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Increases in CD4 T-cell count at antiretroviral therapy initiation among HIV-positive illicit drug users during a treatment-as-prevention initiative in Canada

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Increases in CD4 T-cell count at antiretroviral therapy initiation among HIV-positive illicit drug users during a treatment-as-prevention initiative in Canada. / Tran, M; Wood, E; Kerr, T et al.
In: Antiviral therapy, Vol. 22, 24.02.2017, p. 403-411.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Tran, M, Wood, E, Kerr, T, Patterson, S, Bangsberg, D, Dong, H, Guillemi, S, Montaner, JS & Milloy, MJ 2017, 'Increases in CD4 T-cell count at antiretroviral therapy initiation among HIV-positive illicit drug users during a treatment-as-prevention initiative in Canada', Antiviral therapy, vol. 22, pp. 403-411. https://doi.org/10.3851/imp3145

APA

Tran, M., Wood, E., Kerr, T., Patterson, S., Bangsberg, D., Dong, H., Guillemi, S., Montaner, JS., & Milloy, MJ. (2017). Increases in CD4 T-cell count at antiretroviral therapy initiation among HIV-positive illicit drug users during a treatment-as-prevention initiative in Canada. Antiviral therapy, 22, 403-411. https://doi.org/10.3851/imp3145

Vancouver

Tran M, Wood E, Kerr T, Patterson S, Bangsberg D, Dong H et al. Increases in CD4 T-cell count at antiretroviral therapy initiation among HIV-positive illicit drug users during a treatment-as-prevention initiative in Canada. Antiviral therapy. 2017 Feb 24;22:403-411. doi: 10.3851/imp3145

Author

Tran, M ; Wood, E ; Kerr, T et al. / Increases in CD4 T-cell count at antiretroviral therapy initiation among HIV-positive illicit drug users during a treatment-as-prevention initiative in Canada. In: Antiviral therapy. 2017 ; Vol. 22. pp. 403-411.

Bibtex

@article{a46f0e32c6974b45bd0a47945690702f,
title = "Increases in CD4 T-cell count at antiretroviral therapy initiation among HIV-positive illicit drug users during a treatment-as-prevention initiative in Canada",
abstract = "Background: Although treatment-as-prevention (TasP) efforts are a new cornerstone of efforts to respond to the HIV/AIDS pandemic, their effects among people who use drugs (PWUD) have not been fully evaluated. This study characterizes temporal trends in CD4+ T-cell (CD4) count at ART initiation and rates of virological response among HIV-positive PWUD during a TasP initiative. Methods: We used data on individuals initiating ART within a prospective cohort of PWUD linked to comprehensive clinical records. Using multivariable linear regression, we evaluated the relationship between CD4 count prior to ART initiation and year of initiation and time to HIV-1 RNA viral load <50 copies/ml following initiation using Cox proportional hazards modelling. Results: Among 355 individuals, CD4 count at initiation rose from 130 to 330 cells/ml from 2005 to 2013. In multivariable regression, initiation year was significantly associated with higher CD4 count (β=29.5 cells per year, 95% CI 21.0, 37.9). Initiating ART at higher CD4 counts was significantly associated with optimal viral response (adjusted hazard ratio =1.13 per 100 cells/ml increase, 95% CI 1.05, 1.22). Conclusions: Increases in CD4 cell count at initiation over time was associated with superior virological response, consistent with the aims of the TasP initiative.",
author = "M Tran and E Wood and T Kerr and S Patterson and D Bangsberg and H Dong and S Guillemi and JS Montaner and MJ Milloy",
year = "2017",
month = feb,
day = "24",
doi = "10.3851/imp3145",
language = "English",
volume = "22",
pages = "403--411",
journal = "Antiviral therapy",
issn = "2040-2058",
publisher = "SAGE Publications",

}

RIS

TY - JOUR

T1 - Increases in CD4 T-cell count at antiretroviral therapy initiation among HIV-positive illicit drug users during a treatment-as-prevention initiative in Canada

AU - Tran, M

AU - Wood, E

AU - Kerr, T

AU - Patterson, S

AU - Bangsberg, D

AU - Dong, H

AU - Guillemi, S

AU - Montaner, JS

AU - Milloy, MJ

PY - 2017/2/24

Y1 - 2017/2/24

N2 - Background: Although treatment-as-prevention (TasP) efforts are a new cornerstone of efforts to respond to the HIV/AIDS pandemic, their effects among people who use drugs (PWUD) have not been fully evaluated. This study characterizes temporal trends in CD4+ T-cell (CD4) count at ART initiation and rates of virological response among HIV-positive PWUD during a TasP initiative. Methods: We used data on individuals initiating ART within a prospective cohort of PWUD linked to comprehensive clinical records. Using multivariable linear regression, we evaluated the relationship between CD4 count prior to ART initiation and year of initiation and time to HIV-1 RNA viral load <50 copies/ml following initiation using Cox proportional hazards modelling. Results: Among 355 individuals, CD4 count at initiation rose from 130 to 330 cells/ml from 2005 to 2013. In multivariable regression, initiation year was significantly associated with higher CD4 count (β=29.5 cells per year, 95% CI 21.0, 37.9). Initiating ART at higher CD4 counts was significantly associated with optimal viral response (adjusted hazard ratio =1.13 per 100 cells/ml increase, 95% CI 1.05, 1.22). Conclusions: Increases in CD4 cell count at initiation over time was associated with superior virological response, consistent with the aims of the TasP initiative.

AB - Background: Although treatment-as-prevention (TasP) efforts are a new cornerstone of efforts to respond to the HIV/AIDS pandemic, their effects among people who use drugs (PWUD) have not been fully evaluated. This study characterizes temporal trends in CD4+ T-cell (CD4) count at ART initiation and rates of virological response among HIV-positive PWUD during a TasP initiative. Methods: We used data on individuals initiating ART within a prospective cohort of PWUD linked to comprehensive clinical records. Using multivariable linear regression, we evaluated the relationship between CD4 count prior to ART initiation and year of initiation and time to HIV-1 RNA viral load <50 copies/ml following initiation using Cox proportional hazards modelling. Results: Among 355 individuals, CD4 count at initiation rose from 130 to 330 cells/ml from 2005 to 2013. In multivariable regression, initiation year was significantly associated with higher CD4 count (β=29.5 cells per year, 95% CI 21.0, 37.9). Initiating ART at higher CD4 counts was significantly associated with optimal viral response (adjusted hazard ratio =1.13 per 100 cells/ml increase, 95% CI 1.05, 1.22). Conclusions: Increases in CD4 cell count at initiation over time was associated with superior virological response, consistent with the aims of the TasP initiative.

U2 - 10.3851/imp3145

DO - 10.3851/imp3145

M3 - Journal article

C2 - 28234234

VL - 22

SP - 403

EP - 411

JO - Antiviral therapy

JF - Antiviral therapy

SN - 2040-2058

ER -