Publications by authors named "Jan-Hendrik Richardus"
Population prevalence of Chlamydia trachomatis and Neisseria gonorrhoeae in the Netherlands. Should asymptomatic persons be tested during population-based Chlamydia screening also for gonorrhoea or only if chlamydial infection is found?
BMC Infect Dis
March 2006
Background: Screening and active case finding for Chlamydia trachomatis (CT) is recommended to prevent reproductive morbidity. However insight in community prevalence of gonococcal infections and co-infections with Neisseria gonorrhoea (NG) is lacking.
Methods: Nested study within a large population-based Chlamydia Screening Pilot among 21.
Background: Active case finding is crucial to reduce transmission and consequences of Chlamydia trachomatis (CT) infections. We previously proposed the use of a prediction rule for CT infection for selective screening of high-risk individuals in a population. To support such an application, the prediction rule needs to be validated in other populations.
View Article and Find Full Text PDFObjectives: The objectives of this study were to determine the rate of new infections and reinfections or persistent infections with Chlamydia trachomatis to define appropriate screening intervals and to identify risk factors for reinfection.
Design: This was a cross-sectional study among a subsample of participants in a population-based screening.
Setting: This study was conducted in urban and rural areas in The Netherlands.
Background/aims: To evaluate a guideline selecting patients at the primary care level for referral to a specialist, to identify bottlenecks and subsequently implement and evaluate improvements.
Methods: Retrospective patient files analysis and a prospective cohort study. The study was conducted in Municipal Public Health Service (PHS), University Medical Center.
Severe acute respiratory syndrome (SARS)-related risk perceptions, knowledge, precautionary actions, and information sources were studied in the Netherlands during the 2003 SARS outbreak. Although respondents were highly aware of the SARS outbreak, the outbreak did not result in unnecessary precautionary actions or fears.
View Article and Find Full Text PDFObjective: To determine whether addition of low dose prednisolone to multidrug treatment can prevent reaction and nerve function impairment in leprosy.
Design: Multicentre, double blind, randomised, placebo controlled, parallel group trial.
Setting: Six centres in Bangladesh and Nepal.
Background: Previous studies have suggested that a population's entire birth weight distribution may be shifted towards higher or lower birth weights, and that optimal birth weight may be lower in populations with a lower average birth weight. We evaluated this hypothesis for seven western European countries.
Methods: We obtained data on all singleton births (N = 1,372,092) and extended perinatal deaths (stillbirths plus neonatal deaths; N = 7,900) occurring in Finland, Sweden, Norway, Denmark, Scotland, the Netherlands, and Flanders (Belgium) in 1993-1995.
Background: To determine: 1) whether substandard factors were present in cases of perinatal death, and to what extent another course of action might have resulted in a better outcome, and 2) whether there were differences in the frequency of substandard factors by level of care, particularly between midwives and gynecologists/obstetricians and between home and hospital births.
Methods: Population-based perinatal audit, with explicit evidence-based audit criteria.
Setting: The northern part of the province of South-Holland in The Netherlands.