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Stephen Sidney, MD, MPH

steve.sidney@kp.org

Sidney, Stephen

Stephen Sidney, MD, MPH, is the Director of Research Clinics and a senior research scientist with the Kaiser Permanente Northern California Division of Research. He earned a Bachelor of Arts in mathematics from Yale University, a medical degree from Stanford University, and a Master’s degree in Public Health from the University of California, Berkeley. Dr. Sidney’s research interests include cardiovascular epidemiology and surveillance; hypertension, physical activity and fitness; health outcomes associated with cannabis use; and air pollution and cerebrovascular disease.

In 1983, Dr. Sidney helped launch — and has had an ongoing leadership role in — the Coronary Artery Risk Development in Young Adults (CARDIA) study, a landmark NHLBI-funded study of the evolution of cardiovascular risk and of subclinical and clinical cardiovascular disease starting from young adulthood. For more than 3 decades, he has been the Principal Investigator of the KPNC Oakland Field Center. Dr. Sidney also has played significant volunteer roles in local public health efforts, including 6 years as the Chair of the Alameda County Public Health Commission in Northern California. He is a Fellow of the American Heart Association and is the Chief Scientific Advisor to the National Forum for Heart Disease and Stroke Prevention. Dr. Sidney has authored or co-authored approximately 500 peer-reviewed scientific publications while at the Division of Research, primarily in the area of cardiovascular epidemiology.

Current Positions

  • Research Scientist III, Division of Research, Kaiser Permanente Northern California
  • Director of Research Clinics, Division of Research, Kaiser Permanente Northern California

Section Affiliations

Primary Research Interests

  • Cardiovascular disease
  • Physical activity and fitness
  • Obesity
  • Acute coronary syndrome
  • Cerebrovascular disease

Publications

Cumulative exposure to cannabis and hippocampus MRI in middle age: results from the coronary artery risk development in young adults (CARDIA) study

Authors: Schilling B;Rana, Jamal S;Sidney, Stephen;Jakob J; et al.

Transl Psychiatry. 2026 May 19.

PubMed abstract

Alternative clinical trial designs to find a clinically important effect size of blood pressure-lowering on cognitive impairment and dementia

Authors: Levine DA;Sidney, Stephen;Burke JF; et al.

J Alzheimers Dis. 2026 Mar 30:13872877261430953.

PubMed abstract

Coronary Artery Calcium Progression and Cognitive Function in Midlife-The CARDIA Study (Coronary Artery Risk Development in Young Adults)

Authors: Teramoto M;Terry JG;Pletcher MJ;Marcus GM;Hoffmann TJ;Sidney S;Yaffe K

Circ Popul Health Outcomes. 2026 Feb 16:e012646.

PubMed abstract

Genome-wide meta-analyses reveal novel loci for verbal short-term memory and learning

Authors: Lahti, Jari; Starr, John M; Räikkönen, Katri; et al.

Mol Psychiatry. 2022 Nov;27(11):4419-4431. Epub 2022-08-16.

PubMed abstract

Physical activity trajectories, autonomic balance and cognitive function: The Coronary Artery Risk Development in Young Adults (CARDIA) study

Authors: Gafni, Tal; Gabriel, Kelley Pettee; Shuval, Kerem; Yaffe, Kristine; Sidney, Steve; Weinstein, Galit

Prev Med. 2022 Nov;164:107291. Epub 2022-10-07.

PubMed abstract

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