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Mark A. Schmidt, PhD, MPH

TitleSenior Investigator
InstitutionKaiser Permanente Northwest
DepartmentCenter for Health Research
Address3800 N. Interstate Avenue
Portland OR 97227
ORCID ORCID Icon0000-0002-7440-7183 Additional info
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    Collapse Overview 
    Collapse overview
    Dr. Mark Schmidt is an infectious disease epidemiologist with interdisciplinary training in molecular epidemiology and complex system modeling of infectious disease transmission.

    Dr. Schmidt, who has worked in several roles at CHR since 2009, became an assistant investigator in 2015. Before joining CHR, he worked for 10 years in communicable disease epidemiology with state health departments in Oregon and Michigan.

    Dr. Schmidt’s current research is largely focused on studies of medically attended acute gastroenteritis and norovirus infection (MAAGE) and chronically infected hepatitis B and C patients (CHeCS). He has also been expanding his research portfolio to include pilot studies that establish baseline demographic information for sexual and gender minorities.

    Dr. Schmidt received his MPH in hospital and molecular epidemiology and his PhD in epidemiologic science from the University of Michigan.

    Collapse Bibliographic 
    Collapse selected publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
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    PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. Lu M, Rupp LB, Melkonian C, Trudeau S, Daida YG, Schmidt MA, Gordon SC. Correction to: Real-World Safety and Effectiveness of an 8-Week Regimen of Glecaprevir/Pibrentasvir in Patients with Hepatitis?C and Cirrhosis. Adv Ther. 2024 Apr 10. PMID: 38598114.
      Citations:    
    2. Groom HC, Schmidt M, Calderwood LE, Mirza SA, Mattison C, Salas S, Donald J, Naleway AL. Attitudes toward a future norovirus vaccine among members of an integrated healthcare delivery system in Portland, Oregon, 2016-2017. Hum Vaccin Immunother. 2024 Dec 31; 20(1):2317599. PMID: 38416866; PMCID: PMC10903669.
      Citations:    
    3. Weinmann S, Rawlings A, Koppolu P, Rosales AG, Prado YK, Schmidt MA. Herpes zoster diagnosis and treatment in relation to incident dementia: A population-based retrospective matched cohort study. PLoS One. 2024; 19(1):e0296957. PMID: 38271405; PMCID: PMC10810473.
      Citations:    
    4. Tartof SY, Schmidt MA, Contreras R, Angulo FJ, Florea A, Barreras JL, Donald J, Zamparo J, Grant DL, Shuster E, Gonzalez E, Kuntz JL. Burden of Medically Attended Diarrhea and Outpatient Clostridioides difficile Infection Among Persons in 2 Large Integrated Healthcare Settings, 2016-2021. Open Forum Infect Dis. 2024 Jan; 11(1):ofad680. PMID: 38250203; PMCID: PMC10798856.
      Citations:    
    5. Lu M, Rupp LB, Melkonian C, Trudeau S, Daida YG, Schmidt MA, Gordon SC. Real-World Safety and Effectiveness of an 8-Week Regimen of Glecaprevir/Pibrentasvir in Patients with Hepatitis?C and Cirrhosis. Adv Ther. 2024 Feb; 41(2):744-758. PMID: 38169058.
      Citations:    
    6. Tao MH, Gordon S, Wu T, Trudeau S, Rupp LB, Gonzalez HC, Daida YG, Schmidt MA, Lu M. Antiviral Treatment and Response are Associated With Lower Risk of Dementia Among Hepatitis C Virus-Infected Patients. Am J Geriatr Psychiatry. 2023 Dec 21. PMID: 38199936.
      Citations:    
    7. Lu M, Rupp LB, Melkonian C, Trudeau S, Daida YG, Schmidt MA, Gordon SC. Persistent pruritus associated with worse quality of life in patients with chronic hepatitis. Liver Int. 2024 Feb; 44(2):577-588. PMID: 38082499.
      Citations:    
    8. Balachandran N, Mattison CP, Calderwood LE, Burke RM, Schmidt MA, Donald J, Mirza SA. Household Transmission of Viral Acute Gastroenteritis Among Participants Within an Integrated Health Care Delivery System, 2014-2016. Open Forum Infect Dis. 2023 Dec; 10(12):ofad619. PMID: 38156052; PMCID: PMC10753916.
      Citations:    
    9. Hallowell BD, Burke RM, Salas SB, Groom H, Donald JL, Mattison CP, Schmidt MA, Hall AJ. Correlates of healthcare-seeking behavior for acute gastroenteritis-United States, October 1, 2016 -September 30, 2017. PLoS One. 2023; 18(10):e0293739. PMID: 37906587; PMCID: PMC10617691.
      Citations:    
    10. Babu TM, Feldstein LR, Saydah S, Acker Z, Boisvert CL, Briggs-Hagen M, Carone M, Casto A, Cox SN, Ehmen B, Englund JA, Fortmann SP, Frivold CJ, Groom H, Han PD, Kuntz JL, Lockwood T, Midgley CM, Mularski RA, Ogilvie T, Reich SL, Schmidt MA, Smith N, Starita L, Stone J, Vandermeer M, Weil AA, Wolf CR, Chu HY, Naleway AL. CASCADIA: a prospective community-based study protocol for assessing SARS-CoV-2 vaccine effectiveness in children and adults using a remote nasal swab collection and web-based survey design. BMJ Open. 2023 Jul 14; 13(7):e071446. PMID: 37451722; PMCID: PMC10350906.
      Citations:    Fields:    Translation:HumansCells
    11. Lu M, Salgia R, Li J, Trudeau S, Rupp LB, Wu T, Daida YG, Schmidt MA, Gordon SC. Dynamic risk assessment for hepatocellular carcinoma in patients with chronic hepatitis C. J Viral Hepat. 2023 09; 30(9):746-755. PMID: 37415492.
      Citations:    Fields:    
    12. Wong RJ, Rupp L, Lu M, Yang Z, Daida YG, Schmidt M, Boscarino JA, Gordon SC, Chitnis AS. Prevalence of hepatitis B virus (HBV) and latent tuberculosis co-infection and risk of drug-induced liver injury across two large HBV cohorts in the United States. J Viral Hepat. 2023 06; 30(6):512-519. PMID: 36843435.
      Citations:    Fields:    Translation:HumansCells
    13. Selim R, Gordon SC, Zhou Y, Zhang T, Lu M, Daida YG, Boscarino JA, Schmidt MA, Trudeau S, Rupp LB, Gonzalez HC. Impact of hepatitis C treatment status on risk of Parkinson's disease and secondary parkinsonism in the era of direct-acting antivirals. J Viral Hepat. 2023 Mar 05. PMID: 36872452.
      Citations:    Fields:    Translation:HumansCells
    14. Burke RM, Tate JE, Groom H, Parashar UD, Mattison CP, Donald J, Salas SB, Naleway AL, Lee MH, Dickerson JF, Biggs C, Tsaknaridis L, Bowen MD, Schmidt M, Hall AJ. Rotavirus Vaccine Impact Within an Integrated Healthcare Delivery System in the United States. J Pediatric Infect Dis Soc. 2022 Dec 28; 11(12):586-589. PMID: 36070595.
      Citations:    Fields:    
    15. Schmidt MA, Groom HC, Rawlings AM, Mattison CP, Salas SB, Burke RM, Hallowell BD, Calderwood LE, Donald J, Balachandran N, Hall AJ. Incidence, Etiology, and Healthcare Utilization for Acute Gastroenteritis in the Community, United States. Emerg Infect Dis. 2022 11; 28(11):2234-2242. PMID: 36285882; PMCID: PMC9622243.
      Citations:    Fields:    Translation:HumansCells
    16. Schmidt MA, Salas SB, Donald JL, Gift TL, Tao G. Impact of the Early COVID-19 Pandemic on the Number of HIV Pre-Exposure Prophylaxis (PrEP) Uses and the Proportion of PrEP users receiving STI Testing Services. Sex Transm Dis. 2022 Oct 31. PMID: 36730891.
      Citations:    Fields:    Translation:HumansPHPublic Health
    17. Schmidt MA, Dickerson JF, O'Keeffe-Rosetti MC, Salas SB, Donald JL, Tao G. Sexually Transmitted Infection Testing, Prevalence, and Treatment among Individuals Receiving HIV Pre-Exposure Prophylaxis within an Integrated Healthcare Delivery System. Sex Transm Dis. 2022 Jun 17. PMID: 35724111.
      Citations: 1     Fields:    Translation:HumansPHPublic Health
    18. Gordon SC, Teshale EH, Spradling PR, Moorman AC, Boscarino JA, Schmidt MA, Daida YG, Rupp LB, Trudeau S, Zhang J, Lu M, CHeCS Investigators. Lower rates of emergency visits and hospitalizations among chronic hepatitis C patients with sustained virological response to interferon-free direct-acting antiviral therapy (2014-2018). Clin Infect Dis. 2022 Feb 11. PMID: 35147184.
      Citations:    Fields:    Translation:HumansCells
    19. Spradling PR, Xing J, Zhong Y, Rupp LB, Moorman AC, Lu M, Teshale EH, Schmidt MA, Daida YG, Boscarino JA, Gordon SC, Chronic Hepatitis Cohort Study (CHeCS) Investigators. Incidence of malignancies among patients with chronic hepatitis B in US health care organizations, 2006-2018. J Infect Dis. 2022 Jan 17. PMID: 35039863.
      Citations: 1     Fields:    Translation:HumansCells
    20. Zhou Y, Li J, Gordon SC, Trudeau S, Rupp LB, Boscarino JA, Daida YG, Schmidt MA, Lu M. Laboratory monitoring and antiviral treatment for chronic hepatitis B among routine care patients in the United States. J Viral Hepat. 2021 Dec 14. PMID: 34905259.
      Citations:    Fields:    Translation:HumansCells
    21. Li J, Lu M, Zhou Y, Bowlus CL, Lindor K, Rodriguez-Watson C, Romanelli RJ, Haller IV, Anderson H, VanWormer JJ, Boscarino JA, Schmidt MA, Daida YG, Sahota A, Vincent J, Wu KH, Trudeau S, Rupp LB, Melkonian C, Gordon SC, FOLD Investigators. Dynamic Risk Prediction of Response to Ursodeoxycholic Acid Among Patients with Primary Biliary Cholangitis in the USA. Dig Dis Sci. 2021 Sep 09. PMID: 34499271.
      Citations:    Fields:    Translation:Humans
    22. Spradling PR, Zhong Y, Moorman AC, Rupp LB, Lu M, Teshale EH, Schmidt MA, Daida YG, Boscarino JA, Gordon SC, CHeCS Investigators. The Persistence of Underreporting of Hepatitis C as an Underlying or Contributing Cause of Death, 2011-2017. Clin Infect Dis. 2021 09 07; 73(5):891-894. PMID: 33561187.
      Citations: 1     Fields:    Translation:HumansCells
    23. Burke RM, Mattison CP, Marsh Z, Shioda K, Donald J, Salas SB, Naleway AL, Biggs C, Schmidt MA, Hall AJ. Norovirus and Other Viral Causes of Medically Attended Acute Gastroenteritis Across the Age Spectrum: Results from the Medically Attended Acute Gastroenteritis Study in the United States. Clin Infect Dis. 2021 Aug 16; 73(4):e913-e920. PMID: 34398953.
      Citations: 11     Fields:    Translation:HumansCells
    24. Burke RM, Groom HC, Naleway AL, Katz EM, Salas B, Mattison CP, Donald J, Tsaknaridis L, Biggs C, Bowen MD, Tate JE, Parashar UD, Schmidt M, Hall AJ. Rotavirus Vaccine Is Effective Against Rotavirus Gastroenteritis Resulting in Outpatient Care: Results From the Medically Attended Acute Gastroenteritis (MAAGE) Study. Clin Infect Dis. 2021 06 01; 72(11):2000-2005. PMID: 32322882; PMCID: PMC8130003.
      Citations: 1     Fields:    Translation:HumansCellsPHPublic Health
    25. J Gunderson A, Rajamanickam V, Bui C, Bernard B, Pucilowska J, Ballesteros-Merino C, Schmidt M, McCarty K, Philips M, Piening B, Dubay C, Medler T, Newell P, Hansen P, Tran E, Tang E, Bifulco C, Crittenden M, Gough M, Young KH. Germinal center reactions in tertiary lymphoid structures associate with neoantigen burden, humoral immunity and long-term survivorship in pancreatic cancer. Oncoimmunology. 2021 03 17; 10(1):1900635. PMID: 33796412; PMCID: PMC7993148.
      Citations: 30     Fields:    Translation:Humans
    26. Lu M, Li J, Zhou Y, Rupp LB, Moorman AC, Spradling PR, Teshale EH, Boscarino JA, Daida YG, Schmidt MA, Trudeau S, Gordon SC, CHeCS Investigators. Trends in Cirrhosis and Mortality by Age, Sex, Race, and Antiviral Treatment Status Among US Chronic Hepatitis B Patients (2006-2016). J Clin Gastroenterol. 2021 Mar 17. PMID: 33780209.
      Citations:    Fields:    Translation:Humans
    27. Spradling PR, Xing J, Rupp LB, Moorman AC, Gordon SC, Lu M, Teshale EH, Boscarino JA, Schmidt MA, Daida YG, Holmberg SD, Chronic Hepatitis Cohort Study (CHeCS) Investigators. Low Uptake of Direct-acting Antiviral Therapy Among Hepatitis C Patients With Advanced Liver Disease and Access to Care, 2014-2017. J Clin Gastroenterol. 2021 01; 55(1):77-83. PMID: 32250999.
      Citations: 6     Fields:    Translation:HumansCells
    28. Li J, Gordon SC, Zhou Y, Boscarino JA, Schmidt MA, Daida YG, Rupp LB, Trudeau S, Lu M, CHeCS Investigators. Sex Differences in Extrahepatic Outcomes After Antiviral Treatment for Hepatitis C. Am J Gastroenterol. 2020 Dec 24; Publish Ahead of Print. PMID: 33399360.
      Citations: 2     Fields:    Translation:Humans
    29. Spradling PR, Zhong Y, Moorman AC, Rupp LB, Lu M, Gordon SC, Teshale EH, Schmidt MA, Daida YG, Boscarino JA, Chronic Hepatitis Cohort Study (CHeCS) Investigators. Psychosocial Obstacles to Hepatitis C Treatment Initiation Among Patients in Care: A Hitch in the Cascade of Cure. Hepatol Commun. 2021 03; 5(3):400-411. PMID: 33681675; PMCID: PMC7917278.
      Citations: 7     Fields:    Translation:HumansCells
    30. Lu M, Bowlus CL, Lindor K, Rodriguez-Watson CV, Romanelli RJ, Haller IV, Anderson H, VanWormer JJ, Boscarino JA, Schmidt MA, Daida YG, Sahota A, Vincent J, Li J, Trudeau S, Rupp LB, Gordon SC, FOLD Investigators. Validity of an Automated Algorithm to Identify Cirrhosis Using Electronic Health Records in Patients with Primary Biliary Cholangitis. Clin Epidemiol. 2020; 12:1261-1267. PMID: 33204167; PMCID: PMC7666983.
      Citations:    
    31. Lewnard JA, Liu VX, Jackson ML, Schmidt MA, Jewell BL, Flores JP, Jentz C, Northrup GR, Mahmud A, Reingold AL, Petersen M, Jewell NP, Young S, Bellows J. Incidence, clinical outcomes, and transmission dynamics of severe coronavirus disease 2019 in California and Washington: prospective cohort study. BMJ. 2020 May 22; 369:m1923. PMID: 32444358; PMCID: PMC7243800.
      Citations: 90     Fields:    Translation:HumansCellsPHPublic Health
    32. Gordon SC, Wu KH, Lindor K, Bowlus CL, Rodriguez CV, Anderson H, Boscarino JA, Trudeau S, Rupp LB, Haller IV, Romanelli RJ, VanWormer JJ, Schmidt MA, Daida YG, Sahota A, Vincent J, Zhang T, Li J, Lu M, FOLD Investigators. Ursodeoxycholic Acid Treatment Preferentially Improves Overall Survival Among African Americans With Primary Biliary Cholangitis. Am J Gastroenterol. 2020 02; 115(2):262-270. PMID: 31985529.
      Citations: 5     Fields:    Translation:Humans
    33. Daida YG, Boscarino JA, Moorman AC, Lu M, Rupp LB, Gordon SC, Teshale EH, Schmidt MA, Spradling PR, Chronic Hepatitis Cohort Study Investigators. Mental and physical health status among chronic hepatitis B patients. Qual Life Res. 2020 Jun; 29(6):1567-1577. PMID: 31938963; PMCID: PMC8281322.
      Citations: 7     Fields:    Translation:Humans
    34. Moorman AC, Xing J, Rupp LB, Gordon SC, Lu M, Spradling PR, Boscarino JA, Schmidt MA, Daida YG, Teshale EH, CHeCS Investigators. Late diagnosis of hepatitis C virus infection, 2014-2016: continuing missed intervention opportunities. Am J Manag Care. 2019 08; 25(8):369-374. PMID: 31419094.
      Citations:    Fields:    Translation:Humans
    35. Lu M, Wu KH, Li J, Moorman AC, Spradling PR, Teshale EH, Boscarino JA, Daida YG, Schmidt MA, Rupp LB, Zhang T, Trudeau S, Gordon SC. Adjuvant ribavirin and longer direct-acting antiviral treatment duration improve sustained virological response among hepatitis C patients at risk of treatment failure. J Viral Hepat. 2019 10; 26(10):1210-1217. PMID: 31197910; PMCID: PMC6764853.
      Citations: 9     Fields:    Translation:HumansCells
    36. Lu M, Zhou Y, Holmberg SD, Moorman AC, Spradling PR, Teshale EH, Boscarino JA, Daida YG, Schmidt MA, Li J, Rupp LB, Trudeau S, Gordon SC, Chronic Hepatitis Cohort Study Investigators. Trends in Diagnosed Chronic Hepatitis B in a US Health System Population, 2006-2015. Open Forum Infect Dis. 2019 Jul; 6(7):ofz286. PMID: 31341929; PMCID: PMC6641786.
      Citations:    
    37. Bixler D, Zhong Y, Ly KN, Moorman AC, Spradling PR, Teshale EH, Rupp LB, Gordon SC, Boscarino JA, Schmidt MA, Daida YG, Holmberg SD, CHeCS Investigators. Mortality Among Patients With Chronic Hepatitis B Infection: The Chronic Hepatitis Cohort Study (CHeCS). Clin Infect Dis. 2019 03 05; 68(6):956-963. PMID: 30060032.
      Citations: 14     Fields:    Translation:HumansCellsPHPublic Health
    38. Li J, Gordon SC, Rupp LB, Zhang T, Trudeau S, Holmberg SD, Moorman AC, Spradling PR, Teshale EH, Boscarino JA, Schmidt MA, Daida YG, Lu M, CHeCS Investigators. Sustained virological response does not improve long-term glycaemic control in patients with type 2 diabetes and chronic hepatitis C. Liver Int. 2019 06; 39(6):1027-1032. PMID: 30570808; PMCID: PMC6628708.
      Citations: 11     Fields:    Translation:HumansCells
    39. Li J, Gordon SC, Rupp LB, Zhang T, Trudeau S, Holmberg SD, Moorman AC, Spradling PR, Teshale EH, Boscarino JA, Schmidt MA, Daida YG, Lu M, CHeCS Investigators. Sustained virological response to hepatitis C treatment decreases the incidence of complications associated with type 2 diabetes. Aliment Pharmacol Ther. 2019 03; 49(5):599-608. PMID: 30650468; PMCID: PMC6599612.
      Citations: 13     Fields:    Translation:HumansCells
    40. Schmidt MA, Groom HC, Naleway AL, Biggs C, Salas SB, Shioda K, Marsh Z, Donald JL, Hall AJ. A model for rapid, active surveillance for medically-attended acute gastroenteritis within an integrated health care delivery system. PLoS One. 2018; 13(8):e0201805. PMID: 30075030.
      Citations: 4     Fields:    Translation:Humans
    41. Moorman AC, Rupp LB, Gordon SC, Zhong Y, Xing J, Lu M, Boscarino JA, Schmidt MA, Daida YG, Teshale EH, Spradling PR, Holmberg SD, CHeCS Investigators. Long-Term Liver Disease, Treatment, and Mortality Outcomes Among 17,000 Persons Diagnosed with Chronic Hepatitis C Virus Infection: Current Chronic Hepatitis Cohort Study Status and Review of Findings. Infect Dis Clin North Am. 2018 06; 32(2):253-268. PMID: 29778254; PMCID: PMC6211170.
      Citations: 9     Fields:    Translation:HumansCells
    42. Briere EC, Pondo T, Schmidt M, Skoff T, Shang N, Naleway A, Martin S, Jackson ML. Assessment of Tdap Vaccination Effectiveness in Adolescents in Integrated Health-Care Systems. J Adolesc Health. 2018 06; 62(6):661-666. PMID: 29551624.
      Citations: 1     Fields:    Translation:HumansPHPublic Health
    43. Moorman AC, Xing J, Rupp LB, Gordon SC, Spradling PR, Boscarino JA, Schmidt MA, Daida YG, Teshale EH, Holmberg SD, Chronic Hepatitis Cohort Study Investigators. Hepatitis B Virus Infection and Hepatitis C Virus Treatment in a Large Cohort of Hepatitis C-Infected Patients in the United States. Gastroenterology. 2018 02; 154(3):754-758. PMID: 29360428; PMCID: PMC5850951.
      Citations: 3     Fields:    Translation:HumansCells
    44. Lu M, Zhou Y, Haller IV, Romanelli RJ, VanWormer JJ, Rodriguez CV, Anderson H, Boscarino JA, Schmidt MA, Daida YG, Sahota A, Vincent J, Bowlus CL, Lindor K, Zhang T, Trudeau S, Li J, Rupp LB, Gordon SC. Increasing Prevalence of Primary Biliary Cholangitis and Reduced Mortality With Treatment. Clin Gastroenterol Hepatol. 2018 Aug; 16(8):1342-1350.e1. PMID: 29277621.
      Citations: 32     Fields:    Translation:Humans
    45. Lu M, Li J, Haller IV, Romanelli RJ, VanWormer JJ, Rodriguez CV, Raebel MA, Boscarino JA, Schmidt MA, Daida YG, Sahota A, Vincent J, Bowlus CL, Lindor K, Rupp LB, Gordon SC. Factors Associated With Prevalence and Treatment of Primary Biliary Cholangitis in United States Health Systems. Clin Gastroenterol Hepatol. 2018 Aug; 16(8):1333-1341.e6. PMID: 29066370.
      Citations: 16     Fields:    Translation:Humans
    46. Xing J, Spradling PR, Moorman AC, Holmberg SD, Teshale EH, Rupp LB, Gordon SC, Lu M, Boscarino JA, Schmidt MA, Trinacty CM, Xu F. A Point System to Forecast Hepatocellular Carcinoma Risk Before and After Treatment Among Persons with Chronic Hepatitis C. Dig Dis Sci. 2017 11; 62(11):3221-3234. PMID: 28965221.
      Citations: 2     Fields:    Translation:HumansCells
    47. Boscarino JA, Moorman AC, Rupp LB, Zhou Y, Lu M, Teshale EH, Gordon SC, Spradling PR, Schmidt MA, Trinacty CM, Zhong Y, Holmberg SD, Holtzman D. Comparison of ICD-9 Codes for Depression and Alcohol Misuse to Survey Instruments Suggests These Codes Should Be Used with Caution. Dig Dis Sci. 2017 10; 62(10):2704-2712. PMID: 28879547.
      Citations: 13     Fields:    Translation:Humans
    48. Lu M, Li J, Rupp LB, Zhou Y, Holmberg SD, Moorman AC, Spradling PR, Teshale EH, Boscarino JA, Daida YG, Schmidt MA, Trudeau S, Gordon SC. Changing trends in complications of chronic hepatitis C. Liver Int. 2018 02; 38(2):239-247. PMID: 28636782; PMCID: PMC5777910.
      Citations: 3     Fields:    Translation:Humans
    49. Gordon SC, Trudeau S, Li J, Zhou Y, Rupp LB, Holmberg SD, Moorman AC, Spradling PR, Teshale E, Boscarino JA, Daida YG, Schmidt MA, Lu M. Race, Age, and Geography Impact Hepatitis C Genotype Distribution in the United States. J Clin Gastroenterol. 2017 Jul 21. PMID: 28737649.
      Citations: 8     Fields:    Translation:HumansCells
    50. Abara WE, Moorman AC, Zhong Y, Collier MG, Rupp LB, Gordon SC, Boscarino JA, Schmidt MA, Trinacty CM, Holmberg SD, CHeCS Investigators. The Predictive Value of International Classification of Disease Codes for Chronic Hepatitis C Virus Infection Surveillance: The Utility and Limitations of Electronic Health Records. Popul Health Manag. 2018 Apr; 21(2):110-115. PMID: 37575638; PMCID: PMC10421598.
      Citations:    
    51. Spradling PR, Xing J, Rupp LB, Moorman AC, Gordon SC, Lu M, Teshale EH, Boscarino JA, Schmidt MA, Daida YG, Holmberg SD. Uptake of and Factors Associated With Direct-acting Antiviral Therapy Among Patients in the Chronic Hepatitis Cohort Study, 2014 to 2015. J Clin Gastroenterol. 2017 Jun 05. PMID: 28590325.
      Citations: 24     Fields:    Translation:HumansCells
    52. Li J, Gordon SC, Rupp LB, Zhang T, Trudeau S, Holmberg SD, Moorman AC, Spradling PR, Teshale EH, Boscarino JA, Daida YG, Schmidt MA, Lu M, CHeCS Investigators. Long-term progression of viral load and serum markers of fibrosis among treated and untreated patients with chronic hepatitis B. J Gastroenterol Hepatol. 2017 Jun; 32(6):1250-1257. PMID: 27888529; PMCID: PMC5674987.
      Citations: 3     Fields:    Translation:Humans
    53. Foster MA, Xing J, Moorman AC, Boscarino J, Gordon SC, Lu M, Rupp L, Schmidt MA, Trinacty CM, Xu F, Holmberg SD, Spradling PR. Frequency of and Factors Associated with Receipt of Liver-Related Specialty Care Among Patients with Hepatitis C in the Chronic Hepatitis Cohort Study. Dig Dis Sci. 2016 12; 61(12):3469-3477. PMID: 27510752.
      Citations: 2     Fields:    Translation:Humans
    54. Spradling PR, Xing J, Rupp LB, Moorman AC, Gordon SC, Teshale ET, Lu M, Boscarino JA, Trinacty CM, Schmidt MA, Holmberg SD. Infrequent Clinical Assessment of Chronic Hepatitis B Patients in United States General Healthcare Settings. Clin Infect Dis. 2016 11 01; 63(9):1205-1208. PMID: 27486115.
      Citations: 17     Fields:    Translation:Humans
    55. Moorman AC, Tong X, Spradling PR, Rupp LB, Gordon SC, Lu M, Teshale EH, Boscarino JA, Trinacty CM, Schmidt MA, Xu F, Holmberg SD. Prevalence of Renal Impairment and Associated Conditions Among HCV-Infected Persons in the Chronic Hepatitis Cohort Study (CHeCS). Dig Dis Sci. 2016 07; 61(7):2087-93. PMID: 27216163.
      Citations: 8     Fields:    Translation:Humans
    56. Grytdal SP, DeBess E, Lee LE, Blythe D, Ryan P, Biggs C, Cameron M, Schmidt M, Parashar UD, Hall AJ. Incidence of Norovirus and Other Viral Pathogens That Cause Acute Gastroenteritis (AGE) among Kaiser Permanente Member Populations in the United States, 2012-2013. PLoS One. 2016; 11(4):e0148395. PMID: 27115485; PMCID: PMC4846013.
      Citations: 31     Fields:    Translation:HumansCells
    57. Lu M, Li J, Rupp LB, Holmberg SD, Moorman AC, Spradling PR, Teshale EH, Zhou Y, Boscarino JA, Schmidt MA, Lamerato LE, Trinacty C, Trudeau S, Gordon SC. Hepatitis C treatment failure is associated with increased risk of hepatocellular carcinoma. J Viral Hepat. 2016 09; 23(9):718-29. PMID: 27028626.
      Citations: 17     Fields:    Translation:Humans
    58. Lu M, Li J, Zhang T, Rupp LB, Trudeau S, Holmberg SD, Moorman AC, Spradling PR, Teshale EH, Xu F, Boscarino JA, Schmidt MA, Vijayadeva V, Gordon SC, Chronic Hepatitis Cohort Study Investigators. Serum Biomarkers Indicate Long-term Reduction in Liver Fibrosis in Patients With Sustained Virological Response to Treatment for HCV Infection. Clin Gastroenterol Hepatol. 2016 07; 14(7):1044-1055.e3. PMID: 26804385; PMCID: PMC5726250.
      Citations: 19     Fields:    Translation:Humans
    59. Xu F, Moorman AC, Tong X, Gordon SC, Rupp LB, Lu M, Teshale EH, Spradling PR, Boscarino JA, Trinacty CM, Schmidt MA, Holmberg SD, Holmberg SD, Teshale EH, Spradling PR, Moorman AC, Xing J, Tong X, Xu F, Gordon SC, Nerenz DR, Lu M, Lamerato L, Wang Y, Rupp LB, Akkerman N, Oja-Tebbe N, Zhang T, Li J, Sitarik A, Larkin D, Boscarino JA, Daar ZS, Curry PJ, Smith RE, Vijayadeva V, Parker JV, Schmidt MA, Donald JL, Keast EM. All-Cause Mortality and Progression Risks to Hepatic Decompensation and Hepatocellular Carcinoma in Patients Infected With Hepatitis C Virus. Clin Infect Dis. 2016 Feb 01; 62(3):289-297. PMID: 26417034.
      Citations: 28     Fields:    Translation:Humans
    60. Gordon SC, Lamerato LE, Rupp LB, Holmberg SD, Moorman AC, Spradling PR, Teshale E, Xu F, Boscarino JA, Vijayadeva V, Schmidt MA, Oja-Tebbe N, Lu M. Prevalence of cirrhosis in hepatitis C patients in the Chronic Hepatitis Cohort Study (CHeCS): a retrospective and prospective observational study. Am J Gastroenterol. 2015 Aug; 110(8):1169-77; quiz 1178. PMID: 26215529; PMCID: PMC5731242.
      Citations: 17     Fields:    Translation:HumansCells
    61. Moorman AC, Xing J, Ko S, Rupp LB, Xu F, Gordon SC, Lu M, Spradling PR, Teshale EH, Boscarino JA, Vijayadeva V, Schmidt MA, Holmberg SD. Late diagnosis of hepatitis C virus infection in the Chronic Hepatitis Cohort Study (CHeCS): Missed opportunities for intervention. Hepatology. 2015 May; 61(5):1479-84. PMID: 25131217.
      Citations: 21     Fields:    Translation:Humans
    62. Boscarino JA, Lu M, Moorman AC, Gordon SC, Rupp LB, Spradling PR, Teshale EH, Schmidt MA, Vijayadeva V, Holmberg SD. Predictors of poor mental and physical health status among patients with chronic hepatitis C infection: the Chronic Hepatitis Cohort Study (CHeCS). Hepatology. 2015 Mar; 61(3):802-11. PMID: 25203533.
      Citations: 31     Fields:    Translation:Humans
    63. Schmidt MA, Kurosky SK, Mullooly JP, Chun C, Weinmann S. A Ten-Year Case-Control Study of Passive Smoke Exposure as a Risk Factor for Pertussis in Children. Perm J. 2015; 19(3):59-63. PMID: 26176570.
      Citations: 1     Fields:    Translation:HumansPHPublic Health
    64. Henkle E, Lu M, Rupp LB, Boscarino JA, Vijayadeva V, Schmidt MA, Gordon SC. Hepatitis A and B immunity and vaccination in chronic hepatitis B and C patients in a large United States cohort. Clin Infect Dis. 2015 Feb 15; 60(4):514-22. PMID: 25371489.
      Citations: 5     Fields:    Translation:HumansPHPublic Health
    65. Boscarino JA, Sitarik A, Gordon SC, Rupp LB, Nerenz DR, Vijayadeva V, Schmidt MA, Henkle E, Lu M. Risk factors for hepatitis C infection among Vietnam era veterans versus nonveterans: results from the Chronic Hepatitis Cohort Study (CHeCS). J Community Health. 2014 Oct; 39(5):914-21. PMID: 24682941.
      Citations: 7     Fields:    Translation:Humans
    66. Teshale E, Lu M, Rupp LB, Holmberg SD, Moorman AC, Spradling P, Vijayadeva V, Boscarino JA, Schmidt MA, Gordon SC. APRI and FIB-4 are good predictors of the stage of liver fibrosis in chronic hepatitis B: the Chronic Hepatitis Cohort Study (CHeCS). J Viral Hepat. 2014 Dec; 21(12):917-20. PMID: 25131445.
      Citations: 36     Fields:    Translation:Humans
    67. Lu M, Rupp LB, Moorman AC, Li J, Zhang T, Lamerato LE, Holmberg SD, Spradling PR, Teshale EH, Vijayadeva V, Boscarino JA, Schmidt MA, Nerenz DR, Gordon SC. Comparative effectiveness research of chronic hepatitis B and C cohort study (CHeCS): improving data collection and cohort identification. Dig Dis Sci. 2014 Dec; 59(12):3053-61. PMID: 25030940.
      Citations: 5     Fields:    Translation:Humans
    68. Spradling PR, Tong X, Rupp LB, Moorman AC, Lu M, Teshale EH, Gordon SC, Vijayadeva V, Boscarino JA, Schmidt MA, Holmberg SD. Trends in HCV RNA testing among HCV antibody-positive persons in care, 2003-2010. Clin Infect Dis. 2014 Oct; 59(7):976-81. PMID: 24991025.
      Citations: 16     Fields:    Translation:Humans
    69. Li J, Gordon SC, Rupp LB, Zhang T, Boscarino JA, Vijayadeva V, Schmidt MA, Lu M. The validity of serum markers for fibrosis staging in chronic hepatitis B and C. J Viral Hepat. 2014 Dec; 21(12):930-7. PMID: 24472062.
      Citations: 51     Fields:    Translation:Humans
    70. Schmidt MA, Gold R, Kurosky SK, Daley MF, Irving SA, Gee J, Naleway AL. Uptake, coverage, and completion of quadrivalent human papillomavirus vaccine in the vaccine safety Datalink, July 2006-June 2011. J Adolesc Health. 2013 Nov; 53(5):637-41. PMID: 24138765.
      Citations: 9     Fields:    Translation:Humans
    71. Schmidt MA, Crane B, Mullooly JP, Naleway AL. Frequency of medically attended events following rapid revaccination with trivalent inactivated influenza vaccine. Vaccine. 2010 Nov 16; 28(49):7713-5. PMID: 20875495.
      Citations: 1     Fields:    Translation:Humans
    72. Cohn AC, MacNeil JR, Harrison LH, Hatcher C, Theodore J, Schmidt M, Pondo T, Arnold KE, Baumbach J, Bennett N, Craig AS, Farley M, Gershman K, Petit S, Lynfield R, Reingold A, Schaffner W, Shutt KA, Zell ER, Mayer LW, Clark T, Stephens D, Messonnier NE. Changes in Neisseria meningitidis disease epidemiology in the United States, 1998-2007: implications for prevention of meningococcal disease. Clin Infect Dis. 2010 Jan 15; 50(2):184-91. PMID: 20001736.
      Citations: 129     Fields:    Translation:Humans
    73. Lewis PF, Schmidt MA, Lu X, Erdman DD, Campbell M, Thomas A, Cieslak PR, Grenz LD, Tsaknardis L, Gleaves C, Kendall B, Gilbert D. A community-based outbreak of severe respiratory illness caused by human adenovirus serotype 14. J Infect Dis. 2009 May 15; 199(10):1427-34. PMID: 19351259.
      Citations: 70     Fields:    Translation:HumansCells
    74. Schmidt MA, Mokotoff ED. HIV/AIDS surveillance and prevention: improving the characterization of HIV transmission. Public Health Rep. 2003 May-Jun; 118(3):197-204. PMID: 12766214; PMCID: PMC1497541.
      Citations: 7     Fields:    Translation:HumansPHPublic Health
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