HIGHLIGHTED PUBLICATIONS

Duncan DT, Kapadia F, Regan SD, Goedel WC, Levy MD, Barton S, Friedman SR, Halkitis PN.
Feasibility and Acceptability of Global Positioning System (GPS) Methods to Study the Spatial Contexts of Substance Use and Sexual Risk Behaviors Among Young Men who Have Sex with Men in New York City: A P18 Cohort Sub-study. PLoS ONE. 2016 Feb 26; 11(2): e0147520.

Purpose: The purpose of this study was to evaluate the feasibility and acceptability of using GPS methods to understand the spatial context of substance use and sexual risk behaviors among a sample of YMSM in New York City, a high-risk population.
Findings: Results from this pilot study demonstrate that utilizing GPS methods among YMSM is feasible and acceptable. GPS devices may be used in spatial epidemiology research in YMSM populations to understand place-based determinants of health such as substance use and sexual risk behaviors.
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Duncan DT, Rienti Jr. M, Kulldorff M, Aldstadt J, Castro MC, Frounfelker RL, Williams JH, Sorensen G, Johnson RM, Hemenway D, Williams DR.
Local spatial clustering in youths’ use of tobacco, alcohol, and marijuana in Boston.  American Journal of Drug and Alcohol Abuse. 2016 Jul; 42(4): 412-21.

Purpose: The purpose of this study was to examine spatial clustering of youth use of tobacco, alcohol, and marijuana.
Findings: Significant spatial clustering in youth tobacco use was found. Finding a significant cluster in the South Boston neighborhood provides reason for further investigation into neighborhood characteristics that may shape adolescents’ substance use behaviors. This type of research can be used to evaluate the underlying reasons behind spatial clustering of youth substance and to target local drug abuse prevention interventions and use.
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Duncan DT, Méline J, Kestens Y, Day K, Elbel B, Trasande L, Chaix B.
Walk score, transportation mode choice, and walking among French adults: a GPS, accelerometer, and mobility survey study.  International Journal of Environmental Research and Public Health. 2016; 13(6), 611.

Purpose: The purpose of this study is to examine associations at the trip level between Walk Score, transportation mode choice, and walking among Paris adults who were tracked with GPS receivers and accelerometers in the RECORD GPS Study.
Findings: Walkable neighborhoods were associated with increases in walking among adults in Paris, as documented at the trip level. Creating walkable neighborhoods (through neighborhood design increased commercial activity) may increase walking trips and, therefore, could be a relevant health promotion strategy to increase physical activity.
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Goedel WC, Reisner SL, Janssen AC, Poteat TC, Regan SD, Kreski N, Confident G, Duncan DT.
Acceptability and Feasibility of Using a Novel Geospatial Method to Measure Neighborhood Contexts and Mobility Among Transgender Women in New York City. Transgender Health. in press.

Purpose: The purpose of this study assesses the acceptability and feasibility of a weeklong GPS protocol among a sample of transgender women in New York City.
Findings: This pilot study demonstrates that the GPS methods are both acceptable and feasible among this sample of transgender women. GPS devices may be used in research among transgender women to understand neighborhood determinants of HIV and other STIs.
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Hambrick HR, Park SH, Goedel WC, Morganstein JG, Kreski NT, Mgbako O, Duncan DT.
Rectal Douching Among Men Who Have Sex with Men in Paris: Implications for HIV/STI Risk Behaviors and Rectal Microbicide Development. AIDS & Behavior. in press.

Purpose: The purpose of this study is to explore rectal douching and its association with condomless receptive anal intercourse, group sex, rates of HIV and other STIs, and likelihood to use rectal microbicide gels.
Findings: Rectal douching is common among MSM, particularly those who practice condomless receptive anal intercourse, and rectal microbicide gels may be an acceptable mode of HIV prevention for MSM who use rectal douches.
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SELECTED PUBLICATIONS

Al-Bayan M, Islam N, Edwards S, Duncan DT.
Neighborhood Perceptions and Hypertension Among Low-Income Black Women: A Qualitative Study.
BMC Public Health. 2016 Oct 12; 16(1): 1075.
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Chaix B, Duncan D, Vallée J, Vernez-Moudon A, Benmarhnia T, Kestens Y
The “residential” effect fallacy in neighborhood and health studies: formal definition, empirical identification, and correction.
Epidemiology. in press.
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Chaix B, Kestens Y, Duncan DT, Brondeel R, Méline J, El Aarbaoui T, Pannier B, Merlo J.
A GPS-based methodology to analyze environment–health associations at the trip level: case-crossover analyses of built environment effects on walking.
American Journal of Epidemiology. 2016; 184(8): 579-589.
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Cole H, Duncan DT, Ogedegbe G, Bennett S, Ravenell J.
Neighborhood Socioeconomic Disadvantage, Neighborhood Racial Segregation and Hypertension Stage, Awareness, and Treatment among Hypertensive Black Men in New York City: Does Nativity Matter?
Journal of Racial and Ethnic Health Disparities. in press.
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Duncan DT, Aldstadt J, Whalen J, Melly SJ, Gortmaker SL.
Validation of Walk Score® for Estimating Neighborhood Walkability: An Analysis of Four US Metropolitan Areas
International Journal of Environmental Research and Public Health. 2011 Nov; 8(11): 4160-4179.
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Duncan DT, Castro MC, Gortmaker SL, Aldstadt J, Melly SJ, Bennett GG.
Racial Differences in the Built Environment—Body Mass Index Relationship? A Geospatial Analysis of Adolescents in Urban Neighborhoods.
International Journal of Health Geographics. 2012 Apr 26; 11(1): 11.
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Duncan DT, Hatzenbuehler ML.
Lesbian, Gay, Bisexual, and Transgender Hate Crimes and Suicidality Among a Population-Based Sample of Sexual-Minority Adolescents in Boston.
American Journal of Public Health. 2014 Feb; 104(2): 272-278.
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Duncan DT, Kapadia F, Halkitis PN.
Examination of Spatial Polygamy among Young Gay, Bisexual, and Other Men Who Have Sex with Men in New York City: The P18 Cohort Study.
International Journal of Environmental Research and Public Health. 2014 Aug 28; 11(9): 8962-8983.
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Duncan DT, Kapadia F, Kirchner TR, Goedel WC, Brady WJ, Halkitis PN.
Acceptability of Ecological Momentary Assessment Among Young Men who have Sex with Men.
Journal of LGBT Youth. in press.
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Duncan DT, Kawachi I, Subramanian SV, Aldstadt J, Melly SJ, Williams DR.
Examination of How Neighborhood Definition Influences Measurements of Youths’ Access to Tobacco Retailers: A Methodological Note on Spatial Misclassification.
American Journal of Epidemiology. 2014 Feb 1; 179(3): 373-381.
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Duncan DT, Kawachi I, White K, Williams DR.
The Geography of Recreational Open Space: Influence of Neighborhood Racial Composition and Neighborhood Poverty.
Journal of Urban Health. 2013 Aug; 90(4): 618-631.
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Duncan DT, Palamar JJ, and Williams, JH.
Perceived Neighborhood Illicit Drug Selling, Peer Illicit Drug Disapproval and Illicit Drug use among U.S. High School Seniors
Substance Abuse Treatment, Prevention and Policy. 2014 Sept 3; 9(1): 35.
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Duncan DT, Park SH, Goedel WC, Kreski N, Morganstein JG, Hambrick HR, Jean-Louis G, Chaix B.
Perceived Neighborhood Safety is Associated with Poor Sleep Health Among Gay, Bisexual and Other Men Who Have Sex with Men in Paris, France.
Journal of Urban Health. Jun 2017; 94(3):399-407.
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Duncan DT, Park SH, Schneider JA, Al-Ajlouni YA, Goedel WC, Elbel B, Morganstein JG, Ransome Y, Mayer KH.
Financial Hardship, Condomless Anal Intercourse and HIV Risk Among Men Who Have Sex with Men.
AIDS & Behavior. in press.
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Duncan DT, Regan SD, Shelley D, Day K, Ruff RR, Al-Bayan M, Elbel B.
Application of global positioning system methods for the study of obesity and hypertension risk among low-income housing residents in New York City: a spatial feasibility study.
Geospatial Health. 2014 Nov; 9(1): 57-70.
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Duncan DT, Regan SD.
Mapping Multi-Day GPS Data: A Cartographic Study in NYC.
Journal of Maps. 2016; 12(4): 668-670.
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Duncan DT, Ruff RR, Chaix B, Regan SD, Williams JH, Ravenell J, Bragg MA, Ogedegbe G, Elbel B.
Perceived Spatial Stigma, Body Mass Index and Blood Pressure: A Global Positioning System Study among Low-Income Housing Residents in New York City.
Geospatial Health. 2016; 11(399): 164-173. 
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Duncan DT, Sharifi M, Melly SJ, Marshall R, Sequist TD, Rifas-Shiman SL, Taveras EM.
Characteristics of Walkable Built Environments and BMI Z-Scores in Children: Evidence from a Large Electronic Health Record Database.
Environmental Health Perspectives. 2014 Dec; 122(12): 1359-65.
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Goedel WC, Duncan DT.
Geosocial-Networking App Usage Patterns of Gay, Bisexual, and Other Men Who Have Sex With Men: Survey Among Users of Grindr, A Mobile Dating App.
JMIR Public Health & Surveillance. 2015; 1(1):e4.
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Goedel WC, Halkitis PN, Greene RE, Duncan DT.
Correlates of Awareness of and Willingness to Use Pre-Exposure Prophylaxis (PrEP) in Gay, Bisexual, and Other Men Who Have Sex with Men Who Use Geosocial-Networking Smartphone Applications in New York City.
AIDS & Behavior. 2016 Jul; 20(7): 1435-42.
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Goedel WC, Mayer KH, Mimiaga MJ, Duncan DT.
Considerable Interest in Pre-Exposure Prophylaxis (PrEP) Uptake Among Men Who Have Sex with Men (MSM) Recruited from a Popular Geosocial-Networking Smartphone Application in London.
Global Public Health. in press.
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Goedel WC, Schneider JA, Hagen D, Duncan DT.
Serodiscussion, Perceived Seroconcordance, and Sexual Risk Behaviors Among Dyads of Men Who Have Sex with Men (MSM) Who Use Geosocial-Networking Smartphone Applications in London
Journal of the International Association of Providers of AIDS Care. 2017 May/Jun;16(3):233-238.
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Hickson DA, Truong NL, Smith-Bankhead N, Sturdevant N, Duncan DT, Schnorr J, Gipson JA, Mena LA.
Rationale, Design and Methods of the Ecological Study of Sexual Behaviors and HIV/STI among African American Men Who Have Sex with Men in the Southeastern United States (The MARI Study).
PLoS ONE. 2015 Dec 23;10(12):e0143823.
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Krebs P, Duncan DT.
Health App Use Among U.S. Mobile Phone Owners: A National Study.
JMIR Mhealth and Uhealth. 2015 Nov 4;3(4):e10.
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Piccolo RS, Duncan DT, Pearce N, McKinlay JB.
The role of neighborhood characteristics in racial/ethnic disparities in type 2 diabetes: Results from the Boston Community Health (BACH) Survey.
Social Science and Medicine. 2015; 130: 79-90.
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