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Gerdin, Bengt, MD, PhD, professorORCID iD iconorcid.org/0000-0001-8360-5387
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Publications (10 of 136) Show all publications
Berggren, C., Gerdin, B. & Karabag, S. F. (2025). Developing Surveys on Questionable Research Practices: Four Challenging Design Problems. Journal of Academic Ethics, 23(3), 1189-1210
Open this publication in new window or tab >>Developing Surveys on Questionable Research Practices: Four Challenging Design Problems
2025 (English)In: Journal of Academic Ethics, ISSN 1570-1727, E-ISSN 1572-8544, Vol. 23, no 3, p. 1189-1210Article in journal (Refereed) Published
Abstract [en]

The exposure of scientific scandals and the increase of dubious research practices have generated a stream of studies on Questionable Research Practices (QRPs), such as failure to acknowledge co-authors, selective presentation of findings, or removal of data not supporting desired outcomes. In contrast to high-profile fraud cases, QRPs can be investigated using quantitative, survey-based methods. However, several design issues remain to be solved. This paper starts with a review of four problems in the QRP research: the problem of precision and prevalence, the problem of social desirability bias, the problem of incomplete coverage, and the problem of controversiality, sensitivity and missing responses. Various ways to handle these problems are discussed based on a case study of the design of a large, cross-field QRP survey in the social and medical sciences in Sweden. The paper describes the key steps in the design process, including technical and cognitive testing and repeated test versions to arrive at reliable survey items on the prevalence of QRPs and hypothesized associated factors in the organizational and normative environments. Partial solutions to the four problems are assessed, unresolved issues are discussed, and tradeoffs that resist simple solutions are articulated. The paper ends with a call for systematic comparisons of survey designs and item quality to build a much-needed cumulative knowledge trajectory in the field of integrity studies.

Place, publisher, year, edition, pages
Springer, 2025
Keywords
Questionable Research Practices, QRPs, Normative Environment, Organizational Climate, Survey Development, Design Problems, Problem of Incomplete Coverage, Survey Design Process, Baseline Survey, Pre-testing, Technical Assessment, Cognitive Interviews, Social Desirability, Sensitivity, Organizational Controversiality, Challenge of Nonresponse, Qualitative Research, Quantitative Research
National Category
Information Systems Ethics
Identifiers
urn:nbn:se:uu:diva-566340 (URN)10.1007/s10805-024-09565-0 (DOI)001302964800001 ()2-s2.0-85202966280 (Scopus ID)
Funder
Forte, Swedish Research Council for Health, Working Life and Welfare, 2018-00321
Available from: 2025-09-08 Created: 2025-09-08 Last updated: 2025-09-08Bibliographically approved
Kouppis, E., Ekselius, L. & Gerdin, B. (2025). Injury recidivism in women with personality disorders reflects an increased risk for both natural and unnatural death. Injury, 56(7), Article ID 112374.
Open this publication in new window or tab >>Injury recidivism in women with personality disorders reflects an increased risk for both natural and unnatural death
2025 (English)In: Injury, ISSN 0020-1383, E-ISSN 1879-0267, Vol. 56, no 7, article id 112374Article in journal (Refereed) Published
Abstract [en]

Background: A small proportion of patients account for a disproportionate use of emergency healthcare services and exhibit an increased mortality. This group includes individuals with different conditions and risk-taking behaviors. Among them are persons diagnosed with personality disorders, who are particularly susceptible to injuries and intoxications-factors that contribute to an increased risk of premature death, especially from unnatural causes.. In this study in women with a personality disorder diagnosis, we hypothesized that the number of inpatient episodes due to injuries or intoxications would be independently related to the mortality risk for both natural and unnatural causes.

Methods: A cohort of all women who received a personality disorder diagnosis in the Swedish National Patient Register during the years 1997-2015 (n = 44,221) was followed up until December 31, 2015. All inpatient treatment periods with diagnoses of injuries or intoxications were documented. Information on all deaths was obtained from The Swedish Cause of Death Register.

Results: Multivariable Cox proportional hazards regressions, adjusted for relevant confounders revealed that the number of inpatient care episodes due to injuries or intoxications was independently related to later all-cause mortality, as well as mortality from unnatural and natural causes, and suicidal actions.

Conclusions: The results motivate particular attention to women with recurrent injuries or intoxications with an assessment of the need for non-emergent measures to decrease the risk of early death, including suicide.

Place, publisher, year, edition, pages
Elsevier, 2025
Keywords
Mortality, Personality disorders, Emergency service, Injury recidivism
National Category
Psychiatry
Identifiers
urn:nbn:se:uu:diva-562184 (URN)10.1016/j.injury.2025.112374 (DOI)001509701600001 ()40344856 (PubMedID)
Available from: 2025-07-03 Created: 2025-07-03 Last updated: 2025-07-03Bibliographically approved
Karabag, S. F., Berggren, C., Pielaszkiewicz, J. & Gerdin, B. (2025). Minimizing Questionable Research Practices: The Role of Norms, Counter Norms, and Micro-Organizational Ethics Discussion. Journal of Academic Ethics, 23(1), 113-139
Open this publication in new window or tab >>Minimizing Questionable Research Practices: The Role of Norms, Counter Norms, and Micro-Organizational Ethics Discussion
2025 (English)In: Journal of Academic Ethics, ISSN 1570-1727, E-ISSN 1572-8544, Vol. 23, no 1, p. 113-139Article in journal (Refereed) Published
Abstract [en]

Breaches of research integrity have gained considerable attention due to high-profile scandals involving questionable research practices by reputable scientists. These practices include plagiarism, manipulation of authorship, biased presentation of findings and misleading reports of significance. To combat such practices, policymakers tend to rely on top-down measures, mandatory ethics training and stricter regulation, despite limited evidence of their effectiveness. In this study, we investigate the occurrence and underlying factors of questionable research practices (QRPs) through an original survey of 3,005 social and medical researchers at Swedish universities. By comparing the role of the organizational culture, researchers ' norms and counter norms, and individual motivation, the study reveals that the counter norm of Biasedness-the opposite of universalism and skepticism-is the overall most important factor. Thus, Biasedness was related to 40-60% of the prevalence of the questionable practices. The analysis also reveals the contradictory impact of other elements in the organizational environment. Internal competition was positively associated with QRP prevalence, while group-level ethics discussions consistently displayed a negative association with such practices. Furthermore, in the present study items covering ethics training and policies have only a marginal impact on the prevalence of these practices. The organizational climate and normative environment have a far greater influence. Based on these findings, it is suggested that academic leaders should prioritize the creation and maintenance of an open and unbiased research environment, foster a collaborative and collegial climate, and promote bottom-up ethics discussions within and between research groups.

Place, publisher, year, edition, pages
Springer, 2025
Keywords
Questionable research practices, Scientific norms, Counter norms, Organizational climate, Competition, Ethics training
National Category
Information Studies Social Work
Identifiers
urn:nbn:se:uu:diva-556771 (URN)10.1007/s10805-024-09520-z (DOI)001200374300001 ()2-s2.0-105001087624 (Scopus ID)
Funder
Forte, Swedish Research Council for Health, Working Life and Welfare, 2018-00321
Available from: 2025-05-19 Created: 2025-05-19 Last updated: 2025-05-19Bibliographically approved
Ekselius, L., Gerdin, B. & Vahlquist, A. (2024). The Syphilis Pandemic Prior to Penicillin: Origin, Health Issues, Cultural Representation and Ethical Challenges. Acta Dermato-Venereologica, 104, Article ID adv34879.
Open this publication in new window or tab >>The Syphilis Pandemic Prior to Penicillin: Origin, Health Issues, Cultural Representation and Ethical Challenges
2024 (English)In: Acta Dermato-Venereologica, ISSN 0001-5555, E-ISSN 1651-2057, Vol. 104, article id adv34879Article, review/survey (Refereed) Published
Abstract [en]

Syphilis is currently a treatable disease, with a low incidence in most developed countries, although the prevalence has increased recently, especially among men -who -have -sex -with -men. In many of the least developed countries, however, syphilis is still a major health problem, although the problem is not comparable to the desperate situation worldwide less than 80 years ago. At that time, and for many centuries previously, syphilis dramatically affected the lives and health of individuals and threatened the well-being of many societies. This review examines the aetiology, transmission, and many manifestations of syphilis from a historical perspective, emphasizing morbidity, treatment, psychosocial and cultural manifestations, as well as ethical issues uncovered in the clinical search for knowledge about the manifestations of the disease.

Place, publisher, year, edition, pages
MJS Publishing, 2024
Keywords
ethics, medical, history of medicine, medicine in the arts, pandemics, syphilis
National Category
Microbiology in the medical area Dermatology and Venereal Diseases History
Identifiers
urn:nbn:se:uu:diva-535385 (URN)10.2340/actadv.v104.34879 (DOI)001260245200054 ()38436430 (PubMedID)2-s2.0-85186959217 (Scopus ID)
Available from: 2024-07-31 Created: 2024-07-31 Last updated: 2026-03-26Bibliographically approved
Kouppis, E., Gerdin, B., Björkenstam, C., Björkenstam, E. & Ekselius, L. (2022). Effect of comorbid ADHD on mortality in women with borderline personality disorder. Borderline Personality Disorder and Emotion Dysregulation, 9(1), Article ID 25.
Open this publication in new window or tab >>Effect of comorbid ADHD on mortality in women with borderline personality disorder
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2022 (English)In: Borderline Personality Disorder and Emotion Dysregulation, E-ISSN 2051-6673, Vol. 9, no 1, article id 25Article in journal (Refereed) Published
Abstract [en]

Background: Many similarities exist between borderline personality disorder (BPD) and attention-deficit/hyperactivity disorder (ADHD), more so in women than in men. People with comorbid ADHD and BPD represent a subgroup of BPD patients with distinct symptom expression and, consequently, a different prognosis. We used Swedish national high quality registers to assess whether such comorbidity is related to increased mortality risk. The study focused on women with BPD because they are more likely than men to be clinically diagnosed with BPD and present a higher mortality risk, especially for unnatural causes of death, including suicide. Findings: In a cohort of 15 847 women diagnosed with BPD a subsequent clinical diagnosis of ADHD did not influence the overall risk of mortality, including suicide. Conclusions: Women with comorbid ADHD and BPD have a similar mortality risk as those only diagnosed with BPD.

Place, publisher, year, edition, pages
Springer Nature, 2022
Keywords
Attention deficiency and hyperactivity disorder, Borderline personality disorder, Clinical diagnosis, Comorbidity, Mortality, Register, Women
National Category
Psychiatry
Identifiers
urn:nbn:se:uu:diva-489233 (URN)10.1186/s40479-022-00196-8 (DOI)000876978600001 ()36316740 (PubMedID)
Funder
Uppsala University
Available from: 2022-11-29 Created: 2022-11-29 Last updated: 2023-02-26Bibliographically approved
Kouppis, E., Björkenstam, C., Gerdin, B., Ekselius, L. & Björkenstam, E. (2020). Childbearing and mortality among women with personality disorders: nationwide registered-based cohort study. BJPsych Open, 6(5), Article ID e95.
Open this publication in new window or tab >>Childbearing and mortality among women with personality disorders: nationwide registered-based cohort study
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2020 (English)In: BJPsych Open, E-ISSN 2056-4724, Vol. 6, no 5, article id e95Article in journal (Refereed) Published
Abstract [en]

Background

People with a personality disorder have a higher mortality and reduced life expectancy than the general population. Childbearing is thought to have a protective effect on morbidity and mortality. Yet, there are no studies on whether childbearing is related to a lower mortality among women with personality disorder.

Aims

This study examined associations between childbearing and mortality among women with personality disorder. Our hypothesis was that parity would be associated with lower mortality.

Method

This register-based cohort study included 27 412 women treated for personality disorder in in-patient or specialised out-patient care between 1990 and 2015. We used nationwide population-based registers to obtain information on sociodemographics, child delivery, healthcare use and mortality. Mortality risk estimates were calculated as hazard ratios (HRs) with 95% CIs using Cox regression. Adjustments were made for year of birth, educational level, age at diagnosis, comorbidity and severity of personality disorder.

Results

Nulliparous women had a nearly twofold increased mortality risk (adjusted HR = 1.78, 95% CI 1.50–2.12) compared with parous women and over twofold mortality risk (adjusted HR = 2.29, 95% CI 1.72–3.04) compared with those giving birth after their first personality disorder diagnosis. Those giving birth before their first personality disorder diagnosis had a 1.5-fold higher risk of mortality than those giving birth after their first personality disorder diagnosis (adjusted HR = 1.48, 95% CI 1.06–2.07). There was a threefold risk of suicide in nulliparous women compared with those giving birth after their first personality disorder diagnosis (adjusted HR = 2.90, 95% CI 1.97–4.26).

Conclusions

Childbearing history should be an integral part of the clinical evaluation of women with personality disorder.

Place, publisher, year, edition, pages
CAMBRIDGE UNIV PRESS, 2020
Keywords
Personality disorder, childbearing, women, national registers, mortality
National Category
Psychiatry Gynaecology, Obstetrics and Reproductive Medicine
Identifiers
urn:nbn:se:uu:diva-421844 (URN)10.1192/bjo.2020.77 (DOI)000562434900001 ()32838831 (PubMedID)
Available from: 2020-10-19 Created: 2020-10-19 Last updated: 2025-02-11Bibliographically approved
Nilsson, A., Orwelius, L., Sveen, J., Willebrand, M., Ekselius, L., Gerdin, B. & Sjoberg, F. (2019). Anxiety and depression after burn, not as bad as we think-A nationwide study. Burns, 45(6), 1367-1374
Open this publication in new window or tab >>Anxiety and depression after burn, not as bad as we think-A nationwide study
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2019 (English)In: Burns, ISSN 0305-4179, E-ISSN 1879-1409, Vol. 45, no 6, p. 1367-1374Article in journal (Refereed) Published
Abstract [en]

Objective: A history of psychiatric disorders is more common among patients who have had burns than in the general population. To try and find out the scale of the problem we have assessed self-reported symptoms of anxiety and depression after a burn. Methods: Consecutive patients with burns measuring more than 10% total body surface area or duration of stay in hospital of seven days or more were included. Personal and clinical details about the patients were extracted from the database at each center. Data were collected from the Hospital Anxiety and Depression Scale, as well as Health-Related Quality of Life (HRQoL; Short Form-36, SF-36) and questionnaires about socioeconomic factors. All results were obtained 12 and 24 months after the burn, and compared with those from a reference group. Results: A total of 156 patients responded to the questionnaires. Mean (SD) age and TBSA (%) were 46 (16.4) years and 23.6 (19.2) %, respectively. There were no differences in incidence between the burn and reference groups in anxiety or depression either 12 or 24 months after the burn. Those who reported higher anxiety and depression scores also had consistently poorer HRQoL as assessed by the SF-36. Conclusion: Seen as a group, people who have had burns report anxiety and depression the same range as a reference group. Some patients, however, express more anxiety and depression, and concomitantly poorer HRQoL. These patients should be identified, and offered additional support. (C) 2019 Elsevier Ltd and ISBI. All rights reserved.

Place, publisher, year, edition, pages
ELSEVIER SCI LTD, 2019
Keywords
Burns, Quality of life, Anxiety, Depression, Follow-up studies
National Category
Psychiatry
Identifiers
urn:nbn:se:uu:diva-394054 (URN)10.1016/j.burns.2019.03.014 (DOI)000483339500013 ()31378623 (PubMedID)
Available from: 2019-10-03 Created: 2019-10-03 Last updated: 2019-10-03Bibliographically approved
Kiwanuka, E., Lee, C. C. .., Hackl, F., Caterson, E. J., Junker, J., Gerdin, B. & Eriksson, E. (2016). Cdc42 and p190RhoGAP activation by CCN2 regulates cell spreading and polarity and induces actin disassembly in migrating keratinocytes. International Wound Journal, 13(3), 372-381
Open this publication in new window or tab >>Cdc42 and p190RhoGAP activation by CCN2 regulates cell spreading and polarity and induces actin disassembly in migrating keratinocytes
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2016 (English)In: International Wound Journal, ISSN 1742-4801, E-ISSN 1742-481X, Vol. 13, no 3, p. 372-381Article in journal (Refereed) Published
Abstract [en]

Cell migration requires spatiotemporal integration of signals that regulate cytoskeletal dynamics. In response to a migration-promoting agent, cells begin to polarise and extend protrusions in the direction of migration. These cytoskeletal rearrangements are orchestrated by a variety of proteins, including focal adhesion kinase (FAK) and the Rho family of GTPases. CCN2, also known as connective tissue growth factor, has emerged as a regulator of cell migration but the mechanism by which CCN2 regulates keratinocyte function is not well understood. In this article, we sought to elucidate the basicmechanism of CCN2-induced cellmigration in human keratinocytes. Immunohistochemical staining was used to demonstrate that treatment with CCN2 induces a migratory phenotype through actin disassembly, spreading of lamellipodia and re-orientation of the Golgi. In vitro assays were used to show that CCN2-induced cell migration is dependent on FAK, RhoA and Cdc42, but independent of Rac1. CCN2-treated keratinocytes displayed increased Cdc42 activity and decreased RhoA activity up to 12 hours post-treatment, with upregulation of p190RhoGAP. An improved understanding of how CCN2 regulates cell migration may establish the foundation for future therapeutics in fibrotic and neoplastic diseases.

Keywords
RhoGTPase, Actin, CCN2, CTGF, Keratinocyte migration
National Category
Medical and Health Sciences
Research subject
Plastic Surgery
Identifiers
urn:nbn:se:uu:diva-213565 (URN)10.1111/iwj.12315 (DOI)000379940300011 ()25185742 (PubMedID)
External cooperation:
Available from: 2013-12-28 Created: 2013-12-28 Last updated: 2017-12-06Bibliographically approved
Gauffin, E., Öster, C., Sjöberg, F., Gerdin, B. & Ekselius, L. (2016). Health-related quality of life (EQ-5D) early after injury predicts long-term pain after burn. Burns, 42(8), 1781-1788
Open this publication in new window or tab >>Health-related quality of life (EQ-5D) early after injury predicts long-term pain after burn
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2016 (English)In: Burns, ISSN 0305-4179, E-ISSN 1879-1409, Vol. 42, no 8, p. 1781-1788Article in journal (Refereed) Published
Abstract [en]

Background: Chronic pain after burn can have severe physical and psychological effects on former patients years after the initial injury. Although the issue of pain after burn has gained increased attention over the past years, prospective, longitudinal studies are scarce. Our aim was to prospectively investigate consecutive burn patients for pain severity over time and to evaluate the prevalence and characteristics of post-burn pain to 2-7 years after the burn. As an additional aim, the effects of burn and individual-related factors, especially health related Quality of Life (HRQoL), were investigated.

Method: Sixty-seven consecutive burn patients were assessed during acute care at 3, 6, 12 and 24 months, as well as at 2-7 years post-burn. HRQoL, symptoms of post-traumatic stress disorder (PTSD) and other psychiatric disorders were investigated. During the interviews that took place 2-7 years after the injury (mean 4.6 1.9 years), current chronic post-burn pain was assessed using the Brief Pain Inventory-Short Form (BPI-SF).

Results: One-third of the patients still reported pain 2-7 years after the injury. Pain severity and interference with daily life were mainly mild to moderate though they were found to be associated with significantly lower HRQoL. Chronic pain after bum was associated with both burn- and individual-related factors. In logistic regression analysis HRQoL at 3 and 12 months and symptoms of PTSD at 12 months were independent factors in predicting chronic pain after burn.

Conclusion: Pain after burn becomes a chronic burden for many former burn patients and decreases HRQoL. A novel finding in this study was that HRQoL assessed early after burn was a predictor for the development of chronic pain. This finding may help to predict future pain problems and serve as an indicator for pain preventive measures.

Keywords
Burns, Pain, Brief Pain Inventory-Short Form, Health-related quality of life, Post-traumatic stress disorder
National Category
Medical and Health Sciences
Identifiers
urn:nbn:se:uu:diva-314419 (URN)10.1016/j.burns.2016.05.016 (DOI)000391073900021 ()
Funder
Swedish Research CouncilForte, Swedish Research Council for Health, Working Life and Welfare
Available from: 2017-02-06 Created: 2017-02-02 Last updated: 2020-10-02Bibliographically approved
Hakelius, M., Reyhani, V., Rubin, K., Gerdin, B. & Nowinski, D. (2016). Normal oral keratinocytes and head and neck squamous carcinoma cells induce an innate response in fibroblasts. Anticancer Research, 36(5), 2131-2137
Open this publication in new window or tab >>Normal oral keratinocytes and head and neck squamous carcinoma cells induce an innate response in fibroblasts
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2016 (English)In: Anticancer Research, ISSN 0250-7005, E-ISSN 1791-7530, Vol. 36, no 5, p. 2131-2137Article in journal (Other academic) Published
Abstract [en]

Background: Tumor stroma is similar to the connective tissue of chronic inflammation. The extracellular matrix of tumors is formed by cancer-associated fibroblasts that also modulate the inflammatory response. Materials and Methods: We studied the ability of oral keratinocytes (NOK) and oral squamous cell carcinoma cells (SCC) to induce an innate immune response in fibroblasts. Co-cultures with fibroblasts in collagen gels and keratinocytes in inserts were used. Pentraxin 3 (PTX3) was used as an indicator of an innate immune response. Results: SCC and NOK up-regulated fibroblast mRNA expression and protein release of PTX3. mRNA levels were more pronounced in cultures with malignant cells. The induction of PTX3 was abrogated by an interleukin-1 receptor antagonist Conclusion: Keratinocytes have the capacity to induce an interleukin-1-dependent innate immune response by fibroblasts in vitro. This could be important for subsequent fibroblast modulation of the inflammatory reaction in non-malignant and malignant disease processes.

Keywords
co-culture, pentraxin-3, extracellular matrix, interleukin-1 alpha, tumor stroma
National Category
Surgery Cancer and Oncology
Research subject
Plastic Surgery
Identifiers
urn:nbn:se:uu:diva-221123 (URN)000375456200010 ()27127114 (PubMedID)
Available from: 2014-03-26 Created: 2014-03-25 Last updated: 2017-12-05Bibliographically approved
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