Ingunn Johansen

• Johansen, Ingunn; Hagen, Milada; Løkkeberg, Stine Eileen Torp; Aabrekk, Tone Bergene; Asak, Øyvind & Bengtson, May-Bente [Vis alle 22 forfattere av denne artikkelen] (2026). Anxiety and depression in newly diagnosed patients with inflammatory bowel disease (the IBSEN III study) compared with the general population in Norway. Journal of Crohn's and Colitis. ISSN 1873-9946. 20(3). doi: 10.1093/ecco-jcc/jjag021. Fulltekst i vitenarkiv Vis sammendrag

  Background and Aims: Symptoms of anxiety and depression are common in inflammatory bowel disease (IBD); the aim of this study was to assess the proportion of anxiety and depression in patients newly diagnosed with IBD, compare the rates with the Norwegian general population (NGP), and examine associations with selected sociodemographic, psychological, and disease-related factors. Methods: This prospective cohort study included newly diagnosed patients with IBD, and data from the HUNT4 survey of the NGP. Anxiety and depression were assessed using the Hospital Anxiety and Depression Scale. Crude statistical comparisons were performed using t-tests, Mann–Whitney U test, chi-square tests, or Fisher’s exact tests. Adjusted associations were modeled using multiple robust linear regression and multiple logistic regression. Results: In total, 938/1562 (62.1%) patients with IBD completed the Hospital Anxiety and Depression Scale (Crohn’s disease [CD]: n = 297, ulcerative colitis [UC]: n = 641). The proportion of anxiety was 37.4% in CD and 32.1% in UC, while depression was reported by 21.9% and 16.8%, respectively. Both rates were significantly higher than those observed in the NGP (17.5% for anxiety and 9.4% for depression). Compared with the NGP, males with CD had significantly higher levels of anxiety and depression, males with UC had elevated anxiety only, while females with CD and UC showed increased anxiety and depression. Both substantial fatigue and general self-efficacy were significantly associated with anxiety and depression in IBD. Conclusions: Newly diagnosed patients with IBD experienced significant psychological challenges compared with the NGP. Early identification of anxiety and depression may enable targeted interventions.

• Holten, Kristina Ingeborg Aass; Bernklev, Tomm; Opheim, Randi; Olsen, Bjørn Christian Elias Grova; Johansen, Ingunn & Strande, Vibeke [Vis alle 19 forfattere av denne artikkelen] (2026). Fatigue Trajectory During the First Year of an Inflammatory Bowel Disease Diagnosis, Results from the IBSEN III study. Digestive Diseases and Sciences. ISSN 0163-2116. 71, s. 2476–2487. doi: 10.1007/s10620-025-09661-0. Fulltekst i vitenarkiv Vis sammendrag

  Background: Fatigue is common in Crohn's disease (CD) and ulcerative colitis (UC), but the pathogenesis remains poorly understood. Aims: This study aimed to assess changes in fatigue prevalence during the first year after diagnosis and examine the association between disease course and substantial fatigue (SF) at the 1-year follow-up. Methods: Adults with newly diagnosed CD or UC were recruited from the population-based IBSEN III cohort. Fatigue was assessed at diagnosis and the 1-year follow-up using the Fatigue Questionnaire. Associations between SF at the 1-year follow-up and disease-related factors were quantified using multivariate logistic regression adjusted for sex, age and comorbidities. Results: In total, 596 patients were included (CD: 196, UC: 400). SF was present at both baseline and after one year of disease for 46.9% (n = 92/196) and 40.5% (n = 162/400) of patients with CD and UC, respectively. In CD, development of endoscopically non-passable stricture and/or surgically treated stricture within first year of disease (OR = 4.52, 95%CI [1.61;12.68]), self-reported flares since diagnosis (OR = 2.55, 95%CI [1.26;5.16]), female sex (OR = 3.12, 95%CI [1.53;6.37]) and comorbidities (OR = 4.05, 95%CI [1.89;8.69]) were independently associated with SF at the 1-year follow-up. In UC, SF was associated with current biological treatment (OR = 5.14, 95%CI [1.56;16.96]), increasing Mayo endoscopic score at the 1-year follow-up (OR = 1.54, 95%CI [1.01;2.35]), self-reported flares since diagnosis (OR = 2.66, 95%CI [1.24;5.72]) and female sex (OR = 2.20, 95%CI [1.06;4.57]). Conclusions: Fatigue frequently persists through the first year after IBD diagnosis. Clinical factors reflecting a more severe disease course were associated with SF one year after diagnosis in both CD and UC.

• Olsen, Bjørn Christian Elias Grova; Opheim, Randi; Kristensen, Vendel Ailin; Høivik, Marte Lie; Lund, Charlotte & Aabrekk, Tone Bergene [Vis alle 22 forfattere av denne artikkelen] (2025). Prevalence of Irritable Bowel Syndrome Based on Rome IV Criteria in Patients in Biochemical and Endoscopic Remission From Newly Diagnosed Inflammatory Bowel Disease: One- and Three-Year Results (the IBSEN III Cohort). Inflammatory Bowel Diseases. ISSN 1078-0998. 31(10), s. 2704–2713. doi: 10.1093/ibd/izaf047. Fulltekst i vitenarkiv Vis sammendrag

  Background: Distinguishing irritable bowel syndrome (IBS) from inflammatory bowel disease (IBD) flare-ups is challenging. This study used objective remission markers to accurately determine IBS prevalence in a population-based cohort of patients with IBD. Methods: Adults with ulcerative colitis and Crohn’s disease were recruited from the IBD in South-Eastern Norway III cohort study. Irritable bowel-like symptoms were assessed using the Rome IV criteria for patients in remission from IBD at 1- and 3-year follow-ups. Remission was defined objectively using the biochemical marker fecal calprotectin (FC) ≤ 250 μg/g, and comparisons to remission based on endoscopic indices were made at 1-year follow-up. Results: Among patients with FC ≤ 250 μg/g, IBS prevalences were 21.9% (n = 62/283) and 16.1% (n = 49/304) at the 1- and 3-year follow-ups, respectively, which were higher than that in the Norwegian population (9.5%; P < .005). Of patients in endoscopic remission at 1-year follow-up, 19.2% (n = 43/224) reported IBS-like symptoms, which was not significantly different from IBS prevalence for patients with FC ≤ 250 μg/g. Irritable bowel syndrome was independently associated with substantial fatigue (odds ratio: 3.05 [95% CI, 1.48-6.27]) and female sex (odds ratio: 2.67 [95% CI, 1.34-5.32]) at the 1-year follow-up. Patients with IBS reported significantly reduced health-related quality of life (HRQoL) scores. Conclusions: The prevalence of IBS among patients in remission from IBD was approximately twice as common as that in the Norwegian population. Irritable bowel syndrome was independently associated with substantial fatigue, female sex, and reduced HRQoL.

• Strande, Vibeke; Hagen, Milada; Lund, Charlotte; Asak, Øivind Wessel; Bengtson, May-Bente & Cetinkaya, Raziye Boyar [Vis alle 26 forfattere av denne artikkelen] (2025). Predicting severe inflammatory bowel disease: a risk matrix model based on the IBSEN III inception cohort. Scandinavian Journal of Gastroenterology. ISSN 0036-5521. 60(7), s. 716–727. doi: 10.1080/00365521.2025.2512591. Fulltekst i vitenarkiv Vis sammendrag

  Background and aims: Identifying patients at risk of developing severe inflammatory bowel disease (IBD) can aid treatment decisions. However, predicting disease course remains challenging. We aimed to identify predictive factors associated with severe disease course in the first year after IBD diagnosis. Methods: Newly diagnosed adult (≥18 years) patients with IBD were recruited from a population-based inception cohort (IBSEN III study). Preselected baseline factors were tested for associations with severe disease course, defined as IBD-related hospitalisation, surgery, treatment with ≥2 steroid courses, >2 biologics and/or new event of complication (stricture, fistula, abscess only applicable Crohn's disease (CD)). From a best fitted multivariable logistic regression model stratified by diagnosis and age (18-40/>40 years), probability of severe disease for given combinations of predictive factors was summarised in prediction matrices. Results: At one-year follow-up, 90/559 (16%) patients with ulcerative colitis (UC) and 74/312 (24%) with CD had severe disease. Treatment with systemic steroids, vitamin D deficiency, Simple Clinical Colitis Activity Index >2, and hypoalbuminemia at diagnosis were all significantly associated with severe disease in UC patients. CD patients with stricturing or penetrating disease behaviour, systemic steroids and hypoalbuminemia at diagnosis were associated with severe disease course. The least favourable combination of these factors increased the probability of severe disease from 3% (95%CI[0-5%]) to 72% (95%CI[66-79%]) for UC and from 8% (95%CI[3-13%]) to 88% (95%CI[84-93%]) for CD. Conclusions: Our study identified predictive factors associated with severe disease the first year after diagnosis. The probability of severe disease summarised in matrices enables easy risk stratification.

• Strande, Vibeke; Lund, Charlotte; Hagen, Milada; Bengtson, May-Bente; Cetinkaya, Raziye Boyar & Detlie, Trond Espen [Vis alle 23 forfattere av denne artikkelen] (2024). Clinical course of ulcerative colitis: Frequent use of biologics and low colectomy rate first year after diagnosis—results from the IBSEN III inception cohort. Alimentary Pharmacology and Therapeutics. ISSN 0269-2813. 60(3), s. 357–368. doi: 10.1111/apt.18097. Fulltekst i vitenarkiv Vis sammendrag

  Background: The introduction of biologic therapies and the 'treat-to-target' treatment strategy may have changed the disease course of ulcerative colitis (UC). Aims: To describe the early disease course and disease outcome at 1-year follow-up in a population-based inception cohort of adult patients with newly diagnosed UC. Methods: The Inflammatory Bowel Disease in South-Eastern Norway (IBSEN) III study is a population-based inception cohort study with prospective follow-up. Patients newly diagnosed with inflammatory bowel disease during 2017-2019 were included. Patients ≥18 years at diagnosis of UC who attended the 1-year follow-up were investigated. We registered clinical, endoscopic and demographic data at diagnosis and 1-year follow-up. Results: We included 877 patients with UC (median age 36 years (range: 18-84), 45.8% female). At diagnosis, 39.2% presented with proctitis, 24.7% left-sided colitis and 36.0% extensive colitis. At the 1-year follow-up, 13.9% experienced disease progression, and 14.5% ha

• Lund, Charlotte; Strande, Vibeke; Hagen, Milada; Bengtson, May-Bente; Cetinkaya, Raziye Boyar & Detlie, Trond Espen [Vis alle 26 forfattere av denne artikkelen] (2024). Low Surgery Rates in Early Crohn's Disease: Results from a Prospective Population-Based Inception Cohort—The Inflammatory Bowel Disease in South-Eastern Norway III Study. Inflammatory Bowel Diseases. ISSN 1078-0998. doi: 10.1093/ibd/izae297. Fulltekst i vitenarkiv Vis sammendrag

  Background and aims: The emergence of biologic therapy has coincided with a decline in surgery rates for Crohn's disease (CD). This study aims to describe the disease course, including intra-abdominal surgery rates, biologic therapy use, and variables associated with biologic therapy initiation in a cohort of newly diagnosed CD patients. Methods: The Inflammatory Bowel Disease in South-Eastern Norway (IBSEN) III study is a population-based inception cohort study. From 2017 to 2019, newly diagnosed inflammatory bowel disease patients were included for prospective follow-up. The present study included CD patients ≥ 18 years. Clinical, endoscopic, and demographic data were collected at diagnosis and 1-year follow-up. Data were analyzed by using the Kaplan-Meier method and regression analyses. Results: In total, 424 CD patients (median age 37.0 years (range 18-80), female 55.0%) were included. At diagnosis, 50.5% presented with ileal disease and 80.7% with inflammatory behavior. Within a 1-year follow-up, 39.6%

• Zerouga, Insaf; Valeur, Jørgen; Sommer, Christine; Småstuen, Milada Cvancarova; Medhus, Asle Wilhelm & Lund, Charlotte [Vis alle 22 forfattere av denne artikkelen] (2024). Dietary intake and nutritional status in patients with newly diagnosed inflammatory bowel disease: insights from the IBSEN III study. Scandinavian Journal of Gastroenterology. ISSN 0036-5521. 59(6), s. 1–9. doi: 10.1080/00365521.2024.2313056. Fulltekst i vitenarkiv Vis sammendrag

  Background: Dietary recommendations in inflammatory bowel disease (IBD) are inconclusive, and patients may follow restrictive diets with increased risk of malnutrition. The aim of this study was to compare dietary intakes and nutritional status in men and women with newly diagnosed IBD with a general population sample, and to investigate whether intakes were in line with the Nordic Nutrition Recommendations. Methods: This was a cross-sectional study including adults≥ 40 years with IBD from the Inflammatory Bowel Disease in South-Eastern Norway (IBSEN) III cohort study. A validated food frequency questionnaire (FFQ) was used in dietary data collection, and a sample from the seventh survey of the Tromsø Study was included as a comparison group. Results: A total of 227 men and women with IBD were included. IBD patients had higher intake of grain products, sweetened beverages, energy, fat and polyunsaturated fat (PUFA), but lower intake of dairy products, alcohol and iodine compared to adults from the comparison sample (p < 0.01). Intakes of saturated fat and carbohydrates in both genders, and vitamin D in women were not within recommended levels. Anemia and hypoalbuminemia were more prevalent in IBD patients than in the comparison sample. Conclusions: Dietary intakes in newly diagnosed IBD patients were mostly in line with Nordic Nutrition Recommendations. Higher proportion of IBD patients exceeded recommended allowances of fat and added sugar than the comparison sample. Insufficient micronutrient intake, anemia and hypoalbuminemia are present challenges in IBD patients that require monitoring.

• Johansen, Ingunn; Småstuen, Milada Cvancarova; Løkkeberg, Stine Eileen Torp; Kristensen, Vendel Ailin; Høivik, Marte Lie & Lund, Charlotte [Vis alle 16 forfattere av denne artikkelen] (2023). Symptoms and symptom clusters in patients newly diagnosed with inflammatory bowel disease: results from the IBSEN III Study. BMC Gastroenterology. 23(1). doi: 10.1186/s12876-023-02889-y. Fulltekst i vitenarkiv Vis sammendrag

  Patients with inflammatory bowel disease report multiple symptoms, but the relationships among co-occurring symptoms are poorly understood. This study aimed to examine the prevalence of symptoms and explore symptom clusters and possible associations between symptom clusters and socio-demographic and clinical variables in patients newly diagnosed with inflammatory bowel disease. Methods The IBSEN III study is a prospective population-based inception cohort of patients with inflammatory bowel disease. This study used patient data from the three largest hospitals in the study catchment area. The Memorial Symptom Assessment Scale was used to assess the prevalence of symptoms. Symptom clusters were identified using principal component analysis. Possible associations between socio-demographic and clinical variables and symptom cluster membership were estimated using regression analysis. Results Of the 573 patients (age, ≥18 years) diagnosed with inflammatory bowel disease, 350 (61.1%) completed the questionnaire (responders). Eleven symptoms were reported by >50% of the responders. The three most prevalent symptoms were bloating (84%), drowsiness (81%), and lack of energy (81%). Three symptom clusters were identified: psychological (56% of the patients), impaired energy (28%), and physical (16%) clusters. Multinomial regression analysis revealed that vitamin D deficiency was significantly associated with the impaired energy cluster (odds ratio=2.49, 95% confidence interval [1.00-6.2], p=0.05). Conclusions We found high symptom prevalence in patients newly diagnosed with inflammatory bowel disease. Three distinct symptom clusters were identified, and the psychological cluster includes >50% of the patients. Vitamin D deficiency is the only factor associated with cluster membership, namely the impaired energy cluster.

• Holten, Kristina Ingeborg; Bernklev, Tomm; Opheim, Randi; Johansen, Ingunn; Olsen, Bjørn Christian Elias Grova & Lund, Charlotte [Vis alle 22 forfattere av denne artikkelen] (2023). Fatigue in Patients with Newly Diagnosed Inflammatory Bowel Disease: Results from a Prospective Inception Cohort, the IBSEN III Study. Journal of Crohn's and Colitis. ISSN 1873-9946. 17(11), s. 1781–1790. doi: 10.1093/ecco-jcc/jjad094. Fulltekst i vitenarkiv Vis sammendrag

  Background and aims: Although fatigue is common in inflammatory bowel disease (IBD), its pathogenesis remains unclear. This study aimed to determine the prevalence of fatigue and its associated factors in a cohort of patients newly diagnosed with IBD. Methods: Patients ≥18 years were recruited from the Inflammatory Bowel Disease South-Eastern Norway (IBSEN III) study, a population-based, observational inception cohort. Fatigue was assessed using the Fatigue Questionnaire and compared with data from a Norwegian general population. Univariate and multivariate linear and logistic regression analyses were performed to evaluate the associations of total fatigue (TF) (continuous score) and substantial fatigue (SF) (dichotomized score ≥4) with sociodemographic, clinical, endoscopic, laboratory, and other relevant patient data. Results: In total, 983/1509 (65.1%) patients with complete fatigue data were included (ulcerative colitis (UC), 68.2%; Crohn's disease (CD), 31.8%). The prevalence of SF was higher in CD (69.6%) compared with UC (60.2%) (p<0.01), and in both diagnoses when compared to the general population (p<0.001).In the multivariate analyses, depressive symptoms, pain intensity, and sleep disturbances were associated with increased TF for both diagnoses. In addition, increased clinical disease activity and Mayo endoscopic score were significantly associated with TF in UC, whereas all disease-related variables were insignificant in CD. Similar findings were observed for SF, except regarding the Mayo endoscopic score. Conclusions: SF affects approximately two-thirds of patients newly diagnosed with IBD. Fatigue was associated with depressive symptoms, sleep disturbances, and increased pain intensity in both diagnoses, while clinical and endoscopic activity were associated factors only in UC.

• Olsen, Bjørn Christian Elias Grova; Opheim, Randi; Høivik, Marte Lie; Lund, Charlotte; Aabrekk, Tone Bergene & Johansen, Ingunn [Vis alle 15 forfattere av denne artikkelen] (2023). Health-related quality of life in patients with newly diagnosed inflammatory bowel disease: an observational prospective cohort study (IBSEN III). Quality of Life Research. ISSN 0962-9343. 32(10), s. 2951–2964. doi: 10.1007/s11136-023-03435-9. Fulltekst i vitenarkiv Vis sammendrag

  Purpose This unselected, population-based cohort study aimed to determine the level of health-related quality of life (HRQoL) in patients with Crohn’s disease (CD) and ulcerative colitis (UC) at the time of diagnosis compared with a reference population and identify the demographic factors, psychosocial measures, and disease activity markers associated with HRQoL. Methods Adult patients newly diagnosed with CD or UC were prospectively enrolled. HRQoL was measured using the Short Form 36 (SF-36) and Norwegian Inflammatory Bowel Disease Questionnaires. Clinical significance was assessed using Cohen’s d effect size and further compared with a Norwegian reference population. Associations between HRQoL and symptom scores, demographic factors, psychosocial measures, and disease activity markers were analyzed. Results Compared with the Norwegian reference population, patients with CD and UC reported significantly lower scores in all SF-36 dimensions, except for physical functioning. Cohen’s d effect sizes for men and women in all SF-36 dimensions were at least moderate, except for bodily pain and emotional role for men with UC and physical functioning for both sexes and diagnoses. In the multivariate regression analysis, depression subscale scores ≥ 8 on the Hospital Anxiety and Depression Scale, substantial fatigue, and high symptom scores were associated with reduced HRQoL. Conclusion Patients newly diagnosed with CD and UC reported statistically and clinically significantly lower scores in seven of the eight SF-36 dimensions than the reference population. Symptoms of depression, fatigue, and elevated symptom scores were associated with poorer HRQoL.

• Kristensen, Vendel Ailin; Opheim, Randi; Perminow, Gøri Margrete; Huppertz-Hauss, Gert; Detlie, Trond Espen & Lund, Charlotte [Vis alle 39 forfattere av denne artikkelen] (2021). Inflammatory bowel disease in South-Eastern Norway III (IBSEN III): a new population-based inception cohort study from South-Eastern Norway. Scandinavian Journal of Gastroenterology. ISSN 0036-5521. 56(8), s. 899–905. doi: 10.1080/00365521.2021.1922746. Fulltekst i vitenarkiv Vis sammendrag

  Background and aim: Modern treatment strategies for inflammatory bowel disease (IBD) are postulated to change the natural disease course. Inception cohort studies are the gold standard for investigating such changes. We have initiated a new population-based inception cohort study; Inflammatory bowel disease in South Eastern Norway III (IBSEN III). In this article, we describe the study protocol and baseline characteristics of the cohort. Methods: IBSEN III is an ongoing, population-based observational inception cohort study with prospective follow-up. Adult and pediatric patients with suspected IBD in the South-Eastern Health Region of Norway (catchment area of 2.95 million inhabitants in 2017), during the 3-year period from 2017 to 2019, were eligible for inclusion. Comprehensive clinical, biochemical, endoscopic, demographic, and patient-reported data were collected at the time of diagnosis and throughout standardized follow-up. For a portion of the patients, extensive biological material was biobanked. Results: The study included 2168 patients, of whom 1779 were diagnosed with IBD (Crohn's disease: 626, ulcerative colitis: 1082, IBD unclassified: 71). In 124 patients, there were subtle findings indicative of, but not diagnostic for, IBD. The remaining 265 patients were classified as symptomatic non-IBD controls. Conclusion: We have included patients in a comprehensive population-based IBD cohort from a catchment population of 2.95 million, and a unique biobank with materials from newly diagnosed and treatment-naïve IBD patients and symptomatic non-IBD controls. We believe this cohort will add important knowledge about IBD in the years to come.

• Berger, Ola; Sand, Kari; Johansen, Ingunn; Loge, Jon Håvard; Kaasa, Stein & Grønberg, Bjørn H. (2014). What Do Cancer Patients and Members of Ethical Review Boards in Norway Consider Important Elements of Informed Consent Documents? AJOB Empirical Bioethics. ISSN 2329-4515. 5(4), s. 1–13. doi: 10.1080/23294515.2014.938199. Fulltekst i vitenarkiv Vis sammendrag

  Background: The length and content of informed consent documents (ICDs) in clinical trials have increased in recent decades. In Norway, Regional Committees for Medical and Health Research Ethics (RECs) approve ICDs according to national and international guidelines. The aim of this study was to investigate how important members of these committees and cancer patients consider the information elements found in ICDs to be. Methods: Using the Delphi technique, an expert group developed a questionnaire for asking the participants how they rated the importance of 31 information elements, and whether they were familiar with or considered seven terms/phrases commonly used in ICDs difficult to understand. All 123 members of the Norwegian RECs and 200 consecutive cancer patients at the outpatient cancer clinic at St. Olavs Hospital, Trondheim University Hospital, received the questionnaire. Group comparisons were conducted using chi-squared and Fisher`s exact tests. The statistical significance level was defined as p < .01 due to multiple comparisons. Results: The committee members (n = 81) and patients (n = 104) rated almost all (95%) of the information elements as important. Very few (4%) information elements were rated as not important. We did not find any significant differences in the rating of the elements between subgroups of patients, between subgroups of REC members, or between patients and REC members. The patients were not familiar with all terms commonly found in ICDs, and the REC members were not able to predict which terms the patients were familiar with. Patients rated the information elements as more important if they were familiar with the terms used in the respective elements. Conclusions: The participants rated almost all information elements important to include in ICDs, suggesting that ICDs cannot necessarily be shortened by leaving out information elements. Ensuring that patients understand all terms in an ICD appears to be a particularly important part of the informed consent process.

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• Johansen, Ingunn; Hagen, Milada; Løkkeberg, Stine Eileen Torp; Kristensen, Vendel; Høivik, Marte Lie & Lund, Charlotte [Vis alle 24 forfattere av denne artikkelen] (2024). P247 Anxiety and depression in newly diagnosed patients with Inflammatory Bowel Disease – Results from the IBSEN III study. Fulltekst i vitenarkiv
• Kristensen, Vendel; Olsen, Bjørn & Johansen, Ingunn (2023). IBSEN III-studien – femårskontrollen er i gang. Fordøyelsen. ISSN 0808-4297. Fulltekst i vitenarkiv
• Johansen, Ingunn; Småstuen, Milada Cvancarova; Løkkeberg, Stine Eileen Torp; Kristensen, Vendel Ailin; Høivik, Marte Lie & Lund, Charlotte [Vis alle 16 forfattere av denne artikkelen] (2022). Symptoms and symptom clusters in patients newly diagnosed with inflammtory bowel disease – results from the IBSEN III study. Fulltekst i vitenarkiv
• Johansen, Ingunn (2019). Symptombyrde, livskvalitet og sykefravær. Fordøyelsen. Tidsskrift for landsforeningen mot fordøyelsessykdommer. Fulltekst i vitenarkiv
• Johansen, Ingunn (2019). IBSEN III: Symptom burden in patients with inflammatory bowel disease - impact on health-related quality of life and sick leave. Fulltekst i vitenarkiv
• Ekman, Stina; Fladeby, Nina; Johansen, Ingunn; Hardeland, Camilla & Leonardsen, Ann-Chatrin Linqvist (2019). Hvordan kan sykepleierstudenter få det bedre i praksis? Tidsskriftet sykepleien. ISSN 0806-7511. doi: 10.4220/Sykepleiens.2019.74902. Fulltekst i vitenarkiv
• Berger, Ola; Sand, Kari; Johansen, Ingunn; Kaasa, Stein; Loge, Jon Håvard & Grønberg, Bjørn Henning (2014). What Do Cancer Patients and Members of Ethical Review Boards in Norway Consider Important Elements in Informed Consent Documents? Fulltekst i vitenarkiv
• Berger, Ola; Sand, Kari; Johansen, Ingunn; Loge, Jon Håvard; Kaasa, Stein & Grønberg, Bjørn Henning (2014). What Do Cancer Patients and Members of Ethical Review Boards in Norway Consider Important Elements in Informed Consent Documents? Palliative Medicine. ISSN 0269-2163. 28(6). doi: 10.1177/0269216314532748. Fulltekst i vitenarkiv

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