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Matthew T. Mefford, PhD

TitleResearch Scientist I
InstitutionKaiser Permanente Southern California
DepartmentDepartment of Research and Evaluation
Address100 South Los Robles Avenue
Pasadena CA 91101
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    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. Mefford MT, Ambrosy AP, Wei R, Zheng C, Parikh RV, Harrison TN, Lee MS, Go AS, Reynolds K. Rule-based natural language processing to examine variation in worsening heart failure hospitalizations by age, sex, race and ethnicity, and left ventricular ejection fraction. Am Heart J. 2024 Dec; 278:117-126. PMID: 39251103.
      Citations:    Fields:    Translation:Humans
    2. Choi E, Mizuno H, Wang Z, Fang C, Mefford MT, Reynolds K, Ghazi L, Shimbo D, Muntner P. Antihypertensive medication persistence and adherence among non-Hispanic Asian US patients with hypertension and fee-for-service Medicare health insurance. PLoS One. 2024; 19(3):e0300372. PMID: 38507422; PMCID: PMC10954118.
      Citations: 1     Fields:    Translation:Humans
    3. Rivera AS, Pak K, Mefford MT, Hechter RC. Changes in Glomerular Filtration Rate After Switching From Tenofovir Disoproxil Fumarate to Tenofovir Alafenamide Fumarate for Human Immunodeficiency Virus Preexposure Prophylaxis. Open Forum Infect Dis. 2024 Feb; 11(2):ofad695. PMID: 38352151; PMCID: PMC10863550.
      Citations:    
    4. Rivera AS, Pak KJ, Mefford MT, Hechter RC. Use of Tenofovir Alafenamide Fumarate for HIV Pre-Exposure Prophylaxis and Incidence of Hypertension and Initiation of Statins. JAMA Netw Open. 2023 09 05; 6(9):e2332968. PMID: 37695583; PMCID: PMC10495863.
      Citations: 2     Fields:    Translation:HumansPHPublic Health
    5. Mefford MT, Wei R, Lustigova E, Martin JP, Reynolds K. Incidence of Diabetes Among Youth Before and During the COVID-19 Pandemic. JAMA Netw Open. 2023 09 05; 6(9):e2334953. PMID: 37733344; PMCID: PMC10514735.
      Citations: 5     Fields:    Translation:HumansPHPublic Health
    6. Jensen ET, Rigdon J, Rezaei KA, Saaddine J, Lundeen EA, Dabelea D, Dolan LM, D'Agostino R, Klein B, Meuer S, Mefford MT, Reynolds K, Marcovina SM, Mottl A, Mayer-Davis B, Lawrence JM. Prevalence, Progression, and Modifiable Risk Factors for Diabetic Retinopathy in Youth and Young Adults With Youth-Onset Type 1 and Type 2 Diabetes: The SEARCH for Diabetes in Youth Study. Diabetes Care. 2023 06 01; 46(6):1252-1260. PMID: 37043887; PMCID: PMC10234751.
      Citations: 5     Fields:    Translation:Humans
    7. Mefford MT, Zhou M, Zhou H, Derakhshan H, Harrison TN, Zia M, Kanter MH, Scott RD, Imley TM, Sanders MA, Timmins R, Reynolds K. Safety Net Program to Improve Statin Initiation Among Adults with High LDL-C. Am J Prev Med. 2023 Apr 24. PMID: 37100184.
      Citations: 1     Fields:    Translation:Humans
    8. Shah NS, Shimbo D, Muntner P, Huffman MD, Kandula NR, Mefford MT, Lloyd-Jones DM, Khan SS. Hypertension-Related Cardiovascular Mortality in Asian American Subgroups. Am J Prev Med. 2023 Feb 07. PMID: 36759227.
      Citations: 5     Fields:    Translation:Humans
    9. Mefford MT, Zhou H, Fan D, Fang MC, Prasad PA, Go AS, Portugal C, Chang JM, Reynolds K. Health Literacy and Treatment Satisfaction Among Patients with Venous Thromboembolism. J Gen Intern Med. 2022 Nov 03. PMID: 36326991.
      Citations:    Fields:    Translation:Humans
    10. Mefford MT, Silverberg MJ, Leong TK, Hechter RC, Towner WJ, Go AS, Horberg M, Hu H, Harrison TN, Sung SH, Reynolds K. Multimorbidity Burden and Incident Heart Failure Among People With and Without HIV: The HIV-HEART Study. Mayo Clin Proc Innov Qual Outcomes. 2022 Jun; 6(3):218-227. PMID: 35539894; PMCID: PMC9079699.
      Citations: 1     
    11. Mefford MT, Rana JS, Reynolds K, Ranasinghe O, Mittleman MA, Liu JY, Qian L, Zhou H, Harrison TN, Geller AC, Sloan RP, Mostofsky E, Williams DR, Sidney S. Association of the 2020 US Presidential Election With Hospitalizations for Acute Cardiovascular Conditions. JAMA Netw Open. 2022 04 01; 5(4):e228031. PMID: 35442454; PMCID: PMC9021908.
      Citations: 1     Fields:    Translation:Humans
    12. Mefford MT, Koyama SY, De Jesus J, Wei R, Fischer H, Harrison TN, Woo P, Reynolds K. Representativeness of the GALACTIC-HF Clinical Trial in Patients Having Heart Failure With Reduced Ejection Fraction. J Am Heart Assoc. 2022 Apr 05; 11(7):e023766. PMID: 35322672.
      Citations: 3     Fields:    Translation:Humans
    13. Mefford MT, An J, Gupta N, Harrison TN, Jacobsen SJ, Lee MS, Muntner P, Nkonde-Price C, Qian L, Reynolds K. Rates of Acute Myocardial Infarction During the COVID-19 Pandemic. Perm J. 2021 12 13; 25. PMID: 35348103; PMCID: PMC8784080.
      Citations: 1     Fields:    Translation:HumansPHPublic Health
    14. An J, Zhou H, Luong TQ, Wei R, Mefford MT, Harrison TN, Lee MS, Sim JJ, Brettler JW, Martin JP, Ong-Su AL, Reynolds K. Risk of hospitalization and mortality associated with uncontrolled blood pressure in patients with hypertension and COVID-19. Int J Cardiol Cardiovasc Risk Prev. 2021 Dec; 11:200117. PMID: 34778888; PMCID: PMC8576055.
      Citations: 4     
    15. Mefford MT, Liu R, Bruxvoort K, Qian L, Doris JM, Koyama SY, Tseng HF, Reynolds K. Influenza vaccination and mortality among adults with heart failure in an integrated healthcare delivery system, 2009-2018. J Gen Intern Med. 2021 Aug 11. PMID: 34379280.
      Citations: 1     Fields:    Translation:HumansPHPublic Health
    16. An J, Zhou H, Wei R, Luong TQ, Gould MK, Mefford MT, Harrison TN, Creekmur B, Lee MS, Sim JJ, Brettler JW, Martin JP, Ong-Su AL, Reynolds K. COVID-19 morbidity and mortality associated with angiotensin-converting enzyme inhibitors or angiotensin receptor blockers use among 14,129 patients with hypertension from a US integrated healthcare system. Int J Cardiol Hypertens. 2021 Jun; 9:100088. PMID: 34155486; PMCID: PMC8204813.
      Citations: 3     
    17. Mefford MT, Zhuang Z, Liang Z, Chen W, Koyama SY, Taitano MT, Watson HL, Lee MS, Sidney S, Reynolds K. Temporal trends in heart failure mortality in an integrated healthcare delivery system, California, and the US, 2001-2017. BMC Cardiovasc Disord. 2021 05 26; 21(1):261. PMID: 34039262; PMCID: PMC8157708.
      Citations:    Fields:    Translation:Humans
    18. Mefford MT, Chen L, Lewis CE, Muntner P, Sidney S, Launer LJ, Monda KL, Ruzza A, Kassahun H, Rosenson RS, Carson AP. Long-Term Levels of LDL-C and Cognitive Function: The CARDIA Study. J Int Neuropsychol Soc. 2021 Feb 10; 1-10. PMID: 33563358; PMCID: PMC8353005.
      Citations: 8     Fields:    Translation:Humans
    19. An J, Wei R, Zhou H, Luong TQ, Gould MK, Mefford MT, Harrison TN, Creekmur B, Lee MS, Sim JJ, Brettler JW, Martin JP, Ong-Su AL, Reynolds K. Angiotensin-Converting Enzyme Inhibitors or Angiotensin Receptor Blockers Use and COVID-19 Infection Among 824 650 Patients With Hypertension From a US Integrated Healthcare System. J Am Heart Assoc. 2021 02 02; 10(3):e019669. PMID: 33307964; PMCID: PMC7955437.
      Citations: 17     Fields:    Translation:Humans
    20. Blackston JW, Safford MM, Mefford MT, Freeze E, Howard G, Howard VJ, Naftel DC, Brown TM, Levitan EB. Cardiovascular Disease Events and Mortality After Myocardial Infarction Among Black and White Adults: REGARDS Study. Circ Cardiovasc Qual Outcomes. 2020 12; 13(12):e006683. PMID: 33302710; PMCID: PMC7853403.
      Citations: 8     Fields:    Translation:Humans
    21. Mefford MT, Mittleman MA, Li BH, Qian LX, Reynolds K, Zhou H, Harrison TN, Geller AC, Sidney S, Sloan RP, Mostofsky E, Williams DR. Sociopolitical stress and acute cardiovascular disease hospitalizations around the 2016 presidential election. Proc Natl Acad Sci U S A. 2020 10 27; 117(43):27054-27058. PMID: 33046627; PMCID: PMC7604431.
      Citations: 5     Fields:    Translation:Humans
    22. Tanner RM, Colantonio LD, Kilgore ML, Mefford MT, Chachappan DT, Mues KE, Safford MM, Rosenson RS, Muntner P. Low-density lipoprotein cholesterol levels among individuals experiencing statin-associated symptoms: Data from the REasons for Geographic And Racial Differences in Stroke (REGARDS) study. J Clin Lipidol. 2020 Sep - Oct; 14(5):720-729. PMID: 32680814.
      Citations:    Fields:    Translation:Humans
    23. Mefford MT, Goyal P, Howard G, Durant RW, Dunlap NE, Safford MM, Muntner P, Levitan EB. The association of hypertension, hypertension duration, and control with incident heart failure in black and white adults. J Clin Hypertens (Greenwich). 2020 05; 22(5):857-866. PMID: 32282123; PMCID: PMC7359908.
      Citations: 7     Fields:    Translation:Humans
    24. Goyal P, Mefford MT, Chen L, Sterling MR, Durant RW, Safford MM, Levitan EB. Assembling and validating a heart failure-free cohort from the Reasons for Geographic and Racial Differences in Stroke (REGARDS) study. BMC Med Res Methodol. 2020 03 04; 20(1):53. PMID: 32126970; PMCID: PMC7055019.
      Citations: 12     Fields:    Translation:HumansPHPublic Health
    25. Mefford MT, Li BH, Qian L, Reading SR, Harrison TN, Scott RD, Cavendish JJ, Jacobsen SJ, Kanter MH, Woodward M, Reynolds K. Sex-Specific Trends in Acute Myocardial Infarction Within an Integrated Healthcare Network, 2000 Through 2014. Circulation. 2020 02 18; 141(7):509-519. PMID: 32065770.
      Citations: 15     Fields:    Translation:Humans
    26. Mefford MT, Marcovina SM, Bittner V, Cushman M, Brown TM, Farkouh ME, Tsimikas S, Monda KL, López JAG, Muntner P, Rosenson RS. PCSK9 loss-of-function variants and Lp(a) phenotypes among black US adults. J Lipid Res. 2019 11; 60(11):1946-1952. PMID: 31511398; PMCID: PMC6824493.
      Citations: 5     Fields:    Translation:Humans
    27. Bittner V, Colantonio LD, Dai Y, Woodward M, Mefford MT, Rosenson RS, Muntner P, Monda KL, Kilgore ML, Jaeger BC, Levitan EB. Association of Region and Hospital and Patient Characteristics With Use of High-Intensity Statins After Myocardial Infarction Among Medicare Beneficiaries. JAMA Cardiol. 2019 09 01; 4(9):865-872. PMID: 31339519; PMCID: PMC6659160.
      Citations: 13     Fields:    Translation:Humans
    28. Tajeu GS, Kent ST, Huang L, Bress AP, Cuffee Y, Halpern MT, Kronish IM, Krousel-Wood M, Mefford MT, Shimbo D, Muntner P. Antihypertensive Medication Nonpersistence and Low Adherence for Adults <65 Years Initiating Treatment in 2007-2014. Hypertension. 2019 07; 74(1):35-46. PMID: 31132956; PMCID: PMC6914333.
      Citations: 22     Fields:    Translation:Humans
    29. Mefford MT, Sephel A, Van Dyke MK, Chen L, Durant RW, Brown TM, Fifolt M, Maya J, Goyal P, Safford MM, Levitan EB. Medication-Taking Behaviors and Perceptions Among Adults With Heart Failure (from the REasons for Geographic And Racial Differences in Stroke Study). Am J Cardiol. 2019 05 15; 123(10):1667-1674. PMID: 30879609; PMCID: PMC6488419.
      Citations: 2     Fields:    Translation:Humans
    30. Mefford MT, Rosenson RS, Deng L, Tanner RM, Bittner V, Safford MM, Coll B, Mues KE, Monda KL, Muntner P. Trends in Statin Use Among US Adults With Chronic Kidney Disease, 1999-2014. J Am Heart Assoc. 2019 01 22; 8(2):e010640. PMID: 30651020; PMCID: PMC6497356.
      Citations: 17     Fields:    Translation:Humans
    31. Mefford MT, Tajeu GS, Tanner RM, Colantonio LD, Monda KL, Dent R, Farkouh ME, Rosenson RS, Safford MM, Muntner P. Willingness to be Reinitiated on a Statin (from the REasons for Geographic and Racial Differences in Stroke Study). Am J Cardiol. 2018 09 01; 122(5):768-774. PMID: 30057227.
      Citations: 7     Fields:    Translation:Humans
    32. Mefford MT, Rosenson RS, Cushman M, Farkouh ME, McClure LA, Wadley VG, Irvin MR, Bittner V, Safford MM, Somaratne R, Monda KL, Muntner P, Levitan EB. PCSK9 Variants, Low-Density Lipoprotein Cholesterol, and Neurocognitive Impairment: Reasons for Geographic and Racial Differences in Stroke Study (REGARDS). Circulation. 2018 03 20; 137(12):1260-1269. PMID: 29146683; PMCID: PMC5860959.
      Citations: 18     Fields:    Translation:Humans
    33. Rosenson RS, Farkouh ME, Mefford M, Bittner V, Brown TM, Taylor B, Monda KL, Zhao H, Dai Y, Muntner P. Trends in Use of High-Intensity Statin Therapy After Myocardial Infarction, 2011 to 2014. J Am Coll Cardiol. 2017 Jun 06; 69(22):2696-2706. PMID: 28571633.
      Citations: 30     Fields:    Translation:Humans
    34. Mefford M, Safford MM, Muntner P, Durant RW, Brown TM, Levitan EB. Insurance, self-reported medication adherence and LDL cholesterol: The REasons for Geographic And Racial Differences in Stroke study. Int J Cardiol. 2017 Jun 01; 236:462-465. PMID: 28259549; PMCID: PMC5411175.
      Citations: 3     Fields:    Translation:Humans
    35. Singletary BA, Do AN, Donnelly JP, Huisingh C, Mefford MT, Modi R, Mondesir FL, Ye Y, Owsley C, McGwin G. Self-reported vs state-recorded motor vehicle collisions among older community dwelling individuals. Accid Anal Prev. 2017 Apr; 101:22-27. PMID: 28167421; PMCID: PMC5347974.
      Citations: 5     Fields:    Translation:Humans
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