Biostatistics Core

The Biostatistics Core supports the clinical research enterprise at Children’s Hospital Los Angeles (CHLA) by providing expert Biostatistics consultation services, educating faculty, fellows and staff, and collaborating on active research projects.

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Biostatistics Consultation Services

  • Study design and assistance in formulating research questions
  • Calculating sample size and power estimation
  • Performing statistical analysis
  • Manuscript preparation and publication

Fee Structure

  • Initial one hour consultation is always free
  • After the initial consultation, fees are charged at on hourly rate
  • Another option is to include budget line items for percent-effort of a Biostatistician

For Fellows: Fellows at Children’s Hospital Los Angeles receive 10 free hours of Biostatistical Consultation in support of their research projects. This is a per-fellow allocation, not a per-project allocation.

To request a free consultation, please complete this request form.

Core Leadership and Staff

Core Director: Ji Hoon Ryoo, PhD
Smith Research Tower 300B

Biostatistician: Colleen G. Azen, MS
Ms. Azen has an MS degree in Biometry from USC Department of Preventive Medicine and over 20 years experience in statistical consulting for biomedical research. She is a co-author on more than 70 publications and has been a study biostatistician for several NIH-funded multi-center studies.

Biostatistician: Choo Phei Wee, MS
Choo Phei received her Masters from Keck School of Medicine in Biostatistics from the Preventive Medicine Department at USC (2008). She has extensive experience in statistical analysis, data management and conducting analysis with national databases.

Partial support for the Biostatistics Core is provided by the Southern California Clinical and Translational Science Institute.

Saban Research Institute

Core Facilities

Research Highlights