Katherine L. Imborek
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Katherine L. Imborek has a total of 69 co-authors. Here are the top co-authors by number of shared publications:
- Matthew D. Krasowski
Department of Pathology, University of Iowa Hospitals and Clinics , Iowa City, IA
7 shared publications - Nicole L. Nisly
University of Iowa
4 shared publications - Robert M. Humble
Department of Pathology, University of Michigan Medical School , Ann Arbor, MI
3 shared publications - Alejandro A. Pezzulo
University of Iowa
2 shared publications - Alexandra Trannel
University of Iowa Hospitals & Clinics, Iowa City, Iowa, United States
2 shared publications - Alexandre Rodrigues Marra
Hospital Israelita Albert Einstein
2 shared publications
Latest Publications
- Open Access
- 30 July 2026
- Published by The University of Iowa
Collaborative Care in Affirming Primary Care: Comparable Depression and Anxiety Outcomes Across Gender Identities
Transgender and gender nonbinary (TGNB) individuals experience disproportionately high rates of depression and anxiety, often driven by minority stress, stigma, and barriers to accessing affirming behavioral health care. The Collaborative Care Model (CoCM), which integrates behavioral health services into primary care, has demonstrated effectiveness in general populations but has been minimally examined among TGNB patients. This study examined whether participation in CoCM was associated with within-person changes in depression and anxiety symptoms and whether symptom change differed by gender identity. A retrospective chart review was conducted for 33 adults (15 cisgender and 18 TGNB) who completed CoCM treatment in an affirming primary care setting. Results indicated statistically significant reductions in depression and anxiety symptoms from pre- to post-treatment. Importantly, symptom improvement did not differ by gender identity, indicating comparable clinical benefit for cisgender and TGNB patients. These findings suggest that, when delivered within affirming primary care environments, CoCM may support equitable mental health symptom improvement across gender identities.
- 30 July 2026
- Published by The University of Iowa
Open AccessCollaborative Care in Affirming Primary Care: Comparable Depression and Anxiety Outcomes Across Gender Identities
Transgender and gender nonbinary (TGNB) individuals experience disproportionately high rates of depression and anxiety, often driven by minority stress, stigma, and barriers to accessing affirming behavioral health care. The Collaborative Care Model (CoCM), which integrates behavioral health services into primary care, has demonstrated effectiveness in general populations but has been minimally examined among TGNB patients. This study examined whether participation in CoCM was associated with within-person changes in depression and anxiety symptoms and whether symptom change differed by gender identity. A retrospective chart review was conducted for 33 adults (15 cisgender and 18 TGNB) who completed CoCM treatment in an affirming primary care setting. Results indicated statistically significant reductions in depression and anxiety symptoms from pre- to post-treatment. Importantly, symptom improvement did not differ by gender identity, indicating comparable clinical benefit for cisgender and TGNB patients. These findings suggest that, when delivered within affirming primary care environments, CoCM may support equitable mental health symptom improvement across gender identities.
- Open Access
- 29 July 2021
- Published by Cambridge University Press (CUP) in Antimicrobial Stewardship & Healthcare Epidemiology
- Vol. 1 (S1) , s19
Suspected COVID-19 Reinfections at a Tertiary Care Center, Iowa 2020
Background: Coronavirus disease 2019 (COVID-19) is caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). SARS-CoV-2 RNA can be detected by real-time reverse-transcription polymerase chain reaction (RT-PCR) for several weeks after infection. Discerning persistent RT-PCR positivity versus reinfection is challenging and the frequency of COVID-19 reinfections is unknown. We aimed to determine the frequency of clinically suspected reinfection in our center and confirm reinfection using viral whole-genome sequencing (WGS). Methods: The University of Iowa Hospitals and Clinics (UIHC) is an 811-bed academic medical center. Patients with respiratory complaints undergo COVID-19 RT-PCR using nasopharyngeal swabs. The RT-PCR (TaqPath COVID-19 Combo kit) uses 3 targets (ORF1ab, S gene, and N gene). We identified patients with previous laboratory-confirmed COVID-19 who sought care for new respiratory complaints and underwent a repeated SARS-CoV-2 test at least 45 days from their first positive test. We then identified patients with median RT-PCR cycle threshold (Ct) values. Results: During the study period, 13,603 patients had a SARS-CoV-2– positive RT-PCR. Of these, 296 (2.2%) had a clinical visit for new onset of symptoms and a repeated RT-PCR assay >45 days from the first test. Moreover, 29 patients (9.8%) had a positive RT-PCR assay in the repeated testing. Ct values were available for samples from 25 patients; 7 (28%) had Ct values. Conclusions: In patients with a recent history of COVID-19 infection, repeated testing for respiratory symptoms was infrequent. Some had a SARS-CoV-2–positive RT-PCR assay on repeated testing, but only 1 in 4 had Ct values suggestive of a reinfection. We confirmed 1 case of reinfection using WGS. Funding: No Disclosures: None
- 29 July 2021
- Published by Cambridge University Press (CUP) in Antimicrobial Stewardship & Healthcare Epidemiology
- Vol. 1 (S1) , s19
Open AccessSuspected COVID-19 Reinfections at a Tertiary Care Center, Iowa 2020
Background: Coronavirus disease 2019 (COVID-19) is caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). SARS-CoV-2 RNA can be detected by real-time reverse-transcription polymerase chain reaction (RT-PCR) for several weeks after infection. Discerning persistent RT-PCR positivity versus reinfection is challenging and the frequency of COVID-19 reinfections is unknown. We aimed to determine the frequency of clinically suspected reinfection in our center and confirm reinfection using viral whole-genome sequencing (WGS). Methods: The University of Iowa Hospitals and Clinics (UIHC) is an 811-bed academic medical center. Patients with respiratory complaints undergo COVID-19 RT-PCR using nasopharyngeal swabs. The RT-PCR (TaqPath COVID-19 Combo kit) uses 3 targets (ORF1ab, S gene, and N gene). We identified patients with previous laboratory-confirmed COVID-19 who sought care for new respiratory complaints and underwent a repeated SARS-CoV-2 test at least 45 days from their first positive test. We then identified patients with median RT-PCR cycle threshold (Ct) values. Results: During the study period, 13,603 patients had a SARS-CoV-2– positive RT-PCR. Of these, 296 (2.2%) had a clinical visit for new onset of symptoms and a repeated RT-PCR assay >45 days from the first test. Moreover, 29 patients (9.8%) had a positive RT-PCR assay in the repeated testing. Ct values were available for samples from 25 patients; 7 (28%) had Ct values. Conclusions: In patients with a recent history of COVID-19 infection, repeated testing for respiratory symptoms was infrequent. Some had a SARS-CoV-2–positive RT-PCR assay on repeated testing, but only 1 in 4 had Ct values suggestive of a reinfection. We confirmed 1 case of reinfection using WGS. Funding: No Disclosures: None
- Open Access
- 14 April 2021
- Published by Oxford University Press (OUP) in Open Forum Infectious Diseases
- Vol. 8 (7) , ofab188
Suspected COVID-19 Reinfections at a Tertiary Care Center, Iowa, 2020
Takaaki Kobayashi, Miguel E Ortiz, Katherine L Imborek, Mohammed Alsuhaibani, Stephanie A Holley, Alexandra Trannel, Alexandre R Marra, William Etienne, Kyle E
- 14 April 2021
- Published by Oxford University Press (OUP) in Open Forum Infectious Diseases
- Vol. 8 (7) , ofab188
Open AccessSuspected COVID-19 Reinfections at a Tertiary Care Center, Iowa, 2020
Takaaki Kobayashi, Miguel E Ortiz, Katherine L Imborek, Mohammed Alsuhaibani, Stephanie A Holley, Alexandra Trannel, Alexandre R Marra, William Etienne, Kyle E
- Open Access
- 1 January 2021
- Published by Elsevier in Academic Pathology
- Vol. 8
Experience With Pretravel Testing for SARS-CoV-2 at an Academic Medical Center
- 1 January 2021
- Published by Elsevier in Academic Pathology
- Vol. 8
Open AccessExperience With Pretravel Testing for SARS-CoV-2 at an Academic Medical Center
- 1 May 2019
- Published by Elsevier in Clinica Chimica Acta
- Vol. 492, 84-90
Hematology reference intervals for transgender adults on stable hormone therapy
- 1 May 2019
- Published by Elsevier in Clinica Chimica Acta
- Vol. 492, 84-90
Hematology reference intervals for transgender adults on stable hormone therapy
- 1 March 2019
- Published by Oxford University Press (OUP) in The Journal of Applied Laboratory Medicine
- Vol. 3 (5) , 799-814
Common Hormone Therapies Used to Care for Transgender Patients Influence Laboratory Results
Background: Many laboratory tests are reported and interpreted with sex-specific reference intervals. However, transgender individuals receiving masculinizing or feminizing hormone therapy experience physiological changes predisposing some laboratory tests to shift outside of existing reference intervals. In this study, we review laboratory testing of a large cohort of transgender individuals who were prescribed hormone therapy for at least 6 months at an academic medical center. Methods: Transgender patients were identified using a search function within the electronic health record with gender identity status verified by chart review. Patients were grouped based on type of hormone therapy administered. All laboratory studies were ordered for medical purposes as part of clinical care; as a result, the exact laboratory tests differed among the patients. Some of the patients had sufficient data for both 6- and 12-month comparisons with baseline laboratory values. Results: Statistically significant changes were observed at 6- and 12-month comparisons in basic chemistry, endocrine, and hematologic parameters for transgender individuals receiving masculinizing or feminizing hormones. Chart review demonstrated variation in route of administration of hormone therapy and frequency of gender-affirming surgery within the study population. Conclusions: Transgender individuals receiving hormone therapy experienced significant changes in components of basic chemistry, endocrine, and hematologic parameters following administration of hormone therapy. Variability in hormone dosing and route of administration for gender-affirming treatment warrants further investigation.
- 1 March 2019
- Published by Oxford University Press (OUP) in The Journal of Applied Laboratory Medicine
- Vol. 3 (5) , 799-814
Common Hormone Therapies Used to Care for Transgender Patients Influence Laboratory Results
Background: Many laboratory tests are reported and interpreted with sex-specific reference intervals. However, transgender individuals receiving masculinizing or feminizing hormone therapy experience physiological changes predisposing some laboratory tests to shift outside of existing reference intervals. In this study, we review laboratory testing of a large cohort of transgender individuals who were prescribed hormone therapy for at least 6 months at an academic medical center. Methods: Transgender patients were identified using a search function within the electronic health record with gender identity status verified by chart review. Patients were grouped based on type of hormone therapy administered. All laboratory studies were ordered for medical purposes as part of clinical care; as a result, the exact laboratory tests differed among the patients. Some of the patients had sufficient data for both 6- and 12-month comparisons with baseline laboratory values. Results: Statistically significant changes were observed at 6- and 12-month comparisons in basic chemistry, endocrine, and hematologic parameters for transgender individuals receiving masculinizing or feminizing hormones. Chart review demonstrated variation in route of administration of hormone therapy and frequency of gender-affirming surgery within the study population. Conclusions: Transgender individuals receiving hormone therapy experienced significant changes in components of basic chemistry, endocrine, and hematologic parameters following administration of hormone therapy. Variability in hormone dosing and route of administration for gender-affirming treatment warrants further investigation.
- 1 December 2018
- Published by Wolters Kluwer Health in Clinical Obstetrics & Gynecology
- Vol. 61 (4) , 674-686
Unique Primary Care Needs of Transgender and Gender Non-Binary People
It is important for the practicing primary care provider to become familiar with the unique health care needs for people who identify as transgender men, transgender women, and non-binary people, who are all within the scope of practice of a general obstetrician-gynecologist and other primary care providers. A review of the unique health needs and essential terminology is presented. This knowledge is a basic foundation to develop a welcoming and inclusive practice for people who are gender nonconforming. This fund of knowledge is essential the practicing primary care providers and support staff.
- 1 December 2018
- Published by Wolters Kluwer Health in Clinical Obstetrics & Gynecology
- Vol. 61 (4) , 674-686
Unique Primary Care Needs of Transgender and Gender Non-Binary People
It is important for the practicing primary care provider to become familiar with the unique health care needs for people who identify as transgender men, transgender women, and non-binary people, who are all within the scope of practice of a general obstetrician-gynecologist and other primary care providers. A review of the unique health needs and essential terminology is presented. This knowledge is a basic foundation to develop a welcoming and inclusive practice for people who are gender nonconforming. This fund of knowledge is essential the practicing primary care providers and support staff.
- 1 December 2018
- Published by Wolters Kluwer Health in Clinical Obstetrics and Gynecology
- Vol. 61 (4) , 646-662
Developing an Inclusive and Welcoming LGBTQ Clinic
People who identify as lesbian, gay, bisexual, transgender, queer, and questioning (LGBTQ) are underserved and face barriers to knowledgeable health care. Most health systems are ill prepared to provide care that addresses the needs of the LGBTQ community. Basic steps to developing an LGBTQ welcoming health care program are presented. It can be adapted to diverse health care models, from obstetrics and gynecology and other primary care services whether public or private and to hospitals and specialty clinics. This LGBTQ inclusive health care model was developed in collaboration with the LGBTQ community, a multidisciplinary team of health care providers, and professionals of Law and Information Technology.
- 1 December 2018
- Published by Wolters Kluwer Health in Clinical Obstetrics and Gynecology
- Vol. 61 (4) , 646-662
Developing an Inclusive and Welcoming LGBTQ Clinic
People who identify as lesbian, gay, bisexual, transgender, queer, and questioning (LGBTQ) are underserved and face barriers to knowledgeable health care. Most health systems are ill prepared to provide care that addresses the needs of the LGBTQ community. Basic steps to developing an LGBTQ welcoming health care program are presented. It can be adapted to diverse health care models, from obstetrics and gynecology and other primary care services whether public or private and to hospitals and specialty clinics. This LGBTQ inclusive health care model was developed in collaboration with the LGBTQ community, a multidisciplinary team of health care providers, and professionals of Law and Information Technology.
- 1 December 2018
- Published by Wolters Kluwer Health in Clinical Obstetrics and Gynecology
- Vol. 61 (4) , 663-673
Clinical Care of Lesbian and Bisexual Women for the Obstetrician Gynecologist
Sexual minority women are more likely to delay care, less likely to have a usual place of care, and more likely to exhibit higher risk behaviors such as smoking, obesity, heavy drinking resulting in a disproportionate number of chronic conditions. It is imperative for obstetrician-gynecologists to be at the forefront of providing comprehensive health care to all women, no matter their sexual orientation. This article seeks to discuss health care disparities as well as health behaviors and outcomes in this population. In addition, it will review the appropriate recommendations for clinical care of sexual minority women for the obstetrician/gynecologist.
- 1 December 2018
- Published by Wolters Kluwer Health in Clinical Obstetrics and Gynecology
- Vol. 61 (4) , 663-673
Clinical Care of Lesbian and Bisexual Women for the Obstetrician Gynecologist
Sexual minority women are more likely to delay care, less likely to have a usual place of care, and more likely to exhibit higher risk behaviors such as smoking, obesity, heavy drinking resulting in a disproportionate number of chronic conditions. It is imperative for obstetrician-gynecologists to be at the forefront of providing comprehensive health care to all women, no matter their sexual orientation. This article seeks to discuss health care disparities as well as health behaviors and outcomes in this population. In addition, it will review the appropriate recommendations for clinical care of sexual minority women for the obstetrician/gynecologist.
- 1 September 2017
- Published by Georg Thieme Verlag KG in Seminars in Reproductive Medicine
- Vol. 35 (05) , 426-433
Preventive Health for Transgender Men and Women
Transgender men and women experience an incongruity between their assigned sex at birth and their identified gender. Gender dysphoria is defined by the Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM-5) as clinically significant distress or impairment resulting from misalignment in assigned and experienced gender. Transgender people have a history of negative experiences in health care and efforts should be made to create a welcoming environment through staff training, gender neutral restrooms, and gender inclusive electronic medical record systems. Transgender men and women face unique preventive health concerns in areas of metabolic screening, cancer screening, immunizations, and anticipatory guidance secondary to cross-sex hormone therapy, gender confirming surgical procedures, and certain high-risk behaviors. Here, the available data are reviewed and suggested best practices are outlined to optimize the preventive health for this patient population.
- 1 September 2017
- Published by Georg Thieme Verlag KG in Seminars in Reproductive Medicine
- Vol. 35 (05) , 426-433
Preventive Health for Transgender Men and Women
Transgender men and women experience an incongruity between their assigned sex at birth and their identified gender. Gender dysphoria is defined by the Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM-5) as clinically significant distress or impairment resulting from misalignment in assigned and experienced gender. Transgender people have a history of negative experiences in health care and efforts should be made to create a welcoming environment through staff training, gender neutral restrooms, and gender inclusive electronic medical record systems. Transgender men and women face unique preventive health concerns in areas of metabolic screening, cancer screening, immunizations, and anticipatory guidance secondary to cross-sex hormone therapy, gender confirming surgical procedures, and certain high-risk behaviors. Here, the available data are reviewed and suggested best practices are outlined to optimize the preventive health for this patient population.