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 on how it all began and in our interactive anniversary timeline.

Woman consulting with a KP Pharmacist

Calcium, Vitamin D Supplements May Help Prevent Weight Gain in Postmenopausal Women

Supplements may prevent weight gain in women Largest national study of its kind finds popular nutritional supplements have minimal, but statistically significant effects on weight change over seven years Oakland, CA, May 14, 2007 — Postmenopausal women who take calcium…

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Asian family at home with their child

Risk of Autism Rises With Age of Moms, Dads

Kaiser Permanente study of more than 132,000 children suggests link between chronic, life-long condition and advanced maternal and paternal age Oakland, CA, April 2, 2007 — Men and women who wait to have babies later in life may increase their…

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Two men playing tennis

Middle Age Brings Substantial Fitness Declines, Weight Gains

Middle Age and Fitness Levels Largest, long-term study of physical fitness change in U.S. investigates fitness trends in Caucasian and African American men and women Oakland, Calif., Feb. 28, 2007 – Physical fitness and activity levels decline substantially as we…

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Medical facility

Kaiser Permanente Unveils Groundbreaking Genetic Research Program

Researchers aim to reveal the genetic and environmental causes behind deadly and disabling diseases Oakland, Calif. (Feb. 14, 2007)—The Kaiser Permanente Northern California Division of Research is launching one of the largest research projects in the United States to examine…

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Tray of red capsule pills

Placing Limits on Medicare Prescription Drug Benefits May Lower Spending on Medications but May Also Raise Other Health Costs

Medicare + Choice Oakland, Calif. Wednesday, May 31, 2006 - In a study that looked at Medicare + Choice (a program that preceded Medicare Advantage and Part D coverage) researchers concluded that a cap on drug benefits for Medicare patients…

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Mother breastfeeding

Reassuring News for Parents of Jaundiced Newborns

Study shows infants with high bilirubin levels no more likely to suffer long-term developmental problems than other infants OAKLAND, Calif., May 3, 2006 -- Newborn babies who are diagnosed with and treated for jaundice are no more likely than other…

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group of people on bikes

New Long-term Study Adds to Evidence Linking Epstein-Barr Virus to Multiple Sclerosis

Epstein-Barr virus & multiple sclerosis Young adults with high levels of antibodies against the Epstein-Barr virus, the virus that most often causes mononucleosis, may be more likely to develop multiple sclerosis 15 to 20 years later, according to a study…

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Pharmacist and couple

Standard Dose of Popular Herbal Therapy No Better Than Placebo

Kaiser Permanente study shows Saw Palmetto not effective at relieving prostate problems  Oakland, Calif. February 8, 2006 - The herbal remedy saw palmetto is no more effective than a placebo at treating symptoms related to enlargement of the prostate gland,…

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Asian woman staring off into the distance

Low-fat Diets Alone Offer Slim Benefits for Women

WHI & Low-fat Diets Oakland, Calif. Tuesday, February 7, 2006 - Following a diet lower in total fat, without making any other lifestyle changes, did not significantly reduce the risk of breast cancer, heart disease and stroke, and did not…

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woman taking blood pressure

Losing Weight Could Prevent Deadly Kidney Disease

Kidney Disease Oakland, Calif. January 3, 2006 - If you are one of the millions of Americans who are vowing to lose weight in 2006 a new study by researchers at Kaiser Permanente could help offer you some extra incentive.…

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