Heather J Hoffman

Heather J. Hoffman

Heather J Hoffman

Ph.D.

Professor and Vice Chair


School: Milken Institute School of Public Health

Department: Biostatistics and Bioinformatics

Contact:

Office Phone: 202-994-8587
Science & Engineering Hall 800 22nd Street, NW Washington DC 20052

Dr. Heather Hoffman is a Professor and Vice Chair of the Department of Biostatistics and Bioinformatics. Dr. Hoffman is the MPH Biostatistics Program Director, and she serves as Chair of the departmental Curriculum Committee. She teaches advanced quantitative and programming courses on campus and online, including Biostatistical Applications for Public Health, Use of SAS for Data Management and Data Analysis, Applied Survival Data Analysis, Advanced Data Analysis, Advanced SAS, and Quantitative Methods. She has received Excellence in Teaching awards and is a member of the Master Teachers Academy in the Milken Institute School of Public Health. Dr. Hoffman's diverse research portfolio focuses primarily on HIV/AIDS, breast cancer and education innovation research. She has co-authored more than 50 articles in the peer reviewed literature and contributed to more than 60 presentations at scientific conferences. She serves as the biostatistician on multiple grants and contracts funded by the NIH and USAID through the Elizabeth Glaser Pediatric AIDS Foundation and the GWSPH Biostatistics and Epidemiology Consulting Service. Dr. Hoffman serves as the faculty advisor for multiple masters and doctoral students each year. Dr. Hoffman is a member of the American Statistical Association and is the publicity officer and portal reviewer for the Teaching of Statistics in the Health Sciences Section. Dr. Hoffman also serves on the United States Transuranium and Uranium Registries Scientific Advisory Committee.


EXPERTISE: 

Biostatistics
 

EDUCATION: 

Bachelor of Science (Mathematics), Christopher Newport University, 2001 

Doctor of Philosophy (Biostatistics), Virginia Commonwealth University, 2005
 

TEACHING: 

PubH 6002: Biostatistical Applications for Public Health, Department of Biostatistics and Bioinformatics

PubH 6853: Use of SAS for Data Management and Analysis, Department of Biostatistics and Bioinformatics

PubH 6856: Advanced SAS for Public Health Research, Department of Biostatistics and Bioinformatics

PubH 6864: Applied Survival Analysis for Public Health Research, Department of Biostatistics and Bioinformatics

PubH 6868: Quantitative Methods, Department of Biostatistics and Bioinformatics
 

COMMUNITY SERVICE: 

United States Transuranium & Uranium Registries (USTUR) Scientific Advisory Committee
 

INSTITUTES AND CENTERS: 

Center for HIV/AIDS Epidemiology, Biostatistics and Public Health Laboratory Research

PUBLICATIONS: 

Gill MM, Khumalo P, Chouraya C, Kunene M, Dlamini F, Hoffman HJ, Scheuerle AE, Nhlabatsi B, Mngometulu W, Dlamini-Madlopha N, Mthunzi N, Mofenson L. Strengthening the evidence: Similar rates of neural tube defects among deliveries regardless of maternal HIV status and Dolutegravir exposure in hospital birth surveillance in Eswatini. Open Forum Infect Dis. 2023;10(9). doi: 10.1093/ofid/ofad441

Antelman G, Ferla J, Gill MM, Hoffman HJ, Komba T, Abubakar A, Remes P, Jahanpour O, Mariki M, Mang’enya MA, van de Ven R. Effectiveness of an integrated multilevel early child development intervention on caregiver knowledge and behavior: A quasi-experimental evaluation of the Malezi program in Tanzania. BMC Public Health. 2023;23(19). doi: 10.1186/s12889-022-14956-2

Harris LR, Hoffman HJ, Griffith CJ, Lee N, Koay WL, Rakhmanina NY. Factors Associated with Transition of HIV Care Readiness among Adolescents and Youth from a Specialty Pediatric HIV Clinic in the United States. AIDS Patient Care STDS. 2021;35(12):495-502. doi: 10.1089/apc.2021.0123

Hoffman HJ and Elmi AF. Do Students Learn More from Erroneous Code? Exploring Student Performance and Satisfaction in an Error-Free Versus an Error-Full SAS® Programming Environment. J of Stat and Data Sci Educ. 2021; 29(3):228-240. doi: 10.1080/26939169.2021.1967229

Tukei VJ, Hoffman HJ, Greenberg L, Thabelo R, Nchephe M, Mots’oane T, Masitha M, Chabela M, Mokone M, Mofenson L, Guay L, Tiam A. Adverse Pregnancy Outcomes among HIV-Positive Women in the era of Universal Antiretroviral Therapy Remain Elevated Compared with HIV-Negative Women. Pediatr Infect Dis J. 2021;40(9):821-826. doi: 10.1097/INF.0000000000003174

Kays M, Woelk G, Callahan T, Katirayi L, Montandon M, Chauwa F, Laterra A, Sampathkumar V, Kayira D, Kalua T, Kazemi E, Hoffman HJ, Modi S. Evaluating the effect of a community score card among pregnant and breastfeeding women living with HIV in two districts in Malawi. PLoS One. 2021;16(8):e0255788. doi: 10.1371/journal.pone.0255788

Hoffman HJ and Elmi AF. Comparing Student Performance in a Graduate-Level Introductory Biostatistics Course Using an Online Versus a Traditional In-Person Learning Environment. J of Stat and Data Sci Educ. 2021;29(1):105-114. doi: 10.1080/10691898.2020.1841592

Mohamed MA, Frasketi MJ, Aly S, El-Dib M, Hoffman HJ, and Aly H. Changes in cerebral tissue oxygenation and fractional oxygen extraction with gestational age and postnatal maturation in preterm infants. J Perinatol. 2021;41(4):836-842. doi: 10.1038/s41372-020-00794-w

Mouhanna F, Castel A, Sullivan PS, Kuo I, Hoffman HJ, Siegler AJ, Jones J, Kramer M. Small-area spatial-temporal changes in Pre-Exposure Prophylaxis (PrEP) use in the general population and among men who have sex with men in the United States between 2012 and 2018. Ann Epidemiol. 2020;49:1-7. doi: 10.1016/j.annepidem.2020.07.001

Gill MM, Natumanya EK, Hoffman HJ, Okomo G, Taasi G, Guay L, Masaba R. Active pediatric HIV case finding in Kenya and Uganda: A look at missed opportunities along the prevention of mother-to-child transmission of HIV (PMTCT) cascade. PLoS ONE. 2020;15(6):e0233590. doi: 10.1371/journal.pone.0233590

24-month HIV-free survival among infants born to HIV-positive women enrolled in Option B+ Program in Kigali, Rwanda: The Kabeho Study.
Gill MM, Hoffman HJ, Ndatimana D, Mugwaneza P, Guay L, Ndayisaba GF, Bobrow EA, Asiimwe A, Mofenson L. 24-month HIV-free survival among infants born to HIV-positive women enrolled in Option B+ Program in Kigali, Rwanda: The Kabeho Study. Medicine. 2017;96(51):e9445. doi:10.1097/MD.0000000000009445

Assessing very early infant diagnosis turnaround times: Findings from a birth testing pilot in Lesotho.
Gill MM, Hoffman HJ, Mokone M, Tukei VJ, Nchephe M, Phalatse M, Tiam A, Guay L, Mofenson L. Assessing very early infant diagnosis turnaround times: Findings from a birth testing pilot in Lesotho. AIDS Res Treat. 2017. doi:10.1155/2017/2572594

Conventional early infant diagnosis in Lesotho from specimen collection to results usage to manage patients: where are the bottlenecks? 
Tiam A, Gill M, Hoffman HJ, Isavwa A, Mokone M, Foso M, Safrit JT, Tylleskär T, and Guay L. Conventional early infant diagnosis in Lesotho from specimen collection to results usage to manage patients: where are the bottlenecks? PLoS ONE. 2017;12(10):e0184769. doi:10.1371/journal.pone.0184769

Understanding Antiretroviral Treatment Adherence among HIV-positive Women at Four Postpartum Time Intervals: Qualitative Results from the Kabeho Study in Rwanda.
Gill MM, Umutoni A, Hoffman HJ, Ndatimana D, Ndayisaba GF, Kibitenga S, Mugwaneza P, Asiimwe A, Bobrow EA. Understanding Antiretroviral Treatment Adherence among HIV-positive Women at Four Postpartum Time Intervals: Qualitative Results from the Kabeho Study in Rwanda. AIDS Patient Care STDS. 2017;31(4):153-166. doi:10.1089/apc.2016.0234

Detectable Viral Load in Late Pregnancy among Women in the Rwanda Option B+ PMTCT Program: Enrollment Results from the Kabeho Study. 
Gill MM, Hoffman HJ, Bobrow EA, Mugwaneza P, Ndatimana D, Ndayisaba GF, Baribwira C, Guay L, Asiimwe A. Detectable Viral Load in Late Pregnancy among Women in the Rwanda Option B+ PMTCT Program: Enrollment Results from the Kabeho Study. PLoS ONE. 2016;11(12):e0168671. doi:10.1371/journal.pone.0168671

Demographic factors related to young age at diagnosis of chronic myeloid leukemia in India.
Levine PH, Ajmera K, O’Neill B, Venkatesh V, Garcia-Gonzales P, Hoffman HJ. Demographic factors related to young age at diagnosis of chronic myeloid leukemia in India. Clin Epidemiol Glob Health. 2016;4(4):188-192. doi:10.1016/j.cegh.2016.06.001

Retention of mothers and infants in the prevention of mother-to-child transmission of HIV program is associated with individual and facility-level factors in Rwanda.
Woelk GB, Ndatimana D, Behan S, Mukaminega M, Nyirabahizi E, Hoffman HJ, Mugwaneza P, Ribakare M, Amzel A, Phelps BR. Retention of mothers and infants in the prevention of mother-to-child transmission of HIV program is associated with individual and facility-level factors in Rwanda. J Int AIDS Soc. 2016;19(Suppl 4):20837. doi: 10.7448/IAS.19.5.20837

The Impact of Patient Navigation on Timely Cancer Care: The Patient Navigation Research Program.
Freund KM, Battaglia TA, Calhoun E, Darnell JS, Dudley DJ, Fiscella K, Hare ML, LaVerda N, Lee JH, Levine PH, Murray DM, Patierno SR, Raich PC, Roetzheim RG, Simon M, Snyder FR, Warren-Mears V, Whitley EM, Winters P, Young GS, Paskett ED, and for the Writing Group of the Patient Navigation Research Program. (Hoffman HJ, Biostatistician for the DC Patient Navigation Research Program). The Impact of Patient Navigation on Timely Cancer Care: The Patient Navigation Research Program. J Natl Cancer Inst. 2014;106(6): dju115. doi: 10.1093/jnci/dju115

Male pattern baldness in relation to prostate cancer-specific mortality: A prospective analysis in the NHANES I Epidemiologic Follow-up Study (NHEFS). 
Zhou CK, Levine P, Cleary S, Hoffman HJ, Graubard B, Cook M. Male pattern baldness in relation to prostate cancer-specific mortality: A prospective analysis in the NHANES I Epidemiologic Follow-up Study (NHEFS). Am J Epidemiol. 2016;183(3):210-217. doi: 10.1093/aje/kwv190

Hyperactivated mTOR and JAK2/STAT3 Pathways: Molecular Drivers and Potential Therapeutic Targets of Inflammatory and Invasive Ductal Breast Cancer After Neoadjuvant Chemotherapy. Jhaveri K, Teplinsky E, Silvera D, Valeta A, Arzu R, Giashuddin S, Sarfraz Y, Alexander M, Darvishian F, Levine PH, Hashmi S, Zolfaghari L, Hoffman HJ, Singh B, Goldberg JD, Hochman T, Formenti S, Francisco Esteva, Moran M, Schneider RJ. Hyperactivated mTOR and JAK2/STAT3 Pathways: Molecular Drivers and Potential Therapeutic Targets of Inflammatory and Invasive Ductal Breast Cancer After Neoadjuvant Chemotherapy. Clin Breast Cancer. 2016;16(2):113-122. doi: 10.1016/j.clbc.2015.11.006

Barriers to health care contribute to delays in follow-up among women with abnormal cancer screening: Data from the Patient Navigation Research Program.
Ramachandran A, Snyder FR, Katz ML, Darnell JS, Dudley DJ, Patierno SR, Sanders MR, Valverde PA, Simon MA, Warren-Mears V, Battaglia TA; Patient Navigation Research Program Investigators. (Hoffman HJ, Biostatistician for the DC Patient Navigation Research Program). Barriers to health care contribute to delays in follow-up among women with abnormal cancer screening: Data from the Patient Navigation Research Program. Cancer. 2015;121(22):4016-24. doi: 10.1002/cncr.29607.

Pregnant and postpartum women’s experiences and perspectives on the acceptability and feasibility of copackaged medicine for antenatal care and PMTCT in Lesotho.
Gill M, Hoffman HJ, Tiam A, Mohai F, Mokone M, Isavwa A, Mohale S, Makhohlisa M, Ankrah V, Luo C, Guay L. Pregnant and postpartum women’s experiences and perspectives on the acceptability and feasibility of copackaged medicine for antenatal care and PMTCT in Lesotho. AIDS Res Treat. 2015;2015. doi: 10.1155/2015/435868

Parity and diabetes risk among Hispanic women from Colombia: Cross-sectional evidence.
Cure P, Hoffman HJ, Cure-Cure C. Parity and diabetes risk among Hispanic women from Colombia: Cross-sectional evidence. Diabetol Metab Syndr. 2015;7:7. doi: 10.1186/s13098-015-0001-z

Pseudo-likelihood estimation of multivariate normal parameters in the presence of left-censored data.
Hoffman HJ and Johnson RE. Pseudo-likelihood estimation of multivariate normal parameters in the presence of left-censored data. J Agric Biol Environ Stat. 2015;20(1):156-171. doi: 10.1007/s13253-014-0194-x

Male pattern baldness in relation to prostate cancer risk: an analysis in the VITamins And Lifestyle (VITAL) cohort study. 
Zhou CK, Littman AJ, Levine PH, Hoffman HJ, Cleary SD, White E, Cook MB. Male pattern baldness in relation to prostate cancer risk: an analysis in the VITamins And Lifestyle (VITAL) cohort study. Prostate. 2015;75(4):415-423. doi: 10.1002/pros.22927

True Durability: HIV Virologic Suppression in an Urban Clinic and Implications for Timing of Intensive Adherence Efforts and Viral Load Monitoring.
Benator DA, Elmi AF, Rodriguez MD, Gale HB, Kan VL, Hoffman HJ, Tramazzo S, Hall K, McKnight A, Squires L. True Durability: HIV Virologic Suppression in an Urban Clinic and Implications for Timing of Intensive Adherence Efforts and Viral Load Monitoring. AIDS Behav. 2015;19(4):594-600. doi: 10.1007/s10461-014-0917-6

Relationship between male pattern baldness and the risk of aggressive prostate cancer: an analysis of the Prostate, Lung, Colorectal and Ovarian (PLCO) Cancer Screening Trial.
Zhou CK, Pfeiffer RM, Cleary SD, Hoffman HJ, Levine PH, Chu LW, Hsing AW, Cook MB. Relationship between male pattern baldness and the risk of aggressive prostate cancer: an analysis of the Prostate, Lung, Colorectal and Ovarian (PLCO) Cancer Screening Trial. J Clin Oncol. 2015;33(5):419-425. doi: 10.1200/JCO.2014.55.4279

Prognostic value of lymphocyte vascular density and E-cadherin in inflammatory breast cancer.
Levine PH, Hoffman HJ, MacNeil A, Hashmi S, Yang SX, Hewitt S, van Golen KL, Swain SM. Prognostic value of lymphocyte vascular density and E-cadherin in inflammatory breast cancer. J Cancer Ther. 2014;5:1380-1387. doi: 10.4236/jct.2014.514139

High rates of HIV seroconversion in pregnant women and low reported levels of HIV testing among male partners in Southern Mozambique: Results from a mixed methods study. De Schacht C, Hoffman HJ, Mabunda N, Lucas C, Alons C, Madonela A, Vubil A, Ferreira O, Calú N, Santos IS, Jani IV, Guay L. High rates of HIV seroconversion in pregnant women and low reported levels of HIV testing among male partners in Southern Mozambique: Results from a mixed methods study. PLOS ONE. 2014;9(12). doi:10.1371/journal.pone.0115014

Association between financial dependence and tobacco use among young adults.
Stalgaitis C, Rath J, Williams V, Hoffman, HJ. Association between financial dependence and tobacco use among young adults. Am J Health Behav. 2014; 38(6):850-859. doi: 10.5993/AJHB.38.6.7

Factors affecting length of stay in late preterm infants: A US national database study.
Aly H, Hoffman HJ, El-Dib M, Said L, Mohamed M. Factors affecting length of stay in late preterm infants: A US national database study. J Matern Fetal Neonatal Med. 2014. doi:10.3109/14767058.2014.927428

Initial response to chemotherapy, not delay in diagnosis, predicts overall survival in inflammatory breast cancer cases.
Hoffman HJ, Khan A, Ajmera KM, Zolfaghari L, Schendfeld JR, Levine PH. Initial response to chemotherapy, not delay in diagnosis, predicts overall survival in inflammatory breast cancer cases. Am J of Clin Oncol. 2014;37(4):315-321. doi: 10.1097/COC.0b013e318271b34b

High HIV incidence in post-partum period sustains vertical transmission in settings with generalized epidemics: a cohort study in Southern Mozambique. 
De Schacht C, Mabunda N, Ferreira Jr. OC, Ismael N, Calú N, Santos I, Hoffman HJ, Alons C, Guay L, Jani I. High HIV incidence in post-partum period sustains vertical transmission in settings with generalized epidemics: a cohort study in Southern Mozambique. J Int AIDS Soc. 2014;17(1):18808. doi: 10.7448/IAS.17.1.18808

Pediatric Early Warning Score at time of Emergency Department disposition is associated with Level of Care.
Breslin K, Marx J, Hoffman HJ, McBeth R, Pavuluri P. Pediatric Early Warning Score at time of Emergency Department disposition is associated with Level of Care. Pediatr Emerg Care. 2014;30:97-103. doi: 10.1097/PEC.0000000000000063

Hispanic Overweight and Obese Children: Thirty cases managed with standard WIC counseling or motivational interviewing. ICAN: Infant, Child, & Adolescent Nutrition. 
Ogu LC, Janakiram J, Hoffman HJ, McDonough L, Valencia AP, Mackey ER, Klein CJ. Hispanic Overweight and Obese Children: Thirty cases managed with standard WIC counseling or motivational interviewing. ICAN: Infant, Child, & Adolescent Nutrition. 2014;6:35-43. doi: 10.1177/1941406413510175.

Neck and waist circumference biomarkers of cardiovascular risk in a cohort of predominantly African-American college students: A preliminary study.
Arnold TJ, Schweitzer AL, Hoffman HJ, Onyewu C, Hurtado ME, Hoffman E, Klein CJ. Neck and waist circumference biomarkers of cardiovascular risk in a cohort of predominantly African-American college students: A preliminary study. J Acad Nutr Diet. 2014;114:107-116. doi:10.1016/j.jand.2013.07.005

Predictors of sustained reduction in energy and fat intake in the Diabetes Prevention Program Outcomes Study (DPPOS) Intensive Lifestyle Intervention. 
Davis NJ, Ma Y, Delahanty LM, Hoffman HJ, Mayer-Davis E, Franks PW, Saudek C, Brown-Friday J, Isonaga M, Kriska AM, Venditti EM, and Wylie-Rosett J. Predictors of sustained reduction in energy and fat intake in the Diabetes Prevention Program Outcomes Study (DPPOS) Intensive Lifestyle Intervention. J Acad Nutr Diet. 2013;113(11):1455-1464.

Analyses of Radiation and Mesothelioma in the US Transuranium and Uranium Registries.
Gibb H, Fulcher K, Nagarajan S, McCord S, Fallahian NA, Hoffman HJ, Haver C, Tolmachev S. Analyses of Radiation and Mesothelioma in the US Transuranium and Uranium Registries. Am J Public Health. 2013;103(4):710-716. doi: 10.2105/AJPH.2012.300928

Progress Realized: Trends in HIV-1 Viral Load and CD4 Cell Count in a Tertiary-Care Center from 1999 through 2011.
Gale HB, Rodriguez MD, Hoffman HJ, Benator DA, Gordin FM, Labriola AM, Kan VL. Progress Realized: Trends in HIV-1 Viral Load and CD4 Cell Count in a Tertiary-Care Center from 1999 through 2011. PLoS One. 2013;8(2):e56845. doi:10.1371/journal.pone.0056845

Is Frequent CD4+ T-Lymphocyte Count Monitoring Necessary for Persons with Counts >300 cells/µL and HIV-1 Viral Suppression?
Gale HB, Gitterman S, Hoffman HJ, Gordin FM, Benator DA, Labriola AM, Kan VL. Is Frequent CD4+ T-Lymphocyte Count Monitoring Necessary for Persons with Counts >300 cells/µL and HIV-1 Viral Suppression? Clin Infect Dis. 2013;56(9):1340-1343. doi: 10.1093/cid/cit004

Relative incidence of inherited white matter disorders in childhood to acquired pediatric demyelinating disorders.
Vanderver A, Hussey H, Schmidt JL, Pastor W, and Hoffman HJ. Relative incidence of inherited white matter disorders in childhood to acquired pediatric demyelinating disorders. Semin Pediatr Neurol. 2012;19(4):219-223. http://dx.doi.org/10.1016/j.spen.2012.10.001

Patient navigation significantly reduces delays in breast cancer diagnosis in the District of Columbia.
Hoffman HJ, LaVerda NL, Young HA, Levine PH, Alexander LM, Brem R, Caicedo L, Eng-Wong J, Frederick W, Funderburk W, Huerta E, Swain S, Patierno SR. Patient navigation significantly reduces delays in breast cancer diagnosis in the District of Columbia. Cancer Epidemiol Biomarkers Prev. 2012;21(10):1655-63. doi: 10.1158/1055-9965.EPI-12-0479

Introduction of Rapid Syphilis Testing within Prevention of Vertical Transmission of HIV Programs in Uganda and Zambia: A field acceptability and feasibility study. 
Strasser S, Bitarakwate E, Gill M, Hoffman HJ, Musana O, Phiri A, Shelley K, Sripipatana T, Ncube AT, and Chintu N. Introduction of Rapid Syphilis Testing within Prevention of Vertical Transmission of HIV Programs in Uganda and Zambia: A field acceptability and feasibility study. J Acquir Immune Defic Syndr. 2012;61(3):e40-e46. doi: 10.1097/QAI.0b013e318267bc94

Analysis of combined data from heterogeneous study designs: an applied example from the patient navigation research program. 
Roetzheim RG, Freund KM, Corle DK, Murray DM, Snyder FR, Kronman AC, Jean-Pierre P, Raich PC, Holden AE, Darnell JS, Warren-Mears V, Patierno S; PNRP Design and Analysis Committee for the Patient Navigation Research Program Investigators. (Hoffman HJ as a member of the PNRP Design and Analysis Committee) Analysis of combined data from heterogeneous study designs: an applied example from the patient navigation research program. Clin Trials. 2012;9(2):176-87. doi: 10.1177/1740774511433284

Evaluation of Lymphangiogenic Factors, Vascular Endothelial Growth Factor D and E-Cadherin in Distinguishing Inflammatory From Locally Advanced Breast Cancer.
Levine PH, Portera CC, Hoffman HJ, Yang SX, Takikita M, Dong Q, Hewitt SM, Swain SM. Evaluation of Lymphangiogenic Factors, Vascular Endothelial Growth Factor D and E-Cadherin in Distinguishing Inflammatory From Locally Advanced Breast Cancer. Clin Breast Cancer. 2012;12(4):232-239. doi: 10.1016/j.clbc.2012.04.005

Provision of Services and Care for HIV-Exposed Infants: A comparison of Maternal and Child Health (MCH) Clinic and HIV Comprehensive Care Clinic (CCC) models.
Ong’ech J, Hoffman HJ, Kose J, Audo M, Matu L, Savosnick P, and Guay L. Provision of Services and Care for HIV-Exposed Infants: A comparison of Maternal and Child Health (MCH) Clinic and HIV Comprehensive Care Clinic (CCC) models. J Acquir Immune Defic Syndr. 2012;61(1):83-9. doi: 10.1097/QAI.0b013e31825bd842

Insulin regimen-associated differences in diets of preadolescents with type 1 diabetes. 
Klein CJ, Bernhard ME, Hoffman HJ, Cogen FR, and Streisand R. Insulin regimen-associated differences in diets of preadolescents with type 1 diabetes. The Digest. 2012;47(2):1-6. doi:10.1016/j.jneb.2011.03.005

Estimation of Multiple Trace Metal Water Contaminants In the Presence of Left-Censored and Missing Data.
Hoffman HJ and Johnson RE. Estimation of Multiple Trace Metal Water Contaminants In the Presence of Left-Censored and Missing Data. JES. 2011;2(2):1-16.

Having health insurance does not eliminate race/ethnicity-associated delays in breast cancer diagnosis in the District of Columbia.
Hoffman, HJ, LaVerda NL, Levine PH, Young HA, Alexander LM, Patierno SR, and the District of Columbia Citywide Patient Navigator Research Program Research Group. Having health insurance does not eliminate race/ethnicity-associated delays in breast cancer diagnosis in the District of Columbia. Cancer. 2011;117(16):3824-32. doi: 10.1002/cncr.25970

Biologic Implications from an Epidemiologic Study of Chromate Production Workers. 
Gibb H, Hoffman HJ, and Haver C. Biologic Implications from an Epidemiologic Study of Chromate Production Workers. Open Epidemiol J. 2011;4:54-59. doi: 10.2174/1874297101104010054

Improved Detection of Incident HIV Infection and Uptake of PMTCT Services in Labor and Delivery in a High HIV Prevalence Setting.
Kieffer, MP, Nhlabatsi B, Mahdi M, Hoffman HJ, Kudiabor K, and Wilfert CM. Improved Detection of Incident HIV Infection and Uptake of PMTCT Services in Labor and Delivery in a High HIV Prevalence Setting. J Acquir Immune Defic Syndr. 2011;57(4):e85-e91. doi: 10.1097/QAI.0b013e31821acc6e

Energy Prediction Equations Are Inadequate for Obese Hispanic Youth.
Klein CJ, Villavicencio SA, Schweitzer A, Bethepu JS, Hoffman HJ, and Mirza NM. Energy Prediction Equations Are Inadequate for Obese Hispanic Youth. J Am Diet Assoc. 2011;111(8):1204-10. doi:10.1016/j.jada.2011.05.010

Relation of Vitamin D Level to Maximal Oxygen Uptake in Adults.
Ardestani A, Parker B, Mathur S, Clarkson P, Pescatello LS, Hoffman HJ, Polk DM, and Thompson PD. Relation of Vitamin D Level to Maximal Oxygen Uptake in Adults. Am J Cardiol. 2011;107(8):1246-9. doi: 10.1016/j.amjcard.2010.12.022

Obesity and Outcomes Among Patients With Established Atrial Fibrillation.
Ardestani A, Hoffman HJ, and Cooper HA. Obesity and Outcomes Among Patients With Established Atrial Fibrillation. Am J Cardiol. 2010;106(3):369-73. doi: 10.1016/j.amjcard.2010.03.036

Impact of race and health insurance on delays in breast cancer diagnosis and treatment in the District of Columbia.
Hoffman, H.J., P.H. Levine, S.R. Patierno, H.A. Young, L.M. Alexander, and N.L. LaVerda. Impact of race and health insurance on delays in breast cancer diagnosis and treatment in the District of Columbia [abstract]. In: Proceedings of the 101st Annual Meeting of the American Association for Cancer Research; 2010 Apr 17-21; Washington, DC. Philadelphia (PA): AACR; 2010. Abstract nr 865.

Evaluating the case definition of inflammatory breast cancer
Hoffman, H.J., C.Veneroso, L.Zolfaghari, H.A. Young, and P.H. Levine. Evaluating the case definition of inflammatory breast cancer [abstract]. In: Proceedings of the 101st Annual Meeting of the American Association for Cancer Research; 2010 Apr 17-21; Washington, DC. Philadelphia (PA): AACR; 2010. Abstract nr 889.

Network patient navigation: An integrative, longitudinal model to reduce breast cancer disparities
Patierno, S.R., N.L. LaVerda, L.M. Alexander, P.H. Levine, H.A. Young, and H.J. Hoffman. Network patient navigation: An integrative, longitudinal model to reduce breast cancer disparities [abstract]. In: Proceedings of the 101st Annual Meeting of the American Association for Cancer Research; 2010 Apr 17-21; Washington, DC. Philadelphia (PA): AACR; 2010. Abstract nr 862.

Obesity and clinical outcomes in the atrial fibrillation follow-up investigation of rhythm management trial
Ardestani, A., H.J. Hoffman, and H.A. Cooper. Obesity and clinical outcomes in the atrial fibrillation follow-up investigation of rhythm management trial [abstract]. In: Proceedings of the Joint Conference - 50th Cardiovascular Disease Epidemiology and Prevention-and-Nutrition, Physical Activity and Metabolism Conference; 2010 Mar 2-5; San Francisco, CA. Abstract nr P155.

Repeat HIV testing in labor and delivery as a standard of care increases ARV provision for women who seroconvert during pregnancy
Mary Pat Kieffer, H.J. Hoffman, B. Nlabhatsi, M. Mahdi, K. Kudiabor, C. Wilfert, V. Lukhele, A. Nakato-Waligo, and N. Maseko. Repeat HIV testing in labor and delivery as a standard of care increases ARV provision for women who seroconvert during pregnancy. [abstract]. In: Proceedings of the 17th Conference on Retroviruses and Opportunistic Infections; 2010 Feb 16-19; San Francisco, CA. CROI; 2010. Abstract nr 156.

Obesity and outcomes among patients with established atrial fibrillation.
Ardestani, A., H.J. Hoffman, and H.A. Cooper. (2010). Obesity and outcomes among patients with established atrial fibrillation. Am J Cardiol. 2010;106(3):369-73. doi: 10.1016/j.amjcard.2010.03.036.

Longitudinal Network Patient Navigation: Development of a city-wide integrative model to reduce breast cancer disparities in Washington, DC.
Patierno, S.R., N.L. LaVerda, L.M. Alexander, P.H. Levine, H.A Young, and H.J. Hoffman. (2010). Longitudinal Network Patient Navigation: Development of a city-wide integrative model to reduce breast cancer disparities in Washington, DC. Oncology Issues 25(2), 28-35.

Delay in treatment does not predict outcome in inflammatory breast cancer
Levine, P.H., J. Schenfeld, H.J. Hoffman, and H.A. Young. Delay in treatment does not predict outcome in inflammatory breast cancer [abstract]. In: Proceedings of the 32nd Annual San Antonio Breast Cancer Symposium; 2009 Dec 9-13; San Antonio, TX. SABCS; 2009. Abstract nr 2012.

Ten Year Follow-up of Diabetes Incidence and Weight Loss in the Diabetes Prevention Program Outcomes Study.
Knowler WC, Fowler SE, Hamman RF, Hoffman HJ, Christophi C, Brenneman AT, Brown J, Goldberg R, Venditti E, and Nathan DM. Ten Year Follow-up of Diabetes Incidence and Weight Loss in the Diabetes Prevention Program Outcomes Study. The Lancet 2009; 374(9702), 1677-1686.

Hookworm, A. lumbricoides infection and polyparasitism associated with poor cognitive performance in Brazilian schoolchildren.
Jardim-Botelho A, Raff S, Ávila R, Hoffman HJ, Diemert DJ, Corrêa-Oliveira R, Bethony JM, Gazzinelli F. Hookworm, A. lumbricoides infection and polyparasitism associated with poor cognitive performance in Brazilian schoolchildren. Tropical Medicine & International Health 2008; 13(8): 994-1004.

Alcohol withdrawal pharmacotherapy for inpatients with medical comorbidity.
Weaver, M.F., H.J. Hoffman, R.E. Johnson, and K. Mauck. (2006). Alcohol withdrawal pharmacotherapy for inpatients with medical comorbidity. Journal of Addictive Diseases 25(2), 17-24.

Diagnosis of lower extremity deep vein thrombosis in outpatients with musculoskeletal disorders: A national survey study of physical therapists.
Riddle DL, Hillner BE, Wells PS, Johnson RE, Hoffman HJ, Zuelzer WA. Diagnosis of lower extremity deep vein thrombosis in outpatients with musculoskeletal disorders: A national survey study of physical therapists. Phys Ther 2004; 84(8):729-36.

Estimation in the presence of non-detectables: Imputation and maximum-likelihood approach with left-censoring.
Johnson RE, Hoffman HJ. Estimation in the presence of non-detectables: Imputation and maximum-likelihood approach with left-censoring. ASA Proceedings of the Joint Statistical Meetings of the American Statistical Association; 2004 Alexandria, Virginia. p. 373-7.