19 July 2024
Chris Johnston
[FYI request #27260 email] Tēnā koe Chris
Your request for official information, reference: HNZ00052991
Thank you for your email on 17 June 2024, asking Health New Zealand | Te Whatu Ora for the
following under the Official Information Act 1982 (the Act):
Please provide machine readable datasets in csv format that shows the total number of
people by age and gender enrolled with the NZ health system that are vaccinated with
a specified number of COVID vaccine doses from 1 Jan 2020 through to the present
day as at the end of each calendar month.
Where a person dies in a particular month then they would not be counted in the
subsequent month as being enrolled in the NZ health system – and therefore not be
included in the counts in each dataset after that month.
Please provide the dataset specified below for the people who received at least 1 dose
(including those people who eventually had more than one dose), then another extract
of the dataset for those people who have received at least 2 doses, another for “at least
3 doses”, a 4th dataset for “at least 4 doses” and a final dataset for those who have
received 5 or more doses.
The columns of the dataset would be expected to include:
1) Date: Date at the end of the month with the earliest date being 31 Jan 2020. That is,
the first year of data will give a baseline of variation by month that subsequent years
that included the vaccination programme can be compared to and is expected to be
mostly zero for each dose dataset.
2) Age: Age from birth as at the end of the month. 0 is the age up to 364 days, 1 is from
1 year to 1 year and 364 days etc. The highest age category should be 100+
3) Gender: Male/Female/Unknown or Other
4) Number of People: Count of the population of people under the care/enrolled in the
NZ public health system who are vaccinated with the dose number specified (eg 1+,
2+, 3+, 4+, 5+) of any of the COVID vaccines. The number in this column will change
based on the variation in the enrolled population, the aging of the vaccinated each
month and deaths. If a subsequent dose is received the person will still be counted (eg
a 2 dose person will still be counted in the "1+" dose dataset from the point they
receive their second dose).
Response
Please find attached the five datasets requested, labelled
RT611. These contain the requested
datasets broken down by dose. To protect the privacy of individuals, values between 1 and 5 are
suppressed under section 9(2)(a) of the Act and represented as <6 in the datasheets
. In making
this decision, we have considered the countervailing public interest in release and determined that
it does not outweigh the need to withhold on this occasion.
Attachments: RT611 Vaccinated pop
by demo x 5 (1 dose, 2 dose, 3 dose, 4 dose, & 5 dose)
Please note the following caveats apply to this data:
• Data is subject to any unresolved data quality issues in the Aotearoa Immunisation Register
(AIR). For example, vaccination events that apparently happened in early 2020 before the
inception of Covid-19 vaccines are likely unresolved data entry errors. Similarly, this is likely
to apply to vaccinations of children/infants before approval of age-appropriate vaccines.
• What represents
Age in this task is the current age as at the end of the relevant month.
• Caution should be taken when interpreting data before February 2021. This is because
those data pre-dated commencement of NZ COVID-19 Vaccine and Immunisation
Programme (CVIP). The CVIP started 19th February 2021.
• Note that where number of people equals zero for a date, age, gender combination, the row
is not included rather than displayed
• The format of this data extract means that unique individuals feature on multiple rows, as
each month is a snapshot of the number of people vaccinated - people are included in the
data every month after the first month that they appear in the data.
How to get in touch
If you have any questions, you can contact us at
[email address].
If you are not happy with this response, you have the right to make a complaint to the
Ombudsman. Information about how to do this is available at
www.ombudsman.parliament.nz or
by phoning 0800 802 602.
As this information may be of interest to other members of the public, Health NZ may proactively
release a copy of this response on our website. All requester data, including your name and
contact details, will be removed prior to release.
Nāku iti noa, nā
Juliet Rumball Smith
Director, Intelligence
National Public Health Service
TeWhatuOra.govt.nz
Health NZ, PO Box 793,
Wellington 6140, New Zealand
