title: Spatial bridging in a network of drug-using male sex workers.
abstract: This study sought to determine whether drug-using male sex workers (MSWs) spatially bridge sexual networks across cities and to determine whether the behaviors of MSWs who bridge differ from the behaviors of those who do not. Data were collected from 42 MSWs in Houston, Texas, between May 2003 and February 2004. Spatial bridging was defined as having traded sex for money in another city before traveling to and trading in Houston. Cities bridged by MSWs were geographically plotted and were primarily located in the Gulf Coast and in Florida. Slightly less than half of MSWs were identified as spatially bridging from one city to another. A significantly higher proportion of MSWs who bridged cities were homosexual (55% vs. 23%) and HIV positive (31% vs. 5%). Those who bridged cities used marijuana and injected drugs more frequently and had significantly more male sex partners than MSWs who did not bridge cities. Despite the small sample size, this study found that many drug-using MSWs spatially bridge sexual networks in cities where they trade sex for money.
authors.affiliation: University of Texas School of Public Health at Houston, San Antonio Regional Campus, 7703 Floyd Curl Drive, MC 7976, San Antonio, TX 78284-7976, USA. mwilliams@sph.uth.tmc.edu
authors.forename: Mark L
authors.initials: ML
authors.lastname: Williams
authors.forename: John
authors.initials: J
authors.lastname: Atkinson
authors.forename: Alden
authors.initials: A
authors.lastname: Klovdahl
authors.forename: Michael W
authors.initials: MW
authors.lastname: Ross
authors.forename: Sandra
authors.initials: S
authors.lastname: Timpson
mesh_terms: D000328:Adult; D015658:HIV Infections / Q000150:complications / Q000453:epidemiology*; D006703:Ill-Housed Persons; D006801:Humans; D008297:Male; D008875:Middle Aged; D011157:Population Dynamics; D012309:Risk-Taking; D011477:Sex Work; D012747:Sexual Partners; D012959:Socioeconomic Factors; D019966:Substance-Related Disorders / Q000150:complications / Q000453:epidemiology; D014195:Travel / Q000706:statistics & numerical data*; D014505:Urban Population
references.citation: AIDS Educ Prev. 1995;7(5 Suppl):24-35
references.pmid: 8664095
references.citation: Am J Public Health. 1999 Jun;89(6):825-33
references.pmid: 10358670
references.citation: Int J STD AIDS. 1997 Oct;8(10):629-35
references.pmid: 9310222
references.citation: J Acquir Immune Defic Syndr Hum Retrovirol. 1998 Apr 1;17(4):361-7
references.pmid: 9525438
references.citation: AIDS. 1998 Jul 9;12(10):1119-28
references.pmid: 9677160
references.citation: J Biosoc Sci. 1998 Jan;30(1):63-83
references.pmid: 9746814
references.citation: Am J Public Health. 1999 Mar;89(3):369-73
references.pmid: 10076487
references.citation: AIDS. 2000 Feb 18;14(3):303-11
references.pmid: 10716507
references.citation: Sex Transm Dis. 1999 May;26(5):250-61
references.pmid: 10333277
references.citation: J Acquir Immune Defic Syndr. 2000 Jun 1;24(2):162-7
references.pmid: 10935692
references.citation: Sex Transm Dis. 2001 Jan;28(1):14-24
references.pmid: 11196040
references.citation: AIDS Care. 2001 Oct;13(5):579-94
references.pmid: 11571005
references.citation: Sex Transm Infect. 2001 Dec;77(6):433-5
references.pmid: 11714942
references.citation: Sex Transm Dis. 2002 Jan;29(1):20-4
references.pmid: 11773874
references.citation: AIDS. 2002 Jun 14;16(9):1271-7
references.pmid: 12045493
references.citation: AIDS. 2003 Jun 13;17(9):1402-4
references.pmid: 12799567
references.citation: Sex Transm Dis. 2003 Jul;30(7):571-4
references.pmid: 12838086
references.citation: Sex Transm Dis. 2003 Oct;30(10):742-9
references.pmid: 14520171
references.citation: Soc Sci Med. 1985;21(11):1203-16
references.pmid: 3006260
references.citation: Sex Transm Dis. 1988 Apr-Jun;15(2):88-92
references.pmid: 3399999
references.citation: Soc Sci Med. 1991;32(5):535-9
references.pmid: 2017720
references.citation: Soc Sci Med. 1991;32(7):847-52
references.pmid: 2028280
references.citation: Proc Biol Sci. 1991 Sep 23;245(1314):187-92
references.pmid: 1684043
references.citation: Am J Public Health. 1993 Jan;83(1):79-83
references.pmid: 8417612
references.citation: Am J Public Health. 1993 Dec;83(12):1757-9
references.pmid: 8259812
references.citation: Int J STD AIDS. 1994 Mar-Apr;5(2):137-8
references.pmid: 8031917
references.citation: AIDS Educ Prev. 1996 Jun;8(3):205-25
references.pmid: 8806950