In 2022, DOR celebrates 60 years of innovative health research.

The Kaiser Permanente Division of Research conducts, publishes, and disseminates epidemiologic and health services research to improve the health and medical care of Kaiser Permanente members and society at large. We seek to understand the determinants of illness and well-being and to improve the quality and cost-effectiveness of health care. DOR’s 600-plus staff is currently working on more than 580 epidemiological and health services research projects. Read our story or watch our video of how it all began and learn even more from our interactive anniversary timeline.

Male doctor and male patient

Obesity in Middle Age Increase Risk of Dementia Later in Life

Obesity and Dementia OAKLAND, Calif., April 27, 2005 – Obesity has long been known to increase the risk of a number of diseases, including diabetes, stroke, insulin resistance and hypertension. This same obesity in mid life may also have damaging…

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Doctor on laptop

Kaiser Permanente Research: Study of Early Stage Breast Cancer Patients Identifies Women at Low Risk of Breast Cancer Mortality

21-gene test predicts mortality risk in epidemiological study. SAN ANTONIO – December 9, 2004, Kaiser Permanente researchers are presenting results of a large epidemiologic study of a unique breast cancer test at the 27th Annual San Antonio Breast Cancer Symposium.…

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Mature woman smiling

Kaiser Permanente Researchers Will Evaluate Whether Lifestyle Changes Improve Prognosis for Women With Breast Cancer

Breast Cancer OAKLAND, Calif., November 8, 2004 Researchers at Kaiser Permanente have received a $10 million grant to study whether lifestyle factors such as diet, exercise and use of complementary and alternative medicine (CAM) impact recurrence and survival rates for…

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Study Examines Relationship Between Breast Density and Second Breast Cancers for Women with Ductal Carcinoma In Situ

Breast Density and DCIS Oakland, Calif., October 5, 2004--Having highly dense breasts may be associated with an increased risk of a second breast cancer among women who have had a ductal carcinoma in situ (DCIS), according to a study in…

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Mature male reading a book

Even Mild Kidney Disease Increases Risk of Heart Attack or Death

Oakland, CA—Chronic kidney disease—even asymptomatic forms of the disease—increases a person’s risk of heart disease, stroke, or death, according to researchers with Kaiser Permanente’s Division of Research in a paper published in the September 23, 2004 issue of the New…

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pregnant woamn

Study Shows Role of Genetic Makeup Between Parents in Preterm Delivery

Transmission of Parentally Shared Human Leukocyte Antigen Gene Increases Risk of Early Births Oakland, Calif., August 31, 2004--The transmission of Human Leukocyte Antigen (HLA) genes may play a significant role in the risk of preterm delivery, according to a study…

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Physician with patient

Can Mammograms Help Predict Cardiovascular Disease?

Mammograms, New Findings are Promising OAKLAND, Calif., May 25, 2004 -- The presence of breast vascular calcifications found through common mammograms is associated with an increased risk of cardiovascular diseases in women, according to an article in the May Journal…

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group of people

Gestational Diabetes Increases 35% in 10 Years

GDM - Gestational Diabetes Mellitus Kaiser Permanente Research shows risky condition becoming more prevalent in younger pregnant women. Oakland, CA—Kaiser Permanente researchers studying 267,000 women of various ethnic groups have found that the incidence of gestational diabetes mellitus (GDM) increased…

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Woman getting ready to jog

Fitness Now May Keep You Healthy Later

Study included 1,000 Kaiser members from Oakland, followed subjects over 15 years Wednesday, December 17, 2003 - People who failed a treadmill fitness test in their 20s had twice the risk of developing high blood pressure, diabetes and other cardiovascular…

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Doctors researching in lab

Link Between Cannabis and Death Still Not Established

Cannabis and Death Although the use of cannabis is not harmless, its link with death is still not established, argues senior researcher, Dr. Steve Sidney, Kaiser Permanente, Northern California, Division of Research in this week's BMJ. (9.19.03) Two large studies…

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