Publications by authors named "Wolfert Spijker"

Breast cancer is one of the most common types of cancer among women. National mammography screening programs can detect breast cancer early, but attendance rates have been decreasing in the Netherlands over the past decade. Non-attendees reported that overdiagnosis, the risk of false-negative results, x-ray exposure and mammography pain could be barriers to attendance, but it is not clear whether these disadvantages explain non-attendance and in which situations they are considered barriers.

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Objective: To assess the effect of an information leaflet on knowledge, explicit attitudes, implicit associations, and attendance for breast cancer screening.

Methods: Dutch women (aged 49-75 years) were approached three months before their breast cancer screening invitation. After providing informed consent, participants were randomised to receiving the information leaflet (intervention condition) or not (control condition).

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Article Synopsis
  • - The study compared the effectiveness of one sample FIT (1-FIT) versus two sample FIT (2-FIT) screenings for colorectal cancer over four rounds, focusing on participation, positive predictive value, and diagnostic yield.
  • - A population-based sample of asymptomatic individuals aged 50-74 in the Netherlands was invited to participate, with data collected from those who completed at least one round of screening over a nine-year period.
  • - Results showed that participation rates were slightly higher for 1-FIT (74.7%) compared to 2-FIT (72.5%), indicating a preference for the single sample test among invitees.
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Background & Aims: Among subjects screened for colorectal cancer (CRC) by the guaiac fecal occult blood test, interval cancers develop in 48% to 55% of the subjects. Data are limited on how many persons screened by fecal immunochemical tests (FIT), over multiple rounds, develop interval cancers. In the Netherlands, a pilot FIT-based biennial CRC screening program was conducted between 2006 and 2014.

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Background: The effectiveness of faecal immunochemical test (FIT)-based screening programs is highly dependent on consistent participation over multiple rounds. We evaluated adherence to FIT screening over four rounds and aimed to identify determinants of participation behaviour.

Methods: A total of 23 339 randomly selected asymptomatic persons aged 50-74 years were invited for biennial FIT-based colorectal cancer screening between 2006 and 2014.

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Objective: Limited data exist on attendance and additional yield of 2-sample faecal immunochemical testing (FIT) screening during multiple rounds. We therefore conducted a population-based colorectal cancer screening trial comparing attendance and yield of repeated 1-sample and 2-sample FIT screenings.

Design: Two randomly selected groups of average-risk subjects aged 50-74 years were invited for two rounds of either 1-sample (n=5007) or 2-sample (n=3197) FIT (OC-sensor Micro) screening.

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Objectives: Fecal immunochemical test (FIT) screening for colorectal cancer (CRC) requires timely successive rounds for an optimal preventive effect. However, data on attendance and trend in yield over multiple rounds of FIT screening are limited. We therefore conducted a consecutive third round of FIT screening in a population-based CRC screening trial.

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