Alex Dahlen
Alex Dahlen
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Clinical Associate Professor of Biostatistics
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Professional overview
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Alex Dahlen, PhD joins GPH as Director of the new Collaborative Statistical Core in the Department of Biostatistics. The goal of the Core is to collaborate widely throughout the School, to bring robust statistical methods and thoughtful study design to public health research, and to train the next generation of data scientists and statisticians in team science and applied statistics. Dr. Dahlen has nearly 10 years of experience working in collaborative statistics, across a variety of settings in and out of academia.
In his previous role as senior statistician in the Quantitative Sciences Unit of the Department of Medicine at Stanford University, Dr. Dahlen collaborated with physicians and clinical researchers on all aspects of research, including acting as lead statistician on grant applications and statistical author on numerous published manuscripts. He devotes a large portion of his time to mentoring junior scientists: providing hands-on coding lessons; overseeing analysis; offering study design and methodology tutorials; and lecturing about healthy research practices. Dr. Dahlen received his PhD in the physics of bubbles from Princeton University in 2011.
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Education
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BA, Theoretical and Mathematical Physics, Harvard University, Cambridge, MAPhD, Theoretical and Mathematical Physics, Princeton University, Princeton, NJ
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Honors and awards
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Pathology Health Equity Research Award at Stanford University (2023)
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Publications
Publications
Association between obesity and length of COVID-19 hospitalization: unexpected insights from the american heart association national COVID-19 registry
Collins, W. J., Chang, A. Y., Weng, Y., Dahlen, A., O’Brien, C. G., Hom, J., Ahuja, N., Rodriguez, F., & Rohatgi, N. (n.d.).Publication year
2022Journal title
Journal of Obesity & Metabolic SyndromeVolume
31Issue
3Page(s)
277Design of a population-based longitudinal cohort study of SARS-CoV-2 incidence and prevalence among adults in the San Francisco Bay Area
AbstractLindan, C. P., Desai, M., Boothroyd, D., Judson, T., Bollyky, J., Sample, H., Weng, Y., Cheng, Y., Dahlen, A., Hedlin, H., Grumbach, K., Henne, J., Garcia, S., Gonzales, R., Craik, C. S., Rutherford, G., & Maldonado, Y. (n.d.).Publication year
2022Journal title
Annals of epidemiologyVolume
67Page(s)
81-100AbstractWe describe the design of a longitudinal cohort study to determine SARS-CoV-2 incidence and prevalence among a population-based sample of adults living in six San Francisco Bay Area counties.Gastrointestinal symptoms and fecal shedding of SARS-CoV-2 RNA suggest prolonged gastrointestinal infection
AbstractNatarajan, A., Zlitni, S., Brooks, E. F., Vance, S. E., Dahlen, A., Hedlin, H., Park, R. M., Han, A., Schmidtke, D. T., Verma, R., Jacobson, K. B., Parsonnet, J., Bonilla, H. F., Singh, U., Pinsky, B. A., Andrews, J. R., Jagannathan, P., & Bhatt, A. S. (n.d.).Publication year
2022Journal title
Med (New York, N.Y.)Volume
3Issue
6Page(s)
371-387.e9AbstractCOVID-19 manifests with respiratory, systemic, and gastrointestinal (GI) symptoms. SARS-CoV-2 RNA is detected in respiratory and fecal samples, and recent reports demonstrate viral replication in both the lung and intestinal tissue.2, 3, 4 Although much is known about early fecal RNA shedding, little is known about long-term shedding, especially in those with mild COVID-19. Furthermore, most reports of fecal RNA shedding do not correlate these findings with GI symptoms..Healthcare utilization in children across the care continuum during the COVID-19 pandemic
Schroeder, A. R., Dahlen, A., Purington, N., Alvarez, F., Brooks, R., Destino, L., Madduri, G., Wang, M., & Coon, E. R. (n.d.).Publication year
2022Journal title
PloS oneVolume
17Issue
10Page(s)
e0276461Medical Student Documentation Practices and Perspectives Following the 2018 CMS Billing Guidelines
Farber, O. N., Dahlen, A., & Kumar, A. D. (n.d.).Publication year
2022Journal title
Academic MedicineVolume
97Issue
9Page(s)
1256Primary Care Diagnosis and Treatment of Attention-Deficit/Hyperactivity Disorder in School-Age Children: Trends and Disparities During the COVID-19 Pandemic
Bannett, Y., Dahlen, A., Huffman, L. C., & Feldman, H. M. (n.d.).Publication year
2022Journal title
Journal of Developmental & Behavioral PediatricsVolume
43Issue
7Page(s)
386--392Compactifying de Sitter space naturally selects a small cosmological constant
Brown, A. R., Dahlen, A., & Masoumi, A. (n.d.).Publication year
2014Journal title
Physical Review DVolume
90Issue
12Page(s)
124048Flux compactifications grow lumps
Dahlen, A., & Zukowski, C. (n.d.).Publication year
2014Journal title
Physical Review DVolume
90Issue
12Page(s)
125013Flux compactifications on (S 2) N
Brown, A. R., Dahlen, A., & Masoumi, A. (n.d.).Publication year
2014Journal title
Physical Review DVolume
90Issue
4Page(s)
045016Spectrum and stability of compactifications on product manifolds
Brown, A. R., & Dahlen, A. (n.d.).Publication year
2014Journal title
Physical Review DVolume
90Issue
4Page(s)
044047Bubble baryogenesis
Cheung, C., Dahlen, A., & Elor, G. (n.d.).Publication year
2012Journal title
Journal of High Energy PhysicsVolume
2012Issue
9Page(s)
1--31On “nothing” as an infinitely negatively curved spacetime
Brown, A. R., & Dahlen, A. (n.d.).Publication year
2012Journal title
Physical Review DVolume
85Issue
10Page(s)
104026Bubbles of Nothing and the Fastest Decay in the Landscape
Brown, A. R., & Dahlen, A. (n.d.).Publication year
2011Journal title
Physical Review DVolume
84Issue
4Page(s)
043518Case of the disappearing instanton
Brown, A. R., & Dahlen, A. (n.d.).Publication year
2011Journal title
Physical Review DVolume
84Issue
10Page(s)
105004Giant leaps and minimal branes in multidimensional flux landscapes
Brown, A. R., & Dahlen, A. (n.d.).Publication year
2011Journal title
Physical Review DVolume
84Issue
2Page(s)
023513Linear and Nonlinear Rogue Wave Statistics in the Presence of Random Currents
Kaplan, L., Ying, L., Dahlen, A., Heller, E., & Zhuang, Z. (n.d.).Publication year
2011Populating the whole landscape
Brown, A. R., & Dahlen, A. (n.d.).Publication year
2011Journal title
Physical review lettersVolume
107Issue
17Page(s)
171301Vacuum Decay in a Flux Landscape
Dahlen, A., & Dahlen, A. (n.d.).Publication year
2011Odds of observing the multiverse
Dahlen, A., & Dahlen, A. (n.d.).Publication year
2010Journal title
Physical Review DVolume
81Issue
6Page(s)
063501Small steps and giant leaps in the landscape
Brown, A. R., & Dahlen, A. (n.d.).Publication year
2010Journal title
Physical Review DVolume
82Issue
8Page(s)
083519Characterization of transition edge sensors for the Millimeter Bolometer Array Camera on the Atacama Cosmology Telescope
Zhao, Y., Allen, C., Amiri, M., Appel, J. W., Battistelli, E. S., Burger, B., Chervenak, J. A., Dahlen, A. J., Denny, S., Devlin, M. J., others, ., & Dahlen, A. (n.d.).Publication year
2008Volume
7020Page(s)
228--238Instrument design and characterization of the millimeter Bolometer Array Camera on the Atacama Cosmology Telescope
Swetz, D. S., Ade, P. A., Allen, C., Amiri, M., Appel, J. W., Battistelli, E. S., Burger, B., Chervenak, J. A., Dahlen, A. J., Das, S., others, ., & Dahlen, A. (n.d.).Publication year
2008Volume
7020Page(s)
84--95Refraction of a Gaussian seaway
Heller, E. J., Kaplan, L., Dahlen, A., & Dahlen, A. (n.d.).Publication year
2008Journal title
Journal of Geophysical Research: OceansVolume
113Issue
C9Systems and control software for the Atacama Cosmology Telescope
Switzer, E. R., Allen, C., Amiri, M., Appel, J. W., Battistelli, E. S., Burger, B., Chervenak, J. A., Dahlen, A. J., Das, S., Devlin, M. J., others, ., & Dahlen, A. (n.d.).Publication year
2008Volume
7019Page(s)
856--867The effects of the mechanical performance and alignment of the Atacama Cosmology Telescope on the sensitivity of microwave observations
Hincks, A. D., Ade, P. A., Allen, C., Amiri, M., Appel, J. W., Battistelli, E. S., Burger, B., Chervenak, J. A., Dahlen, A. J., Denny, S., others, ., & Dahlen, A. (n.d.).Publication year
2008Volume
7020Page(s)
462--471