One-Person Think-Tank BK-Yoo


An abstract is available in the link following "Web Link to PubMed" below each paper's reference.(as of May 17, 2020)

Szilagyi PG, Schaffer S, Rand CM, Goldstein NPN, Hightower AD, Younge M, Eagan A, Blumkin A, Albertin CS, DiBitetto K, Vincelli P, Yoo BK, Humiston SG, “School-Located Influenza Vaccination: Do Vaccine Clinics at School Raise Vaccination Rates?,” Journal of School Health. 2019 Dec;89(12):1004-1012. doi: 10.1111/josh.12840. Epub 2019 Oct 14. (PMID: 31612491) (Impact factor: 1.94)

Ito Y, Hara K, Yoo BK, Tomio J, Kobayashi Y. Can income-based co-payment rates improve disparity? The case of the choice between brand-name and generic drugs. BMC Health Serv Res. 2019 Nov 1;19(1):780. doi: 10.1186/s12913-019-4598-8. (PMID: 31675967) (Impact factor: 1.93)

Yoo BK, Schaffer SJ, Humiston SG, Rand CM, Goldstein NPN, Albertin CS, Concannon C, Szilagyi PG. Cost effectiveness of school-located influenza vaccination programs for elementary and secondary school children. BMC Health Serv Res. 2019 Jun 24;19(1):407. doi: 10.1186/s12913-019-4228-5. (PMID: 31234842) (Impact factor: 1.93)

Szilagyi PG, Schaffer S, Rand CM, Goldstein NPN, Younge M, Mendoza M, Albertin CS, Concannon C, Graupman E, Hightower AD, Yoo BK, Humiston SG, “Text Message Reminders for Child Influenza Vaccination in the Setting of School-Located Influenza Vaccination: A Randomized Clinical Trial.” Clin Pediatr (Phila). 2019 Apr;58(4):428-436. doi: 10.1177/0009922818821878. Epub 2019 Jan 2. (PMID: 30600690) (Impact factor: 1.41)

Szilagyi PG, Schaffer S, Rand CM, Goldstein NPN, Hightower AD, Younge M, Eagan A, Blumkin A, Albertin CS, DiBitetto K, Concannon C, Vincelli P, Yoo BK, Humiston SG, “Impact of Elementary School-Located Influenza Vaccinations: A Stepped Wedge Trial Across a Community,” Vaccine, 2018 May 11;36(20):2861-2869. Epub 2018 Apr 17. (PMID: 29678459) (Impact factor: 3.24)

Zaitsu M, Yoo BK, Tomio J, Nakamura F, Toyokawa S, Kobayashi Y, “Impact of a direct-to-consumer information campaign on prescription patterns for overactive bladder,” BMC Health Serv Res, 2018 May 3;18(1):325. (PMID: 29724205) (Impact factor: 1.83)

Mentored the first author’s PhD dissertation study (in Department of Public Healthy and Policy, the University of Tokyo, Tokyo, Japan) between July 2015 and May 2018.

Szilagyi PG, Schaffer S, Rand CM, Goldstein NPN, Vincelli P, Hightower AD, Younge M, Eagan A, Blumkin A, Albertin CS, DiBitetto K, Yoo BK, Humiston SG, “School-located Influenza Vaccinations for Adolescents: A Randomized Controlled Trial,” J Adolesc Health, 2018 Feb;62(2):157-163. Epub 2017 Dec 13. (PMID: 29248390) (Impact factor: 3.97)

Yoo BK, Kim M, Sasaki T, Hoch J, Marcin JP, “Selected use of telemedicine in intensive care units based on severity of illness improves cost-effectiveness,” Telemedicine and e-Health, 2018 Jan;24(1):21-36. Epub 2017 Jun 29. (PMID: 28661790) (Impact factor: 1.79)

Yoo BK, Hasebe T, Kim M, Sasaki T, Styne DM, “Pilot survey of a novel incentive to promote healthy behavior among school children and their parents,” Preventive Medicine Reports, 2017 Mar 29;6:286-293. (PMID: 28409091) (Impact factor: 0.33)

Yoo BK, Kim M, Sasaki T, Ward D, Spetz J, “The impact of economic recession on registered nurse workforce supply in California,” Nursing Economics, 2017, Jan-Feb;35(1):21-29 (PMID: 29984947) (Impact factor: 0.93)

Szilagyi PG, Schaffer S, Rand CM, Vincelli P, Eagan A, Goldstein NP, Hightower AD, Younge M, Blumkin A, Albertin CS, Yoo BK, Humiston SG. “School-Located Influenza Vaccinations: A Randomized Trial,” Pediatrics, 2016 Nov;138(5). pii:e20161746, (PMID: 27940785) (Impact factor: 5.20)

Yoo BK, Kim M, Lin TC, Sasaki T, Ward D, Spetz J, “The effect of prior healthcare employment on the wages of registered nurses,” BMC Health Services Research, 2016 Aug 19;16(1):412. (PMID: 27542375) (Impact factor: 1.61)

Yoo BK, Kim M, Sasaki T, Melnikow J, Marcin JP, “Economic evaluation of telemedicine for patients in ICUs,” Critical Care Medicine, 2016 Feb;44(2):265-74, (PMID: 26540398) (Impact factor: 7.42)
Selected as a featured article with the journal editor’s comment (Crit Care Med. 2016 Feb;44(2):441-2. PMID: 26771788) in the published issue. Also, invited for the journal’s podcast (interview by a journal editor)

Yoo BK, Lin TC, Kim M, Sasaki T, Spetz J, “Effect of prior health-related employment on the registered nurse workforce supply,” Nursing Economics, 2016 Jan-Feb;34(1):25-34, (PMID: 27055308) (Impact factor: 0.93)

Yoo BK, Humiston SG, Szilagyi PG, Schaffer SJ, Long C, Kolasa M, “Cost effectiveness analysis of Year 2 of an elementary school-located influenza vaccination program – Results from a randomized controlled trial,” BMC Health Services Research, 2015 Nov 16;15:511, (PMID: 26573461) (Impact factor: 1.61)

Yang NH (mentored PhD student in Epidemiology), Dharmar M, Yoo BK, Leigh JP, Kuppermann N, Romano PS, Nesbitt TS, Marcin JP, “Economic Evaluation of Pediatric Telemedicine Consultations to Rural Emergency Departments,” Medical Decision Making, 2015 Aug;35(6):773-83 (PMID: 25952744) (Impact factor: 2.91)

Mentored the first author’s part of a PhD (in epidemiology) dissertation study, who took my course (“Economic Evaluation in Health Care” (SPH 274)) and received the 2013 Student Paper Award from the American Telemedicine Association for this paper’s earlier version.

Kim M, Yoo BK (corresponding author), “Cost-effectiveness analysis of a television campaign to promote seasonal influenza vaccination among the elderly,” Value in Health, 2015 Jul;18(5):622-630, (PMID: 26297090) (Impact factor: 3.82)

Mentored as the first author’s post-doctoral fellow training.

Yoo BK, Hasebe T, Szilagyi PG, “Decomposing Racial/Ethnic Disparities in Influenza Vaccination among the Elderly,” Vaccine, 2015 Jun 12; 33(26):2997-3002, (PMID: 25900133) (Impact factor: 3.41)

Szilagyi PG, Albertin CS, Humiston SG, Rand CM, Schaffer SJ, Brill H, Stankaitis J, Yoo BK, Blumkin AK, Stokley S, “A Randomized Trial of the Effect of Centralized Reminder/Recall on Immunizations and Preventive Care Visits for Adolescents,” Academic Pediatrics, May-Jun 2013;13(3):204-213, (PMID: 23510607) (Impact factor: 2.40)

Yoo BK, Humiston SG, Szilagyi PG, Schaffer SJ, Long C, Kolasa M, “Cost effectiveness analysis of elementary school-located vaccination against influenza—Results from a randomized controlled trial,” Vaccine, 2013 Apr 19;31(17):2156-2164, (PMID: 23499607) (Impact factor: 3.77)

(NOTE: Media coverage includes U.S. News & World Report, San Francisco Chronicle and 139 media outlets in total; Press release by UC Davis:

Holland ML, Yoo BK, Kitzman H, Chaudron L, Szilagyi PG, Temkin-Greener H, “Mother-Child Interactions and the Associations with Child Healthcare Utilization in low-income urban families,” Maternal and Child Health Journal, 2012, 16(1), 83-91 (PMID: 21127953) (Impact factor: 1.77)

Holland ML, Yoo BK, Kitzman H, Chaudron L, Szilagyi PG, Temkin-Greener H., “Self-Efficacy as a Mediator between Maternal Depression and Child Hospitalizations in low-income urban families,” Maternal and Child Health Journal 2011; 15(7): 1011-1019 (PMID: 20706866) (Impact factor: 1.77)

Ikegami N, Yoo BK, Hashimoto H, Matsumoto M, Ogata H, Babazono A, Watanabe R, Shibuya K, Yang BM, Reich MR, Kobayahsi Y, “Japanese Universal Health Coverage: Evolution, Achievements, and Challenges,” Lancet, 2011 Sep 17;378(9796):1106-1115, (PMID: 21885107) (Impact factor: 33.63)

Yoo BK, Kasajima M, Phelps CE, Fiscella K, Bennett NM, Szilagyi PG, “Influenza Vaccine Supply and Racial/Ethnic Disparities in Vaccination Among the Elderly,” American Journal of Preventive Medicine, 2011 Jan; 40(1):1–10, (PMID: 21146761) (Impact factor: 4.24)

(NOTE: Media coverage includes UPI, e!Science News, Science Daily, Medical News Today, SCIENCE CENTRIC, etc.; Selected as one of two articles (in January 2011 issue) by editors to be available free online for all readers. Also, selected to be part of the continuing medical education program for physicians who read this journal.)

Yoo BK, Berry A, Kasajima M, Szilagyi PG, “Association between Medicaid reimbursement and child influenza vaccination rates,” Pediatrics 2010, Nov;126(5):e998-1010. Epub 2010 Oct 18. (PMID: 20956412) (Impact factor: 4.69)

(NOTE: Media coverage includes USA Today, U.S. News & World Report, Bloomberg BusinessWeek, UPI, Reuters, ABC News, MSNBC, Fox News, Yahoo!, e!Science News, News-Medical.Net, Softpedia, Health News on healthfinder (U.S. Department of Health and Human Services), etc.)

Yoo BK, Holland ML, Bhattacharya J, Phelps CE, Szilagyi PG, “Effects of Mass Media Coverage on Timing and Annual Receipt of Influenza Vaccination among Medicare Elderly,” Health Services Research, 2010 Oct;45(5 Pt 1):1287-309 (PMID: 20579128) (Impact factor: 2.41)

(NOTE: Media coverage includes Science Daily, and (interviewed by) KCSN radio station in California and DOTmed News)

Yoo BK, Kasajima M, Bhattacharya J, “Public Avoidance and the Epidemiology of novel H1N1 Influenza A,” National Bureau of Economic Research Working Paper, w15752, National Bureau of Economic Research (NBER), Cambridge, MA, February 2010, (

(Note: The NBER is the nation's leading nonprofit economic research organization. Sixteen of the 31 American Nobel Prize winners in Economics and six of the past Chairmen of the President's Council of Economic Advisers have been researchers at the NBER.)

Yoo BK, Szilagyi PG, Schaffer SJ, Humiston SG, Rand CM, Albertin CS, Vincelli P, Blumkin AK, Shone LP, Coleman MS, “Cost of Universal Influenza Vaccination of Children in Pediatric Practices,” Pediatrics, 2009 Dec;124 Suppl 5:S499-506 (PMID: 19948581) (Impact factor: 4.69)

(Note: Cited by CDC’s Guideline:  Fiore AE, Uyeki TM, Broder K, Finelli L, Euler GL, Singleton JA, Iskander JK, Wortley PM, Shay DK, Bresee JS, Cox NJ; Centers for Disease Control and Prevention (CDC). Prevention and control of influenza with vaccines: recommendations of the Advisory Committee on Immunization Practices (ACIP), 2010. MMWR Recomm Rep. 2010 Aug 6;59(RR-8):1-62. Erratum in: MMWR Recomm Rep. 2010 Aug 13;59(31):993. MMWR Recomm Rep. 2010 Sep 10;59(35):1147. PubMed PMID: 20689501)(

Yoo BK, Kasajima M, Fiscella K, Bennett N, Phelps CE, Szilagyi PG, “Effects of an Ongoing Epidemic on the Annual Influenza Vaccination Rate and Vaccination Timing among the Medicare Elderly: 2000-2005,” American Journal of Public Health, 2009, October; 99:S383–S388 (PMID: 19797752) (Impact factor: 4.37)

Yoo BK, and Grosse S, “The Cost-Effectiveness of Screening Newborns for Congenital Adrenal Hyperplasia,” Public Health Genomics, 2009;12(2):67-72. (PMID: 19039250) (Impact factor: 1.32)

Rand CM, Szilagyi PG, Yoo BK, Auinger P, Albertin C, Coleman MS, “Additional Visit Burden for Universal Influenza Vaccination of U.S. School-Aged Children and Adolescents,” Archives of Pediatrics and Adolescent Medicine, 2008 Nov;162(11):1048-55. (PMID: 18981353) (Impact factor: 4.73)

Yoo BK and Frick K, “The Instrumental Variable Method to Study Self-selection Mechanism: A Case of Influenza Vaccination,” Value in Health, 2006 Mar-Apr;9(2):114-22 (PMID: 16626415) (Impact factor: 3.03)

(Note: Cited by Editorial Article in New England Journal of Medicine: Treanor JD, “Influenza--the goal of control,” N Engl J Med. 2007 Oct 4;357(14):1439-41.)

Yoo BK and Frick K, “Determinants of Influenza Vaccination Timing,” Health Economics, 2005 Aug; 14(8):777-91 (PMID: 15700301) (Impact factor: 2.01)

Yoo BK, Bhattacharya J, McDonald KM, Garber AM, “Impacts of Informal Caregiver Availability on Long-term Care Expenditures in OECD Countries,” Health Services Research, 2004 Dec; 39 (6 Pt 2):1971-92. (PMID: 15544640) (Impact factor: 2.49)

Review Articles

Akiyama M, Yoo BK (corresponding author), “A systematic review of the economic evaluation of telemedicine in Japan,” Journal of Preventive Medicine & Public Health, 2016;49:183-196 (PMID: 27499161) (Impact factor: 0.90)

Yoo BK, “How to improve influenza vaccination rates in the U.S.”, Journal of Preventive Medicine & Public Health, 2011; 44(4):141-148 (PMID: 21894062) (Impact factor: 0.90)