UKHSA answers one of my questions
My previous post had a couple questions about the data in the UKHSA reports.
The 1st of these questions was in regards to the fact that in the last two updates on pregnancy and vaccination, it did not appear to be the case that the total number of women reported vaccinated was equal to the sum of the amount of women vaccinated in each trimester. The response to my enquiry to the UKHSA is shown below.
Quickly, here is what is means… suppose there was a single woman in the UK & she had her 1st shot in her 1st trimester, and second shot in her 3rd trimester. The recent versions of the UKHSA report would say, “ a total of 1 woman gave birth of whom 1 had received at least 1 dose of COVID-19 vaccine prior to delivery… There was 1 woman who was vaccinated in the first trimester, 0 in the second and 1 in the third trimester.”
I would label this way of reporting the data
Still waiting on an answer on question 2 of that post, which is more significant.
Dear T Coddington
Thank you for your email to the UK Health Security Agency (UKHSA) dated 06 April 2022 regarding some pregnancy data found in our COVID-19 vaccine weekly surveillance reports. I work on the team that handles enquiries and have been asked to respond to your request.
Thank you for your interest in these reports. We are sorry if the information presented does not seem clear and will look to provide more explanation around the data when this is next updated.
I shall focus on an explanation of how the data are generated in the most recent report to December 2021.
In the overall period between January and December 2021 a total of 528,362 women gave birth of whom 102,089 had received at least 1 dose of COVID-19 vaccine prior to delivery (68,952 of these women had received at least 2 doses and 4,456 women had received at least 3 doses). This figure is based on the number of women who received at least 1 dose of COVID-19 vaccine at any point up until the time they gave birth.
There were 11,492 women who had received their first dose prior to pregnancy and went on to conceive and deliver by December 2021. There were 14,895 women who were vaccinated in the first trimester, 37,916 in the second and 45,980 in the third trimester. In addition, 28,994 women were known to have received dose one before giving birth but without enough information to establish which trimester.
The above figures include some women who have received more than one dose of vaccine and therefore a woman who received their first dose in the first trimester, and second dose in the second trimester appears in both the count for first trimester and the count for second trimester. This is why the numbers do not add up to the same total.
I hope you find this information useful.
Are you saying that there may be known significant double counting in the denominator of the vaccinated bar in the UKHSA Vaccine efficacy reports?
That’s fraud if true.
Keep going!