Ragnhild Sørum Falk

  • Researcher (Statistician) PhD
  • +47 986 88 111
 

Publications 2019

Lilleborge M, Falk RS, Russnes H, Sauer T, Ursin G, Hofvind S (2019)
Risk of breast cancer by prior screening results among women participating in BreastScreen Norway
Cancer (in press)
DOI 10.1002/cncr.32330, PubMed 31206638

Norderval S, Rydningen MB, Falk RS, Stordahl A, Johannessen HH (2019)
Strong agreement between interview-obtained and self-administered Wexner and St. Mark's scores using a single questionnaire
Int Urogynecol J (in press)
DOI 10.1007/s00192-019-03945-6, PubMed 31172220

Næss-Andresen ML, Eggemoen ÅR, Berg JP, Falk RS, Jenum AK (2019)
Serum ferritin, soluble transferrin receptor, and total body iron for the detection of iron deficiency in early pregnancy: a multiethnic population-based study with low use of iron supplements
Am J Clin Nutr, 109 (3), 566-575
DOI 10.1093/ajcn/nqy366, PubMed 30831600

Robsahm TE, Heir T, Sandvik L, Prestgaard E, Tretli S, Erikssen JE, Falk RS (2019)
Changes in midlife fitness, body mass index, and smoking influence cancer incidence and mortality: A prospective cohort study in men
Cancer Med
DOI 10.1002/cam4.2383, PubMed 31270954

Aamodt IT, Lycholip E, Celutkiene J, Strömberg A, Atar D, Falk RS, von Lueder T, Hellesø R, Jaarsma T, Lie I (2019)
Health Care Professionals' Perceptions of Home Telemonitoring in Heart Failure Care: Cross-Sectional Survey
J Med Internet Res, 21 (2), e10362
DOI 10.2196/10362, PubMed 30724744

Publications 2018

Bjørke AB, Nome CG, Falk RS, Gjerstad L, Taubøll E, Heuser K (2018)
Evaluation of long-term antiepileptic drug use in patients with temporal lobe epilepsy: Assessment of risk factors for drug resistance and polypharmacy
Seizure, 61, 63-70
DOI 10.1016/j.seizure.2018.07.011, PubMed 30099235

Haaland GS, Falk RS, Lorens JB (2018)
Lower Cancer Incidence-Warfarin Effect or Immortal Time Bias?-Reply
JAMA Intern Med, 178 (4), 585-586
DOI 10.1001/jamainternmed.2018.0364, PubMed 29610893

Johannessen HH, Stafne SN, Falk RS, Stordahl A, Wibe A, Mørkved S (2018)
Prevalence and predictors of anal incontinence 6 years after first delivery
Neurourol Urodyn, 38 (1), 310-319
DOI 10.1002/nau.23854, PubMed 30311695

Johannessen HH, Stafne SN, Falk RS, Stordahl A, Wibe A, Mørkved S (2018)
Prevalence and predictors of double incontinence 1 year after first delivery
Int Urogynecol J, 29 (10), 1529-1535
DOI 10.1007/s00192-018-3577-7, PubMed 29500515

Ringen PA, Faerden A, Antonsen B, Falk RS, Mamen A, Rognli EB, Solberg DK, Andreassen OA, Martinsen EW (2018)
Cardiometabolic risk factors, physical activity and psychiatric status in patients in long-term psychiatric inpatient departments
Nord J Psychiatry, 72 (4), 296-302
DOI 10.1080/08039488.2018.1449012, PubMed 29523041

Ringen PA, Falk RS, Antonsen B, Faerden A, Mamen A, Rognli EB, Solberg DK, Martinsen EW, Andreassen OA (2018)
Using motivational techniques to reduce cardiometabolic risk factors in long term psychiatric inpatients: a naturalistic interventional study
BMC Psychiatry, 18 (1), 255
DOI 10.1186/s12888-018-1832-6, PubMed 30111298

Roscher I, Falk RS (2018)
Incomplete Data in Cutaneous Squamous Cell Carcinoma Staging System Analysis-Reply
JAMA Dermatol, 154 (12), 1489
DOI 10.1001/jamadermatol.2018.4018, PubMed 30419117

Roscher I, Falk RS, Vos L, Clausen OPF, Helsing P, Gjersvik P, Robsahm TE (2018)
Notice of Retraction and Replacement: Roscher et al. Validating 4 Staging Systems for Cutaneous Squamous Cell Carcinoma Using Population-Based Data: A Nested Case-Control Study. JAMA Dermatol. 2018;154(4):428-434
JAMA Dermatol, 154 (12), 1488-1489
DOI 10.1001/jamadermatol.2018.4023, PubMed 30419111

Roscher I, Falk RS, Vos L, Clausen OPF, Helsing P, Gjersvik P, Robsahm TE (2018)
Validating 4 Staging Systems for Cutaneous Squamous Cell Carcinoma Using Population-Based Data: A Nested Case-Control Study
JAMA Dermatol, 154 (4), 428-434
DOI 10.1001/jamadermatol.2017.6428, PubMed 29516080

Shakeel N, Sletner L, Falk RS, Slinning K, Martinsen EW, Jenum AK, Eberhard-Gran M (2018)
Prevalence of postpartum depressive symptoms in a multiethnic population and the role of ethnicity and integration
J Affect Disord, 241, 49-58
DOI 10.1016/j.jad.2018.07.056, PubMed 30096592

Sjoeen GH, Falk RS, Hauge TH, Langesaeter E (2018)
Haemodynamic stability after paracervical block: A randomized, controlled, double-blind study comparing bupivacaine-adrenaline with bupivacaine
Acta Anaesthesiol Scand, 63 (3), 373-380
DOI 10.1111/aas.13259, PubMed 30203440

Smeland KB, Loge JH, Aass HCD, Aspelin T, Bersvendsen H, Bolstad N, Fagerli UM, Falk RS, Fluge Ø, Fosså A, Holte H, Lund MB, Murbræch K, Reinertsen KV, Stenehjem JS, Kiserud CE (2018)
Chronic fatigue is highly prevalent in survivors of autologous stem cell transplantation and associated with IL-6, neuroticism, cardiorespiratory fitness, and obesity
Bone Marrow Transplant, 54 (4), 607-610
DOI 10.1038/s41409-018-0342-y, PubMed 30262906

Toftemo I, Jenum AK, Lagerløv P, Júlίusson PB, Falk RS, Sletner L (2018)
Contrasting patterns of overweight and thinness among preschool children of different ethnic groups in Norway, and relations with maternal and early life factors
BMC Public Health, 18 (1), 1056
DOI 10.1186/s12889-018-5952-1, PubMed 30139343

Publications 2017

Amdal CD, Jacobsen AB, Falk RS, Johnson E, Os SS, Warloe T, Bjordal K (2017)
Improved treatment decisions in patients with esophageal cancer
Acta Oncol, 56 (10), 1286-1294
DOI 10.1080/0284186X.2017.1346379, PubMed 28686501

Auensen A, Hussain AI, Bendz B, Aaberge L, Falk RS, Walle-Hansen MM, Bye J, Andreassen J, Beitnes JO, Rein KA, Pettersen KI, Gullestad L (2017)
Morbidity outcomes after surgical aortic valve replacement
Open Heart, 4 (1), e000588
DOI 10.1136/openhrt-2017-000588, PubMed 28674629

Auensen A, Hussain AI, Falk RS, Walle-Hansen MM, Bye J, Pettersen KI, Aukrust P, Ueland T, Gullestad LL (2017)
Associations of brain-natriuretic peptide, high-sensitive troponin T, and high-sensitive C-reactive protein with outcomes in severe aortic stenosis
PLoS One, 12 (6), e0179304
DOI 10.1371/journal.pone.0179304, PubMed 28604834

Falk RS, Tretli S, Paulsen JE, Sandvik L, Erikssen J, Heir T (2017)
Response to Intravenous Glucose-Tolerance Test and Risk of Cancer: A Long-Term Prospective Cohort Study
EBioMedicine, 21, 117-122
DOI 10.1016/j.ebiom.2017.06.018, PubMed 28687499

Furre A, Falk RS, Sandvik L, Friis S, Knutzen M, Hanssen-Bauer K (2017)
Characteristics of adolescents frequently restrained in acute psychiatric units in Norway: a nationwide study
Child Adolesc Psychiatry Ment Health, 11, 3
DOI 10.1186/s13034-016-0136-1, PubMed 28096898

Haaland GS, Falk RS, Straume O, Lorens JB (2017)
Association of Warfarin Use With Lower Overall Cancer Incidence Among Patients Older Than 50 Years
JAMA Intern Med, 177 (12), 1774-1780
DOI 10.1001/jamainternmed.2017.5512, PubMed 29114736

Jacobsen AB, Grøholt KK, Lorntzsen B, Osnes TA, Falk RS, Sigstad E (2017)
Anaplastic thyroid cancer and hyperfractionated accelerated radiotherapy (HART) with and without surgery
Eur Arch Otorhinolaryngol, 274 (12), 4203-4209
DOI 10.1007/s00405-017-4764-8, PubMed 29019001

Johannessen HH, Norderval S, Stordahl A, Falk RS, Wibe A (2017)
Interview-based versus self-reported anal incontinence using St Mark's incontinence score
Int Urogynecol J, 29 (5), 667-671
DOI 10.1007/s00192-017-3363-y, PubMed 28547271

Kazmi SS, Krog AH, Berge ST, Sundhagen JO, Sahba M, Falk RS (2017)
Patient-perceived health-related quality of life before and after laparoscopic aortobifemoral bypass
Vasc Health Risk Manag, 13, 169-176
DOI 10.2147/VHRM.S134669, PubMed 28546754

Kuhn JC, Falk RS, Langesæter E (2017)
Haemodynamic changes during labour: continuous minimally invasive monitoring in 20 healthy parturients
Int J Obstet Anesth, 31, 74-83
DOI 10.1016/j.ijoa.2017.03.003, PubMed 28404439

Mørch RH, Dieset I, Faerden A, Hope S, Aas M, Nerhus M, Gardsjord ES, Haram M, Falk RS, Joa I, Morken G, Agartz I, Aukrust P, Djurovic S, Melle I, Ueland T, Andreassen OA (2017)
Persistent increase in TNF and IL-1 markers in severe mental disorders suggests trait-related inflammation: a one year follow-up study
Acta Psychiatr Scand, 136 (4), 400-408
DOI 10.1111/acps.12783, PubMed 28815548

Ohnstad HO, Borgen E, Falk RS, Lien TG, Aaserud M, Sveli MAT, Kyte JA, Kristensen VN, Geitvik GA, Schlichting E, Wist EA, Sørlie T, Russnes HG, Naume B (2017)
Prognostic value of PAM50 and risk of recurrence score in patients with early-stage breast cancer with long-term follow-up
Breast Cancer Res, 19 (1), 120
DOI 10.1186/s13058-017-0911-9, PubMed 29137653

Robsahm TE, Falk RS, Heir T, Sandvik L, Vos L, Erikssen J, Tretli S (2017)
Cardiorespiratory fitness and risk of site-specific cancers: a long-term prospective cohort study
Cancer Med, 6 (4), 865-873
DOI 10.1002/cam4.1043, PubMed 28317282

Seland M, Smeland KB, Bjøro T, Falk RS, Fosså SD, Gjesdal CG, Godang K, Holte H, Svartberg J, Syversen U, Bollerslev J, Kiserud CE (2017)
Bone mineral density is close to normal for age in long-term lymphoma survivors treated with high-dose therapy with autologous stem cell transplantation
Acta Oncol, 56 (4), 590-598
DOI 10.1080/0284186X.2016.1267870, PubMed 28077016

Publications 2016

Eggemoen ÅR, Falk RS, Knutsen KV, Lagerløv P, Sletner L, Birkeland KI, Jenum AK (2016)
Vitamin D deficiency and supplementation in pregnancy in a multiethnic population-based cohort
BMC Pregnancy Childbirth, 16, 7
DOI 10.1186/s12884-016-0796-0, PubMed 26785795

Falk RS, Hofvind S (2016)
Overdiagnosis in Mammographic Screening because of Competing Risk of Death
Cancer Epidemiol Biomarkers Prev, 25 (5), 759-65
DOI 10.1158/1055-9965.EPI-15-0819, PubMed 26976857

Heir T, Falk RS, Robsahm TE, Sandvik L, Erikssen J, Tretli S (2016)
Cholesterol and prostate cancer risk: a long-term prospective cohort study
BMC Cancer, 16, 643
DOI 10.1186/s12885-016-2691-5, PubMed 27535659

Hofvind S, Román M, Sebuødegård S, Falk RS (2016)
Balancing the benefits and detriments among women targeted by the Norwegian Breast Cancer Screening Program
J Med Screen, 23 (4), 203-209
DOI 10.1177/0969141315625088, PubMed 26940960

Richardsen KR, Falk RS, Jenum AK, Mørkrid K, Martinsen EW, Ommundsen Y, Berntsen S (2016)
Predicting who fails to meet the physical activity guideline in pregnancy: a prospective study of objectively recorded physical activity in a population-based multi-ethnic cohort
BMC Pregnancy Childbirth, 16 (1), 186
DOI 10.1186/s12884-016-0985-x, PubMed 27460363

Robsahm TE, Falk RS, Heir T, Sandvik L, Vos L, Erikssen JE, Tretli S (2016)
Measured cardiorespiratory fitness and self-reported physical activity: associations with cancer risk and death in a long-term prospective cohort study
Cancer Med, 5 (8), 2136-44
DOI 10.1002/cam4.773, PubMed 27227704

Smeland KB, Kiserud CE, Lauritzsen GF, Blystad AK, Fagerli UM, Falk RS, Fluge Ø, Fosså A, Kolstad A, Loge JH, Maisenhölder M, Østenstad B, Kvaløy S, Holte H (2016)
A national study on conditional survival, excess mortality and second cancer after high dose therapy with autologous stem cell transplantation for non-Hodgkin lymphoma
Br J Haematol, 173 (3), 432-43
DOI 10.1111/bjh.13965, PubMed 26914167

Østerås BH, Martinsen AC, Brandal SH, Chaudhry KN, Eben E, Haakenaasen U, Falk RS, Skaane P (2016)
Classification of fatty and dense breast parenchyma: comparison of automatic volumetric density measurement and radiologists' classification and their inter-observer variation
Acta Radiol, 57 (10), 1178-85
DOI 10.1177/0284185115626469, PubMed 26792823

Østerås BH, Martinsen AC, Brandal SH, Chaudhry KN, Eben E, Haakenaasen U, Falk RS, Skaane P (2016)
BI-RADS Density Classification From Areometric and Volumetric Automatic Breast Density Measurements
Acad Radiol, 23 (4), 468-78
DOI 10.1016/j.acra.2015.12.016, PubMed 26847741

Publications 2015

Haugvik SP, Janson ET, Österlund P, Langer SW, Falk RS, Labori KJ, Vestermark LW, Grønbæk H, Gladhaug IP, Sorbye H (2015)
Surgical Treatment as a Principle for Patients with High-Grade Pancreatic Neuroendocrine Carcinoma: A Nordic Multicenter Comparative Study
Ann Surg Oncol, 23 (5), 1721-8
DOI 10.1245/s10434-015-5013-2, PubMed 26678407

Murbraech K, Smeland KB, Holte H, Loge JH, Lund MB, Wethal T, Holte E, Rösner A, Dalen H, Kvaløy S, Falk RS, Aakhus S, Kiserud CE (2015)
Heart Failure and Asymptomatic Left Ventricular Systolic Dysfunction in Lymphoma Survivors Treated With Autologous Stem-Cell Transplantation: A National Cross-Sectional Study
J Clin Oncol, 33 (24), 2683-91
DOI 10.1200/JCO.2015.60.8125, PubMed 26169610

Smeland KB, Kiserud CE, Lauritzsen GF, Fagerli UM, Falk RS, Fluge Ø, Fosså A, Kolstad A, Loge JH, Maisenhölder M, Kvaløy S, Holte H (2015)
Conditional survival and excess mortality after high-dose therapy with autologous stem cell transplantation for adult refractory or relapsed Hodgkin lymphoma in Norway
Haematologica, 100 (6), e240-3
DOI 10.3324/haematol.2014.119214, PubMed 25682605

Waage CW, Falk RS, Sommer C, Mørkrid K, Richardsen KR, Baerug A, Shakeel N, Birkeland KI, Jenum AK (2015)
Ethnic differences in postpartum weight retention: a Norwegian cohort study
BJOG, 123 (5), 699-708
DOI 10.1111/1471-0528.13321, PubMed 25716276

Publications 2014

Brandstorp-Boesen J, Falk RS, Boysen M, Brøndbo K (2014)
Long-term trends in gender, T-stage, subsite and treatment for laryngeal cancer at a single center
Eur Arch Otorhinolaryngol, 271 (12), 3233-9
DOI 10.1007/s00405-014-3100-9, PubMed 24871863

Falk RS (2014)
Why are results of organised mammography screening so difficult to interpret?
Tidsskr Nor Laegeforen, 134 (11), 1124-6
DOI 10.4045/tidsskr.13.1655, PubMed 24939774

Naume B, Synnestvedt M, Falk RS, Wiedswang G, Weyde K, Risberg T, Kersten C, Mjaaland I, Vindi L, Sommer HH, Sætersdal AB, Rypdal MC, Bendigtsen Schirmer C, Wist EA, Borgen E (2014)
Clinical outcome with correlation to disseminated tumor cell (DTC) status after DTC-guided secondary adjuvant treatment with docetaxel in early breast cancer
J Clin Oncol, 32 (34), 3848-57
DOI 10.1200/JCO.2014.56.9327, PubMed 25366688

Publications 2013

Falk RS, Hofvind S, Skaane P, Haldorsen T (2013)
Overdiagnosis among women attending a population-based mammography screening program
Int J Cancer, 133 (3), 705-12
DOI 10.1002/ijc.28052, PubMed 23355313

Falk RS, Hofvind S, Skaane P, Haldorsen T (2013)
Response to comments by Kalager et al. and Zahl et al
Int J Cancer, 133 (11), 2756-7
DOI 10.1002/ijc.28247, PubMed 23650012

Publications 2012

Austvoll-Dahlgren A, Falk RS, Helseth S (2012)
Cognitive factors predicting intentions to search for health information: an application of the theory of planned behaviour
Health Info Libr J, 29 (4), 296-308
DOI 10.1111/hir.12006, PubMed 23176026

Falk RS, Hofvind S, Skaane P (2012)
Overdiagnosis of Invasive Breast Cancer due to Mammography Screening
Ann Intern Med, 157 (3), 219; author reply 221-2
DOI 10.7326/0003-4819-157-3-201208070-00021, PubMed 22868848

Hansen BT, Nygård M, Falk RS, Hofvind S (2012)
Breast cancer and ductal carcinoma in situ among women with prior squamous or glandular precancer in the cervix: a register-based study
Br J Cancer, 107 (9), 1451-3
DOI 10.1038/bjc.2012.438, PubMed 23011481

Publications 2011

Falk RS, Hofvind S, Skaane P, Haldorsen T (2011)
Second events following ductal carcinoma in situ of the breast: a register-based cohort study
Breast Cancer Res Treat, 129 (3), 929-38
DOI 10.1007/s10549-011-1531-1, PubMed 21537936

Publications 2006

Hofvind S, Sørum R, Haldorsen T, Langmark F (2006)
[Incidence of breast cancer before and after implementation of mammography screening]
Tidsskr Nor Laegeforen, 126 (22), 2935-8
PubMed 17117191

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