Epidemiology Consulting

Calc is a healthcare and public health consulting firm located in Connecticut, close to Yale University. Calc was founded by Dr. Yisong Geng. Dr. Geng got his MD degree from Shanghai Medical College of Fudan University and PhD in Health Services Research (with focus on health economics) from the University of Minnesota. He has more than 20 years experience working on projects funded by US federal government agencies (CDC, FDA, SAMHSA), universities, hospitals, and biomedical companies. All our work is done locally in USA. We never ship your data overseas.

Services

Publications

While works with private clients are kept confidential, most of our projects done for academic clients were published in peer-reviewed journals.

  1. Active shooters and gun-free zones: emotional versus legal motivations
  2. Evaluating Disparities in Pathways to Breast Reconstruction
  3. The Association Between Metabolic Derangement and Wound Complications in Elective Plastic Surgery
  4. Predicting Academic Performance during Plastic Surgery Residency: Can Step 2 Scores Reliably Replace Step 1?
  5. Efficacy of Prophylactic Post-Operative Antibiotics in Tissue Expander-Based Breast Reconstruction: A Propensity Score-Matched Analysis
  6. ASO Visual Abstract: Air or Saline? A Propensity Score-Matched Analysis on the Effect of Tissue Expander Fill on Complications in Immediate Breast Reconstruction
  7. Defining the Value of Breast Reconstruction Surgeons: Quantifying Clinical Encounter and Operative Volume at an Academic Center
  8. Health plan enrollment and mortality in the Medicare program
  9. Analysing user-reported data for enhancement of SmokefreeTXT: a national text message smoking cessation intervention
  10. Tracking Complications and Unplanned Healthcare Utilization in Aesthetic Surgery: An Analysis of 214,504 Patients Using the TOPS Database
  11. Mapping Patient Encounters in Breast Cancer Care: An Analysis of 8800 Clinical Encounters Among Patients Undergoing Mastectomy
  12. The Influence of Age on Complications after Correction of Congenital Breast Deformities: A National Analysis of the Pediatric and Adult NSQIP Datasets
  13. Air or Saline? A Propensity Score-Matched Analysis on the Effect of Tissue Expander Fill on Complications in Immediate Breast Reconstruction
  14. Defining Predictors of Future Academic Productivity in Plastic Surgery Residency
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