Report summary

University of Pittsburgh Department of Biostatistics in 2015-2026 reads as a 52-PI network with 109 internal PI collaborations. The dominant subject mix is Medicine as the leading field (29% of slots across 26 PIs; 26 labels), Molecular Biology as the leading subfield (9% of slots across 11 PIs; 11 labels), and Statistical Methods and Inference as the leading topic (5% of slots across 7 PIs; 7 labels). That is promising: collaboration is not just one large hairball, and the leading breakdown groups cover 25 PIs across distinct clusters. The leading PI names are Nancy W. Glynn (47.1 weighted works; Physical Activity and Health, Balance, Gait, and Falls Prevention). The most visible ties are Seth M. Weinberg and Mary L. Marazita (86 shared works, weight 21.6). The leading breakdown groups are group 1 with 10 PIs, 10 internal connections, weight 31.6, around Statistics and Probability, Cardiology and Cardiovascular Medicine, Hematology, led by Bruce L. Jacobs, Maria M. Brooks, Chung‐Chou H. Chang; group 2 with 9 PIs, 9 internal connections, weight 28.3, around Cognitive Neuroscience, Surgery, Statistics and Probability, led by John M. Jakicic, Meredith L. Wallace, Dana Tudorascu.