Stichting HIV Monitoring SHM

Amsterdam, Netherlands

Stichting HIV Monitoring SHM

Amsterdam, Netherlands
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Richel O.,University of Amsterdam | Smit C.,Stichting HIV Monitoring SHM | De Vries H.J.C.,University of Amsterdam | De Vries H.J.C.,Public Health Service | Prins J.M.,University of Amsterdam
Journal of Acquired Immune Deficiency Syndromes | Year: 2015

We surveyed trends in incidence (1995-2012) and risk factors for anal cancer in the Dutch HIV-positive population. After an initial increase with a peak incidence in 2005-2006 of 114 [95% confidence interval (CI): 74 to 169] in all HIV+ patients and 168 (95% CI: 103 to 259) in HIV+ men who have sex with men (MSM), a decline to 72 (95% CI: 43 to 113) and 100 (95% CI: 56 to 164), respectively, was seen in 2011-2012. Low nadir CD4, alcohol use, and smoking were significantly associated with anal cancer in MSM. In conclusion, anal cancer remains a serious problem in predominantly HIV+ MSM. However, it seems that incidence rates are leveling off. © 2015 Wolters Kluwer Health, Inc. All rights reserved.


Hermanides H.S.,Red Cross | van Vught L.A.,Red Cross | Voigt R.,St Elisabeth Hospital | Muskiet F.D.,St Elisabeth Hospital | And 5 more authors.
AIDS Research and Therapy | Year: 2011

Background: Effective interventions to prevent mother-to-child HIV transmission (PMTCT) exist and when properly applied reduce the risk of vertical HIV transmission. As part of optimizing PMTCT in the Dutch Caribbean we developed a set of valid and applicable indicators in order to assess the quality of care in HIV-infected (pregnant) women and their newborns.Methods: A multidisciplinary expert panel of 19 experts reviewed and prioritized recommendations extracted from locally used international PMTCT guidelines according to a 3-step-modified-Delphi procedure. Subsequently, the feasibility, sample size, inter-observer reliability, sensitivity to change and case mixed stability of the potential indicators were tested for a data set of 153 HIV-infected women, 108 pregnancies of HIV-infected women and 79 newborns of HIV-infected women in Aruba, Curaçao and St Maarten from 2000 to 2010.Results: The panel selected and prioritized 13 potential indicators. Applicability could not be tested for 4 indicators regarding HIV-screening in pregnant women because of lack of data. Four indicators performed satisfactorily for Curaçao ('monitoring CD4-cell count', 'monitoring HIV-RNA levels', 'intrapartum antiretroviral therapy and infant prophylaxis if antepartum antiretroviral therapy was not received', 'scheduled caesarean delivery') and 3 for St Maarten ('monitoring CD4-cell count', 'monitoring HIV-RNA levels', 'discuss and provide combined antiretroviral therapy to all HIV-infected pregnant women') whilst none for Aruba.Conclusions: A systemic evidence-and consensus-based approach was used to develop quality indicators in 3 Dutch Caribbean settings. The varying results of the applicability testing accentuate the necessity of applicability testing even in, at first, comparable settings. © 2011 Hermanides et al; licensee BioMed Central Ltd.


Hermanides H.S.,Red Cross | Holman R.,Stichting HIV Monitoring SHM | Gras L.,Stichting HIV Monitoring SHM | Winkel C.N.,St Elisabeth Hospital | And 4 more authors.
AIDS Care - Psychological and Socio-Medical Aspects of AIDS/HIV | Year: 2013

Retention in care is one of the major challenges to scaling up and maximizing the effectiveness of combination antiretroviral therapy (cART). High attrition rates have been reported in the Caribbean region, varying from 6% to 23%. We studied the incidence of and risk factors for intermittent care in a cohort of adult HIV-1-positive patients, who entered into care in Curaçao between January 2005 and July 2009. A total of 214 therapy-naïve HIV-1-infected patients aged 15 years or older, entered HIV care between January 2005 and July 2009. Intermittent care was defined as at least one period of 365 days or longer in which there was no HIV care contact in Curaçao. Cox regression models were used to identify characteristics associated with time to intermittent care. In all, 203 (95%) patients could be classified as having intermittent or continuous care. The incidence of intermittent care before starting cART was 25.4 per 100 person years observation (PYO), whilst it was 6.1 per 100 PYO after starting cART. Being born outside Curaçao was associated with intermittent care before and after starting cART. Time from diagnosis to entry into care was an independent predictor for intermittent care before starting cART. Younger age was independently associated with intermittent care after starting cART. Half of the patients returned to care after intermitting care. Upon returning to care, median CD4 count was 264 cells/mm3 (IQR, 189-401) for those who intermitted care before starting cART, and 146 cells/mm3 (IQR, 73-436) in those who intermitted care after starting cART. In conclusion, the incidence of intermitting care is high in Curaçao, especially before starting cART, and intermitting care before starting cART is an independent predictor for starting cART late. © 2013 © 2013 Taylor & Francis.


Hermanides H.S.,Red Cross | Gras L.,Stichting HIV Monitoring SHM | Winkel C.N.,St Elisabeth Hospital | Gerstenbluth I.,Epidemiology and Research Unit | And 4 more authors.
AIDS Research and Human Retroviruses | Year: 2011

We compared the efficacy of combination antiretroviral therapy (cART) of Antillean HIV-1-infected patients treated on the Caribbean island of Curaçao (CUR-AN) with Antillean (NL-AN), Surinam (NL-SUR), and Dutch (NL-NL) patients treated in The Netherlands. In total 2118 therapy-naive patients who started cART between January 2005 and August 2008 were included in the comparison. The CUR-AN patients initiated cART at a median CD4 cell count of 141 cells/mm3 and 63% had counts below 200 cells/mm3. Within 12 months of the start of cART 76% of the CUR-AN patients achieved viral suppression, defined as HIV-1 RNA plasma levels below 80 copies/ml. The percentage achieving viral suppression was higher in patients treated in The Netherlands (NL-AN=87%, NL-SUR=93%, and NL-NL=96%). Lost to follow-up after 30 months of cART was 10% among CUR-AN patients and was higher than observed among patients treated in The Netherlands (NL-AN=8%, NL-SUR=3%, and NL-NL=2%). A similar pattern was found for progression to AIDS and death (10% of CUR-AN vs. 5%, 6%, and 7% of NL-AN, NL-SUR, and NL-NL patients, respectively). Late start of cART and limited viral suppression after the start of cART determine the higher rate of disease progression to AIDS and death among Antillean patients treated in Curaçao. The high percentage of lost to follow-up may result in an underestimation of AIDS and AIDS-related death among HIV-1-infected Antilleans treated in Curaçao. © 2011 Mary Ann Liebert, Inc.


Hermanides H.,Red Cross | Holman R.,Stichting HIV Monitoring SHM | Holman R.,VU University Amsterdam | Gras L.,Stichting HIV Monitoring SHM | And 5 more authors.
AIDS Research and Human Retroviruses | Year: 2013

We estimated the impact of loss to follow-up (LTFU) on the mortality rate among HIV-1-infected patients in Curaçao. A total of 214 therapy-naive HIV-1-infected patients aged 15 years or older upon entering into HIV care between January 2005 and July 2009 were included. Persons who discontinued follow-up for more than 365 days were defined as LTFU and traced with the aim of registering their vital status. If no personal contact could be made, data were matched with the Curaçao National Death Registry. Mortality rates were estimated before and after starting combination antiretroviral therapy (cART). We used log-rank tests to compare survival rates among patients LTFU and patients who experienced continuous follow-up. Pre-cART mortality in patients LTFU was similar to pre-cART mortality in those with continuous follow-up (p=0.79). All pre-cART deaths occurred within 6 months after entry. Low CD4 cell count was predictive of a shorter time to death after entry. Adjusting for those who were LTFU, the mortality rate after starting cART increased from 4.3 to 5.5 per 100 person years of observation (p=0.06). Mortality after starting cART was highest in the first 2 months after starting cART, especially for those who had late disease stage. Mortality rates were lower in patients with continuous follow-up compared to LTFUs (p<0.001). Mortality rates in HIV-1-infected patients who have started cART in Curaçao are underestimated as a result of inefficient patient administration combined with people starting cART at a very late disease stage. Monitoring HIV treatment could help in reducing the risk of LTFU and may improve the effect of treatment. © 2013 Mary Ann Liebert, Inc.

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