A K van der Bij

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We retrospectively screened 1836 men who have sex with men (MSM) participating in the Amsterdam Cohort Studies (1984-2003) for hepatitis C virus (HCV) antibodies. HCV incidence was 0.18/100 person-years (PY) in human immunodeficiency virus (HIV)-positive MSM (8/4408 PY [95% confidence interval {CI}, 0.08-0.36]) but was 0/100 PY in MSM without HIV (0/7807 PY(More)
The purpose of this multidisciplinary review paper is to critically review evidence from descriptive, efficacy and effectiveness studies concerned with physical activity and older people. Both levels of fitness (aerobic power, strength, flexibility and functional capability) and measures of physical activity involvement decline with age, and the extent to(More)
Since December 2009, mumps incidence has increased in the Netherlands. As of 20 April 2010, 172 cases have been notified on the basis of laboratory confirmation or linkage to a laboratory-confirmed case. Of these, 112 were students, the majority of whom had been vaccinated (81%). Although outbreaks in vaccinated populations have been described before, risk(More)
OBJECTIVES In the industrialized world, lymphogranuloma venereum proctitis (LGVP) has been reported only in men who have sex with men. Factors responsible for the outbreak remain to be elucidated. GOAL The goal of the present work was to elucidate risk factors associated with LGVP. STUDY DESIGN The study design comprised a cross-sectional study(More)
OBJECTIVES The incidence of HIV and STIs increased among men who have sex with men (MSM) visiting our STI clinic in Amsterdam. Interestingly, HIV increased mainly among older (> or =35 years) MSM, whereas infection rates of rectal gonorrhoea increased mainly in younger men. To explore this discrepancy we compared trends in STIs and HIV in a cohort of young(More)
A study was designed to assess the importance of sequence types among extended-spectrum β-lactamase (ESBL)-producing Escherichia coli isolates causing bacteremia over an 11-year period (2000 to 2010) in a centralized Canadian region. A total of 197 patients with incident infections were identified; the majority presented with community-onset urosepsis, with(More)
BACKGROUND The use of clinical guidelines in general practice is often limited. Research on barriers to guideline adherence usually focuses on attitudinal factors. Factors linked to the guideline itself are much less studied. AIM To identify characteristics of effective clinical guidelines for general practice, and to explore whether these differ between(More)
We designed a study to describe the characteristics of sequence type 131 (ST131) lineages, including the H30-Rx sublineage, among a global collection of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli isolates from 9 countries collected from 2000 to 2011. A total of 240 nonrepeat isolates from Canada, the United States, Brazil, the(More)
OBJECTIVE Assessment of anxiety levels in women and men before and after preconception counseling and during the first trimester of pregnancy. METHODS Couples were recruited from the fertility clinic of the University Medical Center Nijmegen, the Netherlands. Anxiety was assessed using the 40-item Spielberger State-Trait Anxiety Inventory (STAI). (More)
Clinical practice guidelines are being developed in many countries throughout the world to improve quality of patient care. However, the methods used to develop guidelines vary among organisations. Therefore an international task group, the AGREE (Appraisal Guideline Research and Evaluation Europe) Collaboration, started in 1998 to work on the harmonisation(More)