Eyvind Wærsted Axelsen

• Garcia-Gallo, Esteban; Merson, Laura; Kennon, Kalynn; Kelly, Sadie; Citarella, Barbara Wanjiru & Fryer, Daniel Vidali [Show all 1,775 contributors for this article] (2022). ISARIC-COVID-19 dataset: A Prospective, Standardized, Global Dataset of Patients Hospitalized with COVID-19. Scientific Data. ISSN 2052-4463. 9(1). doi: 10.1038/s41597-022-01534-9. Full text in Research Archive
• Søraas, Arne Vasli; Kalleberg, Karl Trygve; Dahl, John Arne; Søraas, Camilla Lund; Myklebust, Tor Åge & Axelsen, Eyvind Wærsted [Show all 12 contributors for this article] (2021). Persisting symptoms three to eight months after non-hospitalized COVID-19, a prospective cohort study. PLOS ONE. ISSN 1932-6203. 16(8), p. 1–13. doi: 10.1371/journal.pone.0256142. Full text in Research Archive Show summary

  Long-COVID-19 is a proposed syndrome negatively affecting the health of COVID-19 patients. We present data on self-rated health three to eight months after laboratory confirmed COVID-19 disease compared to a control group of SARS-CoV-2 negative patients. We followed a cohort of 8786 non-hospitalized patients who were invited after SARS-CoV-2 testing between February 1 and April 15, 2020 (794 positive, 7229 negative). Participants answered online surveys at baseline and follow-up including questions on demographics, symptoms, risk factors for SARS-CoV-2, and self-rated health compared to one year ago. Determinants for a worsening of self-rated health as compared to one year ago among the SARS-CoV-2 positive group were analyzed using multivariate logistic regression and also compared to the population norm. The follow-up questionnaire was completed by 85% of the SARS-CoV-2 positive and 75% of the SARS-CoV-2 negative participants on average 132 days after the SARS-CoV-2 test. At follow-up, 36% of the SARS-CoV-2 positive participants rated their health “somewhat” or “much” worse than one year ago. In contrast, 18% of the SARS-CoV-2 negative participants reported a similar deterioration of health while the population norm is 12%. Sore throat and cough were more frequently reported by the control group at follow-up. Neither gender nor follow-up time was associated with the multivariate odds of worsening of self-reported health compared to one year ago. Age had an inverted-U formed association with a worsening of health while being fit and being a health professional were associated with lower multivariate odds. A significant proportion of non-hospitalized COVID-19 patients, regardless of age, have not returned to their usual health three to eight months after infection.

• Axelsen, Eyvind Wærsted & Krogdahl, Stein (2013). Package Templates: A Definition by Semantics-Preserving Source-to-Source Transformations to Efficient Java Code. SIGPLAN notices. ISSN 0362-1340. 48(3), p. 50–59. doi: 10.1145/2371401.2371409.
• Axelsen, Eyvind Wærsted; Sørensen, Fredrik; Krogdahl, Stein & Møller-Pedersen, Birger (2012). Challenges in the Design of the Package Template Mechanism. Lecture Notes in Computer Science (LNCS). ISSN 0302-9743. 7271, p. 268–305. doi: 10.1007/978-3-642-35551-6_7.
• Axelsen, Eyvind Wærsted & Krogdahl, Stein (2012). Package templates: a definition by semantics-preserving source-to-source transformations to efficient Java code. In Ostermann, Klaus (Eds.), GPCE '12: Proceedings of the 11th International Conference on Generative Programming and Component Engineering. Association for Computing Machinery (ACM). ISSN 978-1-4503-1129-8. p. 50–59. doi: 10.1145/2371401.2371409.
• Axelsen, Eyvind Wærsted & Krogdahl, Stein (2012). Adaptable generic programming with required type specifications and package templates. In Haupt, Michael (Eds.), Proceedings of the 11th annual international conference on Aspect-oriented Software Development. Association for Computing Machinery (ACM). ISSN 978-1-4503-1092-5. p. 83–94. doi: 10.1145/2162049.2162060.
• Axelsen, Eyvind Wærsted; Krogdahl, Stein & Møller-Pedersen, Birger (2010). Controlling Dynamic Module Composition through an Extensible Meta-Level API. SIGPLAN notices. ISSN 0362-1340. 45(12), p. 81–95.
• Sørensen, Fredrik; Axelsen, Eyvind Wærsted & Krogdahl, Stein (2010). Dynamic Composition with Package Templates. CEUR Workshop Proceedings. ISSN 1613-0073. 564.
• Sørensen, Fredrik; Axelsen, Eyvind Wærsted & Krogdahl, Stein (2010). Reuse and combination with package templates. In MASPEGHI, 2010 (Eds.), MASPEGHI '10 Proceedings of the 4th Workshop on MechAnisms for SPEcialization, Generalization and inHerItance. Association for Computing Machinery (ACM). ISSN 978-1-4503-0535-8.
• Axelsen, Eyvind Wærsted; Krogdahl, Stein & Møller-Pedersen, Birger (2010). Controlling Dynamic Module Composition through an Extensible Meta-Level API. In Clinger, William D. (Eds.), Proceedings of the 6th symposium on Dynamic languages. Association for Computing Machinery (ACM). ISSN 978-1-4503-0405-4. p. 81–96.
• Axelsen, Eyvind Wærsted & Krogdahl, Stein (2009). Groovy Package Templates Supporting Reuse and Runtime Adaption of Class Hierarchies. SIGPLAN notices. ISSN 0362-1340. 44(12), p. 15–26.
• Axelsen, Eyvind Wærsted; Sørensen, Fredrik & Krogdahl, Stein (2009). A reusable observer pattern implementation using package templates. In Wohlstadter, Eric; Daniel, Lohmann & Chris, Matthews (Ed.), Proceedings of the 8th workshop on Aspects, components, and patterns for infrastructure software. ACM New York. ISSN 978-1-60558-450-8. p. 37–42.
• Axelsen, Eyvind Wærsted & Krogdahl, Stein (2009). Groovy package templates: supporting reuse and runtime adaption of class hierarchies. In James, Noble (Eds.), Proceedings of the 5th symposium on Dynamic languages. ACM New York. ISSN 978-1-60558-769-1. p. 15–26.
• Axelsen, Eyvind Wærsted & Krogdahl, Stein (2009). Towards Pluggable Design Patterns Utilizing Package Templates. In Aalberg, Trond (Eds.), Norsk informatikkonferanse NIK 2009. Tapir Akademisk Forlag. ISSN 978-82-519-2491-7.

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