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John Kwagyan

TitleBiostatistican
InstitutionHoward University
DepartmentPharmacology
AddressHoward University College of Medicine
Washington DC 20059
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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. Okeke CAV, Perry JD, Simmonds FC, Erskine AB, Shipman WD, Seltzer JA, Andrews MR, Saini AD, Cole TA, Perkins JA, Otado J, Kwagyan J, Collins CIF, Okoye GA, Byrd AS. Clinical Trials and Skin of Color: The Example of Hidradenitis Suppurativa. Dermatology. 2021 Jun 09; 1-5. PMID: 34107480.
      Citations:    Fields:    
    2. Davis SA, Bovelle R, Han G, Kwagyan J. Corneal collagen cross-linking for bacterial infectious keratitis. Cochrane Database Syst Rev. 2020 06 17; 6:CD013001. PMID: 32557558.
      Citations: 3     Fields:    Translation:Humans
    3. Laiyemo AO, Idowu KA, Burnside C, Williams CD, Jack M, Mekasha G, Ashktorab H, Brim H, Lee EL, Sanderson AK, Kibreab A, Kwagyan J. Comparison of patterns of laxative ingestion to improve bowel preparation for colonoscopy: a pilot randomized clinical trial. Endosc Int Open. 2020 May; 8(5):E617-E622. PMID: 32355879.
      Citations:    
    4. Adler P, Otado J, Kwagyan J. Satisfaction and perceptions of research participants in clinical and translational studies: An urban multi-institution with CTSA. J Clin Transl Sci. 2020 Mar 06; 4(4):317-322. PMID: 33244412.
      Citations:    
    5. Laiyemo AO, Kwagyan J, Williams CD, Rogers J, Kibreab A, Jack MA, Lee EE, Brim H, Ashktorab H, Howell CD, Smoot DT, Platz EA. Using Patients' Social Network to Improve Compliance to Outpatient Screening Colonoscopy Appointments Among Blacks: A Randomized Clinical Trial. Am J Gastroenterol. 2019 10; 114(10):1671-1677. PMID: 31478919.
      Citations: 1     Fields:    Translation:HumansPHPublic Health
    6. Houston P, Powell E, Khan J, Sultana S, Kwagyan J, Kharfen M, Rana S. Thirty-Five Years Later: HIV Stigma in Washington, DC Health Care Workers. J Assoc Nurses AIDS Care. 2019 May-Jun; 30(3):344-351. PMID: 30768434.
      Citations:    Fields:    Translation:Humans
    7. Bartholomew AJ, Houk AK, Pulcrano M, Shara NM, Kwagyan J, Jackson PG, Sosin M. Meta-Analysis of Surgeon Burnout Syndrome and Specialty Differences. J Surg Educ. 2018 Sep - Oct; 75(5):1256-1263. PMID: 29500145.
      Citations: 4     Fields:    Translation:Humans
    8. Kwagyan J, Apprey V. Modeling clustered binary data with excess zero clusters. Stat Methods Med Res. 2018 09; 27(9):2641-2656. PMID: 30103662.
      Citations:    Fields:    Translation:Humans
    9. Allard JS, Ntekim O, Johnson SP, Ngwa JS, Bond V, Pinder D, Gillum RF, Fungwe TV, Kwagyan J, Obisesan TO. APOEe4 impacts up-regulation of brain-derived neurotrophic factor after a six-month stretch and aerobic exercise intervention in mild cognitively impaired elderly African Americans: A pilot study. Exp Gerontol. 2017 01; 87(Pt A):129-136. PMID: 27864047.
      Citations: 14     Fields:    Translation:Humans
    10. Erebholo F, Bezandry P, Apprey V, Kwagyan J. Analysis of Incomplete Longitudinal Binary Data-A Combined Markov's Transition and Logistic Model for Non-ignorable Missingness. Appl Appl Math. 2016 Jun; 11(1):83-96. PMID: 28729894.
      Citations:    
    11. Erebholo F, Apprey V, Bezandry P, Kwagyan J. A Correlated Binary Model for Ignorable Missing Data: Application to Rheumatoid Arthritis Clinical Data. J Data Sci. 2016 Apr; 14(2):365-382. PMID: 28066502.
      Citations:    
    12. Laiyemo AO, Burnside C, Laiyemo MA, Kwagyan J, Williams CD, Idowu KA, Ashktorab H, Kibreab A, Scott VF, Sanderson AK. Beverage intake preference and bowel preparation laxative taste preference for colonoscopy. World J Gastrointest Pharmacol Ther. 2015 Aug 06; 6(3):84-8. PMID: 26261736.
      Citations:    
    13. Cain GE, Kalu N, Kwagyan J, Marshall VJ, Ewing AT, Bland WP, Hesselbrock V, Taylor RE, Scott DM. Beliefs and Preferences for Medical Research Among African-Americans. J Racial Ethn Health Disparities. 2016 Mar; 3(1):74-82. PMID: 26896107.
      Citations: 6     Fields:    Translation:Humans
    14. Otado J, Kwagyan J, Edwards D, Ukaegbu A, Rockcliffe F, Osafo N. Culturally Competent Strategies for Recruitment and Retention of African American Populations into Clinical Trials. Clin Transl Sci. 2015 Oct; 8(5):460-6. PMID: 25974328.
      Citations: 35     Fields:    Translation:Humans
    15. Kalu N, Cain G, McLaurin-Jones T, Scott D, Kwagyan J, Fassassi C, Greene W, Taylor RE. Impact of a multicomponent screening, brief intervention, and referral to treatment (SBIRT) training curriculum on a medical residency program. Subst Abus. 2016; 37(1):242-7. PMID: 25961140.
      Citations: 2     Fields:    Translation:Humans
    16. Kwagyan J, Retta TM, Ketete M, Bettencourt CN, Maqbool AR, Xu S, Randall OS. Obesity and Cardiovascular Diseases in a High-Risk Population: Evidence-Based Approach to CHD Risk Reduction. Ethn Dis. 2015; 25(2):208-13. PMID: 26118150.
      Citations: 13     Fields:    Translation:Humans
    17. Laiyemo AO, Williams CD, Burnside C, Moghadam S, Sanasi-Bhola KD, Kwagyan J, Brim H, Ashktorab H, Scott VF, Smoot DT. Factors associated with attendance to scheduled outpatient endoscopy. Postgrad Med J. 2014 Oct; 90(1068):571-5. PMID: 25180285.
      Citations: 5     Fields:    Translation:Humans
    18. Scott DM, Nwulia E, Kwagyan J, Cain G, Marshall VJ, Kalu N, Ewing A, Taylor RE. Genetic testing for the susceptibility to alcohol dependence: interest and concerns in an African American population. Genet Test Mol Biomarkers. 2014 Aug; 18(8):538-45. PMID: 24926856.
      Citations: 8     Fields:    Translation:HumansCTClinical Trials
    19. Randall O, Kwagyan J, Retta T, Jamerson K, Pogue V, Norris K, Ketete M, Xu S, Greene T, Wang X, Agodoa L. Effect of intensive blood pressure control on cardiovascular remodeling in hypertensive patients with nephrosclerosis. Int J Nephrol. 2013; 2013:120167. PMID: 24102027.
      Citations:    
    20. Esnakula AK, Ricks-Santi L, Kwagyan J, Kanaan YM, DeWitty RL, Wilson LL, Gold B, Frederick WA, Naab TJ. Strong association of fascin expression with triple negative breast cancer and basal-like phenotype in African-American women. J Clin Pathol. 2014 Feb; 67(2):153-60. PMID: 23986556.
      Citations: 16     Fields:    Translation:Humans
    21. Walcourt A, Kurantsin-Mills J, Kwagyan J, Adenuga BB, Kalinowski DS, Lovejoy DB, Lane DJ, Richardson DR. Anti-plasmodial activity of aroylhydrazone and thiosemicarbazone iron chelators: effect on erythrocyte membrane integrity, parasite development and the intracellular labile iron pool. J Inorg Biochem. 2013 Dec; 129:43-51. PMID: 24028863.
      Citations:    Fields:    Translation:HumansAnimalsCells
    22. Marshall VJ, Ramchandani VA, Kalu N, Kwagyan J, Scott DM, Ferguson CL, Taylor RE. Evaluation of the influence of alcohol dehydrogenase polymorphisms on alcohol elimination rates in African Americans. Alcohol Clin Exp Res. 2014 Jan; 38(1):51-9. PMID: 23915245.
      Citations: 4     Fields:    Translation:Humans
    23. Marshall VJ, Kalu N, Kwagyan J, Scott DM, Cain GE, Hill K, Hesselbrock V, Ferguson CL, Taylor RE. Alcohol dependence and health care utilization in African Americans. J Natl Med Assoc. 2013; 105(1):42-9. PMID: 23862295.
      Citations: 1     Fields:    Translation:Humans
    24. Naqvi A, Gillum RF, Kwagyan J, Obisesan TO. Serum vitamin status profile and cognitive function in a national sample of older americans. J Am Geriatr Soc. 2012 Dec; 60(12):2374-5. PMID: 23231562.
      Citations:    Fields:    Translation:Humans
    25. Kaur P, Rizk NM, Ibrahim S, Younes N, Uppal A, Dennis K, Karve T, Blakeslee K, Kwagyan J, Zirie M, Ressom HW, Cheema AK. iTRAQ-based quantitative protein expression profiling and MRM verification of markers in type 2 diabetes. J Proteome Res. 2012 Nov 02; 11(11):5527-39. PMID: 23050762.
      Citations: 23     Fields:    Translation:Humans
    26. Yousuf SJ, Kwagyan J, Jones LS. Applicants' choice of an ophthalmology residency program. Ophthalmology. 2013 Feb; 120(2):423-7. PMID: 23084123.
      Citations: 8     Fields:    Translation:Humans
    27. Marshall VJ, McLaurin-Jones TL, Kalu N, Kwagyan J, Scott DM, Cain G, Greene W, Adenuga B, Taylor RE. Screening, brief intervention, and referral to treatment: public health training for primary care. Am J Public Health. 2012 Aug; 102(8):e30-6. PMID: 22698040.
      Citations: 6     Fields:    Translation:HumansPHPublic Health
    28. Badurdeen DS, Umar NA, Begum R, Sanderson AK, Jack M, Mekasha G, Kwagyan J, Smoot DT, Laiyemo AO. Timing of procedure and compliance with outpatient endoscopy among an underserved population in an inner-city tertiary institution. Ann Epidemiol. 2012 Jul; 22(7):531-5. PMID: 22571991.
      Citations: 3     Fields:    Translation:Humans
    29. Obisesan TO, Gillum RF, Johnson S, Umar N, Williams D, Bond V, Kwagyan J. Neuroprotection and neurodegeneration in Alzheimer's disease: role of cardiovascular disease risk factors, implications for dementia rates, and prevention with aerobic exercise in african americans. Int J Alzheimers Dis. 2012; 2012:568382. PMID: 22577592.
      Citations:    
    30. Kwagyan J, Apprey V, Ashktorab H. Linkage disequilibrium and haplotype analysis of COX-2 and risk of colorectal adenoma development. Clin Transl Sci. 2012 Feb; 5(1):60-4. PMID: 22376259.
      Citations: 3     Fields:    Translation:HumansCells
    31. Marshall VJ, Kalu N, Kwagyan J, Williams C, Taylor RE, Scott DM. Perceptions about genetic testing for the susceptibility to alcohol dependence and other multifactorial diseases. Genet Test Mol Biomarkers. 2012 Jun; 16(6):476-81. PMID: 22191677.
      Citations: 4     Fields:    Translation:Humans
    32. Cherqaoui R, Kassim TA, Kwagyan J, Freeman C, Nunlee-Bland G, Ketete M, Xu S, Randall OS. The metabolically healthy but obese phenotype in African Americans. J Clin Hypertens (Greenwich). 2012 Feb; 14(2):92-6. PMID: 22277141.
      Citations: 16     Fields:    Translation:Humans
    33. Gillum RF, Kwagyan J, Obisesan TO. Ethnic and geographic variation in stroke mortality trends. Stroke. 2011 Nov; 42(11):3294-6. PMID: 21940976.
      Citations: 18     Fields:    Translation:Humans
    34. Gillum RF, Kwagyan J, Obisesan TO. Smoking, cognitive function and mortality in a U.S. national cohort study. Int J Environ Res Public Health. 2011 09; 8(9):3628-36. PMID: 22016707.
      Citations: 3     Fields:    Translation:Humans
    35. Napan S, Kwagyan J, Randall OS, Xu S, Ketete M, Maqbool AR. Nocturnal blood pressure nondipping in obese African-Americans. Blood Press Monit. 2011 Jun; 16(3):111-6. PMID: 21499080.
      Citations:    Fields:    Translation:Humans
    36. Diep L, Kwagyan J, Kurantsin-Mills J, Weir R, Jayam-Trouth A. Association of physical activity level and stroke outcomes in men and women: a meta-analysis. J Womens Health (Larchmt). 2010 Oct; 19(10):1815-22. PMID: 20929415.
      Citations: 26     Fields:    Translation:Humans
    37. Kwagyan J, Hussein S, Xu S, Ketete M, Maqbool AR, Schneider RH, Randall OS. The relationship between flow-mediated dilatation of the brachial artery and intima-media thickness of the carotid artery to Framingham risk scores in older African Americans. J Clin Hypertens (Greenwich). 2009 Dec; 11(12):713-9. PMID: 20021528.
      Citations: 3     Fields:    Translation:Humans
    38. Faruque MU, Millis RM, Dunston GM, Kwagyan J, Bond V, Rotimi CN, Davis T, Christie R, Campbell AL. Association of GNB3 C825T polymorphism with peak oxygen consumption. Int J Sports Med. 2009 May; 30(5):315-9. PMID: 19301222.
      Citations: 3     Fields:    Translation:HumansCells
    39. Al-Dabagh H, Archer J, Newton M, Kwagyan J, Nunlee-Bland G. Osteoporosis awareness protocol for patients with fragility fractures. J Natl Med Assoc. 2009 Feb; 101(2):145-50. PMID: 19378631.
      Citations: 3     Fields:    Translation:HumansPHPublic Health
    40. Taylor RE, Raysor BR, Kwagyan J, Ramchandani VA, Kalu N, Powell-Davis M, Ferguson CL, Carr L, Scott DM. Alterations in ethyl alcohol pharmacokinetics during oral consumption of malt liquor beverages in African Americans. Alcohol Clin Exp Res. 2008 Dec; 32(12):2074-80. PMID: 18828806.
      Citations: 6     Fields:    Translation:Humans
    41. Ashktorab H, Tsang S, Luke B, Sun Z, Adam-Campbell L, Kwagyan J, Poirier R, Akter S, Akhgar A, Smoot D, Munroe DJ, Ali IU. Protective effect of Cox-2 allelic variants on risk of colorectal adenoma development in African Americans. Anticancer Res. 2008 Sep-Oct; 28(5B):3119-23. PMID: 19031967.
      Citations: 6     Fields:    Translation:Humans
    42. Scott DM, Williams CD, Cain GE, Kwagyan J, Kalu N, Ehlers CL, Hesselbrock V, Taylor RE. Clinical course of alcohol dependence in African Americans. J Addict Dis. 2008; 27(4):43-50. PMID: 19042590.
      Citations: 10     Fields:    Translation:Humans
    43. Onyekwere OC, Campbell A, Teshome M, Onyeagoro S, Sylvan C, Akintilo A, Hutchinson S, Ensing G, Gaskin P, Kato G, Rana S, Kwagyan J, Gordeuk V, Williams J, Castro O. Pulmonary hypertension in children and adolescents with sickle cell disease. Pediatr Cardiol. 2008 Mar; 29(2):309-12. PMID: 17680298.
      Citations: 27     Fields:    Translation:Humans
    44. Darbari DS, Kple-Faget P, Kwagyan J, Rana S, Gordeuk VR, Castro O. Circumstances of death in adult sickle cell disease patients. Am J Hematol. 2006 Nov; 81(11):858-63. PMID: 16924640.
      Citations: 65     Fields:    Translation:Humans
    45. Kamineni P, Chirla S, Dinh K, Hasan S, Nidhiry E, Kwagyan J, Naab T, Lombardo F, Castro O, Dawkins F. Low cobalamin levels in African Americans with and without sickle cell disease. J Natl Med Assoc. 2006 Mar; 98(3):352-6. PMID: 16573298.
      Citations: 4     Fields:    Translation:Humans
    46. Randall OS, Kwagyan J, Huang Z, Xu S, Ketete M, Maqbool AR. Effect of diet and exercise on pulse pressure and cardiac function in morbid obesity: analysis of 24-hour ambulatory blood pressure. J Clin Hypertens (Greenwich). 2005 Aug; 7(8):455-63. PMID: 16103756.
      Citations: 4     Fields:    Translation:Humans
    47. Kwagyan J, Tabe CE, Xu S, Maqbool AR, Gordeuk VR, Randall OS. The impact of body mass index on pulse pressure in obesity. J Hypertens. 2005 Mar; 23(3):619-24. PMID: 15716705.
      Citations: 9     Fields:    Translation:Humans
    48. Randall OS, Retta TM, Kwagyan J, Gordeuk VR, Xu S, Maqbool AR, Ketete M, Obisesan TO. Obese African Americans: the prevalence of dyslipidemia, hypertension, and diabetes mellitus. Ethn Dis. 2004; 14(3):384-8. PMID: 15328940.
      Citations: 4     Fields:    Translation:Humans
    49. Randall OS, Feseha HB, Illoh K, Xu S, Ketete M, Kwagyan J, Tilghman C, Wrenn M. Response of lipoprotein(a) levels to therapeutic life-style change in obese African-Americans. Atherosclerosis. 2004 Jan; 172(1):155-60. PMID: 14709370.
      Citations: 3     Fields:    Translation:Humans
    50. Kittles RA, Chen W, Panguluri RK, Ahaghotu C, Jackson A, Adebamowo CA, Griffin R, Williams T, Ukoli F, Adams-Campbell L, Kwagyan J, Isaacs W, Freeman V, Dunston GM. CYP3A4-V and prostate cancer in African Americans: causal or confounding association because of population stratification? Hum Genet. 2002 Jun; 110(6):553-60. PMID: 12107441.
      Citations: 63     Fields:    Translation:HumansCells
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