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.

Not all heart failure patients require hospitalization

Kaiser Permanente researchers have developed a risk stratification tool to guide hospital admissions from the emergency department for patients with acute heart failure.
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Study offers reassurance to pregnant patients using biologic medications for autoimmune disorders

A new study led by Kaiser Permanente researchers provides reassurance about vaccinating infants whose mothers took biologic medications for an autoimmune disorder during pregnancy.
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Cancer biopsy during colonoscopy doesn’t start new tumors

Kaiser Permanente clinical research finds patients who have a site biopsied after a suspected cancer is biopsied are not more likely to develop a second cancer.
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Low stroke risk in patients with very narrowed neck arteries causing no symptoms

Kaiser Permanente study suggests medical management alone may reduce stroke risk in patients with severe asymptomatic carotid stenosis.
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Lifestyle coaching helps Black adults control high blood pressure

A new Kaiser Permanente study found that a culturally tailored program could lead to long-term benefits in adults with hypertension.
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Many patients with blood clots can go home from ER

A decision support tool implemented in Kaiser Permanente Northern California emergency departments in 2016 has continued to help physicians safely discharge patients with an acute pulmonary embolism to their homes without harmful effects, a new study shows.
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Lower in-hospital mortality for vaccinated patients hospitalized with COVID-19

COVID-19 patients in Kaiser Permanente Northern California hospitals during the delta surge of 2021 were less likely to die in the hospital of COVID-19 if they were vaccinated, new research finds.
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New clues in early prediction of gestational diabetes

Kaiser Permanente researchers have identified several biological markers in the blood of pregnant people that are tied to an increased risk of developing gestational diabetes later in pregnancy.
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Pandemic stressors taking a toll on pregnant patients’ mental health

Pregnant patients surveyed by Kaiser Permanente researchers early in the COVID-19 pandemic reported more severe mental health symptoms when they were distressed about changes in prenatal care, childcare challenges, and food insecurity. A second study found disparities in how Black and Hispanic pregnant individuals experienced pandemic stressors compared with white patients.
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