P. Heart. 2022; 108:633-638.

Modelling study of the ability to diagnose acute rheumatic fever at different levels of the Ugandan healthcare system. Ndagire, E; Ollberding, N; Sarnacki, R; Meghna, M; Pulle, J; Atala, J; Agaba, C; Kansiime, R; Bowen, A; Longenecker, CT; et al. BMJ Open. 2022; 12.

Decreased Global Myocardial Work Efficiency Correlates with Coronary Vasculopathy in Pediatric Heart Transplant Patients. Pradhan, S; Mullikin, A; Zang, H; Ollberding, NJ; Stark, S; Hill, GD; Chin, C; Tretter, JT. Pediatric Cardiology. 2022; 43:515-524.

Socioeconomic Impact on Outcomes During the First Year of Life of Patients with Single Ventricle Heart Disease: An Analysis of the National Pediatric Cardiology Quality Improvement Collaborative Registry. de Loizaga, SR; Schneider, K; Beck, AF; Zang, H; Ollberding, N; Tweddell, JS; Anderson, JB. Pediatric Cardiology. 2022; 43:605-615.

SUPRANORMAL CARDIAC INDEX DEVELOPS IN PEDIATRIC PULMONARY HYPERTENSION PATIENTS TREATED WITH PARENTERAL PROSTANOID THERAPY. Miles, K; Critser, P; Ollberding, N; Gao, Z; Cash, M; Oneil, M; Magness, SM; Hirsch, R. Journal of the American College of Cardiology. 2022; 79.

Altered erythropoiesis in newborns with congenital heart disease. Tseng, SY; Gao, Z; Kalfa, TA; Ollberding, NJ; Tabbah, S; Keller, R; Cnota, JF. Pediatric Research. 2022; 91:606-611.

A unique gut microbiota signature in pulmonary arterial hypertension: A pilot study. Jose, A; Apewokin, S; Hussein, WE; Ollberding, NJ; Elwing, JM; Haslam, DB. Pulmonary Circulation. 2022; 12.

Abstract 11838: Isosorbide Dinitrate Effect May Improve Exercise Tolerance, Venous Pressure and Liver Stiffness in Patients With Fontan Circulation (The NEET Clinical Trial). Bigelow, AM; Riggs, KW; Morales, DL; Lubert, AM; Heydarian, HC; Dillman, JR; Trout, AT; Opotowsky, AR; Cooper, DS; Wang, YL; et al. Circulation. 2021; 144:a11838-a11838.

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; 27:1707-1718.

Outcomes of Implantable Loop Monitoring in Patients <21 years="" of="">. Czosek, RJ; Zang, H; Baskar, S; Anderson, JB; Knilans, TK; Ollberding, NJ; Spar, DS. American Journal of Cardiology. 2021; 158:53-58.