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Research

Prevalence and predictors of facing a legal obligation to disclose HIV serostatus to sexual partners among people living with HIV who inject drugs in a Canadian setting:a cross-sectional analysis

Sophie Patterson, Angela Kaida, Paul Nguyen, Sabina Dobrer, Gina Ogilvie, Robert Hogg, Thomas Kerr, Julio Montaner, Evan Wood and M.-J. Milloy
April 29, 2016 4 (2) E169-E176; DOI: https://doi.org/10.9778/cmajo.20150106
Sophie Patterson
Faculty of Health Sciences (Patterson, Kaida, Hogg), Simon Fraser University, Burnaby; British Columbia Centre for Excellence in HIV/AIDS (Patterson, Nguyen, Dobrer, Hogg, Kerr, Montaner, Wood, Milloy), St. Paul's Hospital; BC Women's Hospital and Health Centre (Ogilvie); Faculty of Medicine, University of British Columbia, Vancouver, BC.
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Angela Kaida
Faculty of Health Sciences (Patterson, Kaida, Hogg), Simon Fraser University, Burnaby; British Columbia Centre for Excellence in HIV/AIDS (Patterson, Nguyen, Dobrer, Hogg, Kerr, Montaner, Wood, Milloy), St. Paul's Hospital; BC Women's Hospital and Health Centre (Ogilvie); Faculty of Medicine, University of British Columbia, Vancouver, BC.
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Paul Nguyen
Faculty of Health Sciences (Patterson, Kaida, Hogg), Simon Fraser University, Burnaby; British Columbia Centre for Excellence in HIV/AIDS (Patterson, Nguyen, Dobrer, Hogg, Kerr, Montaner, Wood, Milloy), St. Paul's Hospital; BC Women's Hospital and Health Centre (Ogilvie); Faculty of Medicine, University of British Columbia, Vancouver, BC.
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Sabina Dobrer
Faculty of Health Sciences (Patterson, Kaida, Hogg), Simon Fraser University, Burnaby; British Columbia Centre for Excellence in HIV/AIDS (Patterson, Nguyen, Dobrer, Hogg, Kerr, Montaner, Wood, Milloy), St. Paul's Hospital; BC Women's Hospital and Health Centre (Ogilvie); Faculty of Medicine, University of British Columbia, Vancouver, BC.
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Gina Ogilvie
Faculty of Health Sciences (Patterson, Kaida, Hogg), Simon Fraser University, Burnaby; British Columbia Centre for Excellence in HIV/AIDS (Patterson, Nguyen, Dobrer, Hogg, Kerr, Montaner, Wood, Milloy), St. Paul's Hospital; BC Women's Hospital and Health Centre (Ogilvie); Faculty of Medicine, University of British Columbia, Vancouver, BC.
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Robert Hogg
Faculty of Health Sciences (Patterson, Kaida, Hogg), Simon Fraser University, Burnaby; British Columbia Centre for Excellence in HIV/AIDS (Patterson, Nguyen, Dobrer, Hogg, Kerr, Montaner, Wood, Milloy), St. Paul's Hospital; BC Women's Hospital and Health Centre (Ogilvie); Faculty of Medicine, University of British Columbia, Vancouver, BC.
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Thomas Kerr
Faculty of Health Sciences (Patterson, Kaida, Hogg), Simon Fraser University, Burnaby; British Columbia Centre for Excellence in HIV/AIDS (Patterson, Nguyen, Dobrer, Hogg, Kerr, Montaner, Wood, Milloy), St. Paul's Hospital; BC Women's Hospital and Health Centre (Ogilvie); Faculty of Medicine, University of British Columbia, Vancouver, BC.
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Julio Montaner
Faculty of Health Sciences (Patterson, Kaida, Hogg), Simon Fraser University, Burnaby; British Columbia Centre for Excellence in HIV/AIDS (Patterson, Nguyen, Dobrer, Hogg, Kerr, Montaner, Wood, Milloy), St. Paul's Hospital; BC Women's Hospital and Health Centre (Ogilvie); Faculty of Medicine, University of British Columbia, Vancouver, BC.
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Evan Wood
Faculty of Health Sciences (Patterson, Kaida, Hogg), Simon Fraser University, Burnaby; British Columbia Centre for Excellence in HIV/AIDS (Patterson, Nguyen, Dobrer, Hogg, Kerr, Montaner, Wood, Milloy), St. Paul's Hospital; BC Women's Hospital and Health Centre (Ogilvie); Faculty of Medicine, University of British Columbia, Vancouver, BC.
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M.-J. Milloy
Faculty of Health Sciences (Patterson, Kaida, Hogg), Simon Fraser University, Burnaby; British Columbia Centre for Excellence in HIV/AIDS (Patterson, Nguyen, Dobrer, Hogg, Kerr, Montaner, Wood, Milloy), St. Paul's Hospital; BC Women's Hospital and Health Centre (Ogilvie); Faculty of Medicine, University of British Columbia, Vancouver, BC.
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    Exclusion criteria applied to reach final analytic sample.

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    Table 1: Characteristics of 176 people living with HIV who inject drugs, stratified by satisfaction of the specified legal test for HIV nondisclosure
    CharacteristicNo. (%)*
    All participants (n = 176)Satisfy legal test (n = 99)Do not satisfy legal test 
    (n = 77)
    p value
    Age, yr
    Median (interquartile range)45 (40-51)46 (41-52)44 (39-50)0.07
    White ethnicity
    Yes93 (53)49 (49)44 (57)0.31
    No83 (47)50 (51)33 (43)
    Female sex
    Yes77 (44)35 (35)42 (55)0.01
    No99 (56)64 (65)35 (45)
    Homeless†
    Yes21 (12)9 (9)12 (16)0.2
    No155 (88)90 (91)65 (84)
    Employed†
    Yes44 (25)25 (25)19 (25)0.9
    No132 (75)74 (75)58 (75)
    Incarcerated†
    Yes10 (6)4 (4)6 (8)0.3
    No166 (94)95 (96)71 (92)
    Illicit drug use†‡
    Yes162 (92)93 (94)69 (90)0.4
    No14 (8)6 (6)8 (10)
    Injection drug use†
    Yes117 (66)66 (67)51 (66)0.9
    No59 (34)33 (33)26 (34)
    ≥ 1 d antiretroviral therapy dispensation†
    Yes168 (95)98 (99)70 (91)0.02
    No8 (5)1 (1)7 (9)
    Engaged in sex work†
    Yes29 (16)19 (19)10 (13)0.3
    No147 (84)80 (81)67 (87)
    Currently in a stable relationship
    Yes74 (42)31 (31)43 (56)0.01
    No102 (58)68 (69)34 (44)
    Number of sexual partners†§
    1124 (70)61 (62)63 (82)0.01
    > 152 (30)38 (38)14 (18)

    *Unless otherwise indicated.

    †In the 6 months before the interview.

    ‡Excluding cannabis use.

    §Median imputation was used to recode missing data for 10 participants.

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      Table 2: Patterns of condom use stratified by plasma HIV-1 RNA viral load (< 1500 v. ≥ 1500 c/mL) among 176 male and female people living with HIV who inject drugs
      Participants' condom use, %Viral load
      < 1500 c/mL, n (%)
      Viral load
      ≥ 1500 c/mL, n (%)
      All (n = 176)
      10099 (56)7 (4)
      < 10067 (38)3 (2)
      Male (n = 99)
      10064 (65)2 (2)
      < 10033 (33)0 (0)
      Female (n = 77)
      10035 (45)5 (7)
      < 10034 (44)3 (4)
      • View popup
      Table 3: Bivariable and multivariable logistic regression analyses of factors associated with facing a legal obligation to disclose HIV serostatus to sexual partners among 176 people living with HIV who inject drugs
      CharacteristicBivariableMultivariable
      OR (95% CI)Adjusted OR (95% CI)
      Age
      Per year increase0.96 (0.93-1.00)
      Sex
      Female vs. male2.19 (1.19-4.04)2.19 (1.13-4.24)
      Homeless
      Yes v. no1.85 (0.74-4.64)2.50 (0.93-6.76)
      Incarcerated*
      Yes v. no2.01 (0.55-7.38)
      Engaged in sex work*
      Yes v. no0.63 (0.27-1.44)
      Currently in a stable relationship
      Yes v. no2.77 (1.49-5.15)2.00 (1.03-3.91)
      No. of sexual partners*‡
      1 v. > 12.80 (1.38-5.68)2.68 (1.24-5.78)

      Note: CI = confidence interval, OR = odds ratio.

      *Within the 6 months before interview.

      ‡Median imputation was used to recode missing data for 10 participants.

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      Prevalence and predictors of facing a legal obligation to disclose HIV serostatus to sexual partners among people living with HIV who inject drugs in a Canadian setting:a cross-sectional analysis
      Sophie Patterson, Angela Kaida, Paul Nguyen, Sabina Dobrer, Gina Ogilvie, Robert Hogg, Thomas Kerr, Julio Montaner, Evan Wood, M.-J. Milloy
      Apr 2016, 4 (2) E169-E176; DOI: 10.9778/cmajo.20150106

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      Prevalence and predictors of facing a legal obligation to disclose HIV serostatus to sexual partners among people living with HIV who inject drugs in a Canadian setting:a cross-sectional analysis
      Sophie Patterson, Angela Kaida, Paul Nguyen, Sabina Dobrer, Gina Ogilvie, Robert Hogg, Thomas Kerr, Julio Montaner, Evan Wood, M.-J. Milloy
      Apr 2016, 4 (2) E169-E176; DOI: 10.9778/cmajo.20150106
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