| evidence for a sexually transmitted cofactor for aids-related kaposi's sarcoma in a cohort of homosexual men. | we examined factors associated with the subsequent development of aids-related kaposi's sarcoma in a cohort of 353 homosexual men infected with human immunodeficiency virus (hiv). cumulative incidence curves for the development of kaposi's sarcoma and opportunistic infection were stratified over a wide range of variables at enrollment, including those related to demographics, sexual behavior, illicit drug use, and medical history. we found no strong associations between any of these variables an ... | 1992 | 1591318 |
| hepatitis & hiv: prevalence of infection and changing attitudes toward infection control procedures in british columbia. | dental professionals attending the annual meeting of the college of dental surgeons of british columbia in june 1990 were involved in a survey to assess the prevalence of infection with hepatitis b, hepatitis c and human immunodeficiency viruses, the acceptance of vaccination for protection against hepatitis b virus, and the compliance with infection control guidelines. participation was voluntary and anonymous and required completion of a questionnaire and donation of a blood sample. four hundr ... | 1991 | 1747815 |
| an anonymous seroprevalence survey of hiv infection among pregnant women in british columbia and the yukon territory. | we performed an anonymous seroprevalence survey of human immunodeficiency virus (hiv) type 1 infection through hiv antibody testing of blood samples from 22,512 women aged 15 to 44 years receiving prenatal care in british columbia and the yukon territory from mar. 15 to sept. 30, 1989. of the samples six were confirmed to be hiv positive; this yielded a crude overall seroprevalence rate of 2.7 per 10,000 pregnant women (95% confidence interval [ci] 1.0 to 5.8). all of the positive samples were f ... | 1990 | 2224695 |
| the vancouver lymphadenopathy-aids study: 6. hiv seroconversion in a cohort of homosexual men. | in an ongoing prospective study of homosexual men conducted since november 1982 in vancouver, we identified 345 men who did not have antibody to human immunodeficiency virus (hiv) at the time of enrolment and for whom results of follow-up serologic testing were available. a total of 66 cases of seroconversion were documented among the 345 men between november 1982 and october 1985. methods of survival data analysis that take into account the varying durations of follow-up were used to study the ... | 1986 | 3022904 |
| a qualitative investigation into an hiv outbreak among injection drug users in vancouver, british columbia. | the proportion of injection drug users (idus) testing positive for human immunodeficiency virus (hiv) in british columbia has increased from 3 to 7% since january 1993 (patrick et al., 1997). we conducted a qualitative study as a first step in a case control investigation aimed at identifying risk factors associated with hiv seroconversion. sixteen subjects participated in in-depth interviews which were transcribed and analysed using grounded theory methods. three dominant themes emerged: addict ... | 1998 | 9828974 |
| secular trends in the survival of hiv-infected homosexual men in amsterdam and vancouver estimated from a death-included cd4-staged markov model. | the purpose of this study was to investigate secular trends in waiting times in cd4-based stages of human immunodeficiency virus (hiv) disease progression in two cohorts of homosexual men, one in vancouver and one in amsterdam. all hiv-positive men with two or more cd4 counts in their aids-free period between 1 january 1985 and 1 january 1997 were included in this study. data regarding clinical aids diagnoses (using the 1987 centers for disease control and prevention [cdc] aids case definition) ... | 2000 | 10869332 |
| prevalence and correlates of untreated human immunodeficiency virus type 1 infection among persons who have died in the era of modern antiretroviral therapy. | we evaluated all human immunodeficiency virus (hiv)-related deaths over the period 1 january 1995-31 december 2001 in a canadian province in which all hiv care and antiretroviral therapy are provided free of charge. persons who had received antiretroviral drugs before death were compared with those who had died without ever receiving hiv treatment, by fitting a logistic model. overall, 1239 deaths were attributed to hiv infection during the study period. of these, 406 (32.8%) occurred among pers ... | 2003 | 14551887 |
| similar sexual behaviors with casual partners among gay men with and without a regular partner. | we hypothesized that men in a relationship would engage in less risky sexual activity with their casual partners compared to men with only casual partners. | 2005 | 15729161 |
| hiv/aids: testing and risk behaviors among british columbia's rural aboriginal population. | over the last decade, there has been growing concern in the public health sector over the spread of human immunodeficiency virus (hiv) in canada's aboriginal population. however, there continues to be a general lack of hiv awareness and its risk factors in aboriginal communities. | 2006 | 17131969 |
| expanded access to highly active antiretroviral therapy: a potentially powerful strategy to curb the growth of the hiv epidemic. | we developed a mathematical model using a multiple source of infection framework to assess the potential effect of the expansion of highly active antiretroviral therapy (haart) coverage among those in medical need on the number of individuals testing newly positive for human immunodeficiency virus (hiv) and on related costs in british columbia, canada, over the next 25 years. the model was calibrated using retrospective data describing antiretroviral therapy utilization and individuals testing n ... | 2008 | 18498241 |
| an external evaluation of a peer-run outreach-based syringe exchange in vancouver, canada. | vancouver, canada has been the site of an epidemic of human immunodeficiency virus (hiv) amongst injection drug users (idu). in response, the vancouver area network of drug users (vandu) initiated a peer-run outreach-based syringe exchange programme (sep) called the alley patrol. we conducted an external evaluation of this programme, using data obtained from the vancouver injection drug users study (vidus). | 2010 | 20359877 |
| longitudinal phylogenetic surveillance identifies distinct patterns of cluster dynamics. | through the application of simple, accessible, molecular epidemiology tools, we aimed to resolve the phylogenetic relationships that best predicted patterns of cluster growth using longitudinal population level drug resistance genotype data. | 2010 | 20622676 |
| elevated overdose mortality rates among first nations individuals in a canadian setting: a population-based analysis. | to determine the total burden of illicit drug overdose mortality over the study period in the province of british columbia and investigate possible population-level determinants by estimating rates among subgroups including first nations individuals. | 2010 | 20825372 |
| emergency department utilization among a cohort of hiv-positive injecting drug users in a canadian setting. | background: human immunodeficiency virus (hiv)-positive injection drug users (idus) are known to be at risk for multiple medical problems that may necessitate emergency department (ed) use; however, the relative contribution of hiv disease vs. injection-related complications has not been well described. objectives: we examined factors associated with ed use among a prospective cohort of hiv-positive idus in a canadian setting. methods: we enrolled hiv-positive idus into a community-recruited pro ... | 2011 | 21719229 |
| individual and structural vulnerability among female youth who exchange sex for survival. | because of growing concerns regarding the heightened vulnerabilities and risk of human immunodeficiency virus infection among youth who exchange sex for survival, we investigated individual risk patterns and structural barriers among young (ôëñ24 years) female sex workers (fsws) in vancouver, canada. | 2011 | 21700154 |