Population health is more than the health of a population—it is a systems framework for studying and improving the health of populations through collective action and learning.

Data science is the art and science of transforming data into actionable knowledge. 

San Francisco, California

Medical Epidemiology

medepi.com

Population health

Population health is more than the health of a population—it is a systems framework for studying and improving the health of populations through collective action and learning. By systems I mean socioecological complex adaptive systems.

Data science

Data science is the art and science of transforming data into actionable knowledge. Knowledge integration is the management, synthesis, and translation of knowledge into decision support systems to improve policy, practice, and—ultimately—population health.

Tomás J Aragón, MD, DrPH

I am the Health Officer of the City & County of San Francisco, Director of the Population Health Division at the Department of Public Health, and adjunct faculty at the UC Berkeley School of Public Health. Learn more:

[About me] | [Book projects] | [Curriculum vitae]

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Tomás J Aragón

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After a few years of blogging on medepi.com (medepi.wordpress.com), I am moving to http://phdatascience.com (phdatascience.blogspot.com). I hope you visit the new site and sign up for notifications. I am moving because, unfortunately, wordpress.com sucks. WordPress.com does not render pages correctly on multiple systems, especially Linux browsers. In the beginning it worked great, but over the past… Read More

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UPDATED document here (PDF) Background The mission of the San Francisco Department of Public Health (SFDPH) is “to protect and promote the health of all San Franciscans.” SFDPH consists of two divisions: San Francisco Health Network (SFHN) (clinical services) Population Health Division (PHD) (core public health services) To leverage the resources of both divisions, as part of… Read More

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Reflections from a local health official I was honored to be invited to speak at the Stanford Center for Population Health Sciences Annual Colloquium on October 26, 2015. They have an exciting new transdisciplinary program to improve the health of populations. I covered three related areas: population health data science, complex adaptive systems, and health equity.… Read More

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Population health is more than the health of a population—it is a systems framework for studying and improving the distribution and determinants of health and quality of life states through collective action and learning. Data science is the art and science of transforming data into actionable knowledge. Knowledge integration is the management, synthesis, and translation… Read More

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What are the competencies of effective public health leaders? I have had the opportunity to participate in several health leadership fellowships (UCSF/California HealthCare Foundation, NACCHO, and Kresge Foundation). All of them have been great! I have learned a tremendous amount. Leadership training curricula start by identifying desired competencies (knowledge, skills, and abilities) for the participants.… Read More

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What is trust? In a previous blog I reviewed trust from the excellent book “The Speed of Trust” by Stephen MR Covey. I believe trust is central to healthy relationships and achieving our collective goals. My own understanding of how to build and restore trust continues to evolve. First, I start with a definition. Trust is… Read More

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