As a research center embedded within Kaiser Permanente’s large and dynamic health care system, our investigators have a unique opportunity to apply scientific expertise to real-world clinical problems, translate findings into practice, and share what we learn with the broader community.
Dr. David Cohen is an otolaryngologist and chief of the Department of Head and Neck Surgery at the Kaiser Permanente South Bay Medical Center. He is the area research chair for South Bay on the Southern California Permanente Medical Group’s Regional Research Committee. He is clinical assistant professor of Clinical Science at the Kaiser Permanente Bernard J. Tyson School of Medicine and a physician member of the American Academy of Otolaryngology/Head and Neck Surgery.
Dr. Cohen serves ...
Being active can lower your risk of getting seriously ill with COVID, regardless of your race or the chronic conditions you may have, according to research published last year in the American Journal of Preventive Medicine.
The Kaiser Permanente Southern California findings were important, impactful, and influential. As a result, the journal editors chose the research article, “Associations of Physical Inactivity and COVID-19 Outcomes Among Subgroups,” as the American Journal of Preventive Medicine 2023 Article of the Year.
New Kaiser Permanente research shows that the COVID-19 vaccine does not increase the risk of developing tinnitus, which is a ringing in the ears. “Early on in the COVID-19 pandemic, some people complained about hearing some sound after being vaccinated, but it wasn’t actually an external sound, it was tinnitus, which is the perception of ...
A new Kaiser Permanente study showed that fewer breast cancer survivors received recommended annual breast cancer imaging in the time after the COVID-19 pandemic period compared to before the pandemic. The study was published in JAMA Oncology in July 2025. Little has been known previously about the impact of the COVID-19 pandemic on post-treatment surveillance ...
A diagnosis of Type 2 diabetes typically means a future of blood sugar monitoring and glucose-lowering medications. But interest is growing in identifying which people with diabetes might be able to stop taking their medications and control their disease with diet and exercise alone. A new Kaiser Permanente study, published in Diabetes Care, sheds light ...
Kaiser Permanente research found that breast cancer survivors have a higher risk of developing other cancers if they have other preexisting health conditions, such as high blood pressure and diabetes. “Preexisting health conditions are common in people diagnosed with cancer and what we’ve learned with this study is that comorbidities — experiencing multiple illnesses or ...
Maheen Humayun, PhD, MPH, is an infectious disease epidemiologist and postdoctoral research fellow in the Department of Research & Evaluation. Prior to joining Kaiser Permanente, Dr. Humayun worked as an HIV Cluster Detection and Response Fellow at the Centers for Disease Control and Prevention. In that role, she analyzed national HIV surveillance data to detect rapid ...
The latest IMPACT newsletter, which focuses on research from Kaiser Permanente Southern California, is now available! It features stories on improving MS treatment and how to reduce risks for breast cancer survivors and young cancer survivors. We also have a Q&A with Dr. Taynara Formagini (pictured), a first-generation college student who discovered that by conducting research she could combine her passion for helping underserved communities with the rigor of science.
Investigators with the Division of Biostatistics Research collaborate closely with scientists from the department’s other scientific divisions, as well as physician researchers at medical centers across Kaiser Permanente Southern California. They provide expertise and guidance on study design, power and sample size calculations, data management, data analysis and interpretation, and statistical methodology.
Investigators from the division have expertise in study design and data analysis for observational studies and clinical trials to address study questions. Their expertise spans standard and modern methods that deal with complex and big data for population and causal inferences as well as disease prediction.
Each division has at least one dedicated collaborative biostatistician research scientist assigned to provide statistical guidance on its research studies. In addition, one of the collaborative biostatistician researcher scientists leads the Regional Research Statistical Support team, which supports medical center-based researchers.