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. 2013:72:19558.
doi: 10.3402/ijch.v72i0.19558. Epub 2013 Feb 19.

The HIV epidemic in Greenland--a slow spreading infection among adult heterosexual Greenlanders

Karen Bjorn-Mortensen  1 , Karin Ladefoged, Niels Obel, Marie Helleberg
Affiliations

The HIV epidemic in Greenland--a slow spreading infection among adult heterosexual Greenlanders

Karen Bjorn-Mortensen et al. Int J Circumpolar Health. 2013.

Abstract

Introduction: We aimed to characterise the HIV epidemic in Greenland and to determine incidence, prevalence, mortality rates (MR) and specific causes of deaths.

Study design: The study design used was population-based nationwide cohort study.

Methods: We included all patients diagnosed with HIV in Greenland before 2011. Data were obtained from patient files, death certificates and the mandatory reports of HIV cases. Incidence and prevalence were estimated as cases/100,000 adults/year and MR as deaths/1,000 person-years (PYR). MRs were estimated for the pre-HAART (≤1996), early-HAART (1997-2004) and late-HAART (≥2005) periods. Deaths were considered AIDS related, if CD4 count <6 months before death was <200 cells/µL and/or an AIDS-related event occurred <12 months of death.

Results: We identified 171 cases of HIV among adult Greenlanders. Of these, 133 (78%) were infected in Greenland, 17 (10%) in Denmark and 21 (12%) in other places. The majority was infected through heterosexual contact [127 (74%)], 30 (18%) through homosexual contact, 3 (2%) through intravenous drug use and 11 (6%) through other or unknown routes of transmission. The median age at HIV diagnosis was 46 years (interquartile range 34-56). The incidence increased from 3.8 before 1989 to 29.7 cases/100,000 adults/year in the late 1990s. The incidence has slowly declined to approximately eight cases/100,000 adults/year. Prevalence increased to a maximum in 2009 (174.9/100,000 inhabitants), and slowly declined since then. A total of 79 have died and 25 have emigrated. MRs were high in the pre- and early-HAART periods, 65.3 [95% confidence intervals (CI) 40.0-106.6] and 87.0 [95% CI 63.5-119.0], and a large fraction of deaths were AIDS related. In the late-HAART period, MR has declined markedly to 53.4 (95% CI 35.8-79.7) with a substantial decline in AIDS-related MR.

Conclusion: Heterosexual contact is the main route of HIV infection and the patients are diagnosed at a median age of 46. The incidence of newly diagnosed HIV patients has decreased markedly since year 2000. Mortality is high although declining in recent years.

Keywords: Greenland; HIV; causes of death; demographics; mortality rate.

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Figures

Fig. 1
Fig. 1
Area of reported HIV cases, incidence and prevalence/100,000 inhabitants >15 years of age. Number of persons reported with HIV in Nuuk, Sisimiut and the rest of Greenland.
Fig. 2
Fig. 2
Kaplan–Meier curve showing survival of HIV patients living in Nuuk versus HIV patients living in the rest of Greenland in the total study period.
See this image and copyright information in PMC

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