Inger Kristin Larsen has worked at the Cancer Registry of Norway since 1998. Since 2011 she has been the editor of the annual publication Cancer in Norway from the Cancer Registry of Norway. Larsen is a researcher, and since 2019 she has been deputy head of the analysis and research section. Today she leads a project on health, bowel function and quallity of life among colorectal cancer patients, and is involved in a larger research project that looks at the development of non-contagious diseases (NCD) in Norway. Larsen completed her Master of Science in Biology in 1996 at the University of Tromsø. She completed her PhD at the Faculty of Medicine at the University of Oslo in 2007.
Inger Kristin Larsen is a researcher and has been deputy head of the analysis and research section since 2019.
She has been employed at the Cancer Registry of Norway since 1998. Since 2011 she has been editor of the Cancer Registry's annual publication Cancer in Norway.
Larsen has worked on various research projects on colorectal cancer, and has written several articles on data quality.
In recent years, she has participated in research related to the risk of cancer in women who have received assisted reproduction and children born after such treatment, led a major project on cancer in immigrants and has worked with social inequalities and cancer incidence.
Today she leads a project on health, bowel function and quality of life among colorectal cancer patients, and is part of a larger research project looking at the development of non-infectious diseases (NCDs) in Norway.
Larsen completed his cand. scient degree in biology, with specialization in epidemiology and population ecology, in 1996. The degree was taken at the University of Tromsø.
She completed her PhD at the Faculty of Medicine at the University of Oslo in 2007 with the thesis: "Colorectal Cancer Screening by Flexible Sigmoidoscopy: Acceptance of screening, risk factors for neoplasia, and impact of screening on future health behaviour". The thesis was a sub-project in the NORCCAP study.
COVID-19
Larønningen S, Skog A, Gulbrandsen J, Johannesen TB, Larsen IK, Møller B, Ursin G (2021) Significant decline in cancer diagnostics during the COVID-19 pandemic Tidsskr Nor Laegeforen, 141 (4)
DOI 10.4045/tidskr.21.0068, PubMed 33685115
Nystad W, Hjellvik V, Larsen IK, Ariansen I, Helland E, Johansen KI, Gulbrandsen J, Gulseth HL, Eide HN, Håberg SE, Karlstad O, Bakken IJ (2020)
Underlying conditions in adults with covid-19
Time writ. Nor. Laegeforen., 140 (13), 1340-1345
Cancer and social inequalities
Larsen IK, Myklebust TÅ, Babigumira R, Vinberg E, Møller B, Ursin G (2020)
Education, income and risk of cancer: results from a Norwegian registry-based study
Acta Oncol, 59 (11), 1300-1307
doi 10.1080/0284186X.2020.1817548, PubMed 32924698
Immigrants and cancer
Thøgersen H, Møller B, Åsli LM, Bhargava S, Kvåle R, Fjellbirkeland L, Robsahm TE, Aaserud S, Babigumira R, Larsen IK (2020)
Waiting times and treatment following cancer diagnosis: comparison between immigrants and the Norwegian host population Acta Oncol, 59 (4), 376-383
DOI 10.1080/0284186X.2019.1711167, PubMed 31920119
Thøgersen H, Møller B, Robsahm TE, Babigumira R, Aaserud S, Larsen IK (2018)
Differences in cancer survival between immigrants in Norway and the host population
Int J Cancer, 143 (12), 3097-3105
doi 10.1002/ijc.31729, PubMed 29987865
Thøgersen H, Møller B, Robsahm TE, Aaserud S, Babigumira R, Larsen IK (2017)
Comparison of cancer stage distribution in the immigrant and host populations of Norway, 1990-2014
Int J Cancer, 141(1), 52-61
doi 10.1002/ijc.30713, PubMed 28369751
Data quality, coding and classification
Reigstad MM, Storeng R, Furu K, Bakken IJ, Engeland A, Larsen IK (2020)
Validation of Assisted Reproductive Technology in the Medical Birth Registry of Norway Versus the Norwegian Prescription Database
Epidemiology, 31(5), 681-686
DOI 10.1097/EDE.00000000000001228, PubMed 32639249
Larsen IK, Myklebust TÅ, Johannesen TB, Møller B, Hofvind S (2018)
Stage-specific incidence and survival of breast cancer in Norway: The implications of changes in coding and classification practice
Breast, 38, 107-113
doi 10.1016/j.breast.2017.12.001, PubMed 29306771
Larsen IK, Småstuen M, Johannesen TB, Langmark F, Parkin DM, Bray F, Møller B (2008)
Data quality at the Cancer Registry of Norway: an overview of comparability, completeness, validity and timeliness
Eur J Cancer, 45 (7), 1218-1231
doi 10.1016/j.ejca.2008.10.037, PubMed 19091545
Fertility treatment and cancer risk
Reigstad MM, Larsen IK, Storeng R (2018)
Cancer risk in mother and child after fertility treatment
Time writ. Nor. Laegeforen., 138 (20), 1932-1938
Reigstad MM, Storeng R, Myklebust TÅ, Oldereid NB, Omland AK, Robsahm TE, Brinton LA, Vangen S, Furu K, Larsen IK (2017)
Cancer Risk in Women Treated with Fertility Drugs According to Parity Status-A Registry-based Cohort Study
Cancer Epidemiol Biomarkers Prev, 26 (6), 953-962
doi 10.1158/1055-9965.EPI-16-0809, PubMed 28108444
Reigstad MM, Larsen IK, Myklebust TÅ, Robsahm TE, Oldereid NB, Brinton LA, Storeng R (2016)
Risk of Cancer in Children Conceived by Assisted Reproductive Technology
Pediatrics, 137 (3), e20152061
doi 10.1542/peds.2015-2061, PubMed 26908669
Colon cancer
Robsahm TE, Aagnes B, Hjartåker A, Langseth H, Bray FI, Larsen IK (2013)
Body mass index, physical activity, and colorectal cancer by anatomical subsites: a systematic review and meta-analysis of cohort studies
Eur J Cancer Prev, 22(6), 492-505 PubMed 23591454
Larsen IK, Bray F (2010)
Trends in colorectal cancer incidence in Norway 1962-2006: an interpretation of the temporal patterns by anatomic subsite
Int J Cancer, 126(3), 721-32 PubMed 19688825
Larsen IK, Småstuen M, Johannesen TB, Langmark F, Parkin DM, Bray F, Møller B (2008)
Data quality at the Cancer Registry of Norway: an overview of comparability, completeness, validity and timeliness
Eur J Cancer, 45(7), 1218-31 PubMed 19091545
Larsen IK, Grotmol T, Almendingen K, Hoff G (2007)
Impact of colorectal cancer screening on future lifestyle choices: a three-year randomized controlled trial
Clin Gastroenterol Hepatol, 5(4), 477-83 PubMed 17363335
