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Vaccinated and unvaccinated patients in hospital

How many of the COVID-19 patients who have been admitted to hospital had been vaccinated? This is something lots of people are wondering about. Currently, this information is not available on the dashboard. In this article we explain why this information is being gathered by means of a survey. In mid-July LCPS (the national coordination centre for patient distribution) conducted a survey among lung specialists to gain an idea of the number of vaccinated and unvaccinated people being admitted to hospital.

Vaccinated and unvaccinated patients in hospital

This article explains the effect of vaccination on hospital admissions.

The dashboard shows the number of COVID-19 patients admitted to hospital to per day. These figures are very exact, because every COVID-19 patient who is admitted is registered by the National Intensive Care Evaluation Registry (Stichting NICE). This data is later included on the dashboard. Everyone in the Netherlands who has been fully vaccinated or received their first dose, and has given permission for registration, is registered in the RIVM registration system CIMS. For privacy reasons the two systems have not yet been linked. This is why data on the vaccination status of COVID-19 patients who have been admitted to hospital is not automatically available and we are unable to show this information on the dashboard for privacy reasons. Efforts are underway to link the two systems, with due consideration for patients’ privacy.

Survey of hospitals

In order to nevertheless gain an idea of the effect of vaccination on hospital admissions, Stichting NICE carried out a survey and LCPS requested a data sample among lung specialists from all hospitals. Most hospitals responded. The vaccination status of 320 of the 370 COVID-19 patients admitted to hospital in the week from 12 July to 18 July, is known.

COVID-19 patients admitted in the week from 12 to 18 July


Three quarters of patients unvaccinated or not fully vaccinated

Almost three quarters (74%) of the COVID-19 patients in the sample were unvaccinated or only partially vaccinated. Partially vaccinated COVID-19 patients are those who have received only 1 of 2 doses. 15% of the patients had been fully vaccinated, but that includes the 5% who were known to have a weak immune system, for example due to an immune disorder or the use of medication that weakens the immune system. For 11% of the COVID-19 patients insufficient data was available or they had been admitted to hospital for a different reason and tested positive for coronavirus while in hospital. The sample shows that fully vaccinated people are at a much lower risk of being hospitalised with COVID-19.