15 June 2026
Chris Johnston
[FYI request #34774 email]
Tēnā koe Chris
Your request for official information, reference: HNZ00203894
Thank you for your email on 24 May 2026, asking Health New Zealand | Te Whatu Ora for the
following under the Official Information Act 1982 (the OIA):
Under the Official Information Act 1982 I request three aggregated tables. This is the
conceptual successor to RT-268 (HNZ00033452) and RT-611 (HNZ00052991), specified
below so it can be actioned independently.
(A) DEATHS TABLE
Long-format, one row per non-empty combination of:
- Month of death — YYYY-MM
- Age at death band — 0–20, 21–40, 41–60, 61–80, 81–100, 100+
- Last COVID-19 dose number — 0, 1, 2, 3, 4, 5, 6, 7, 8 (0 = no prior dose)
- Days between last vaccination and death — 0–7, 8–14, 15–28, 29–60, 61–90, 91–180,
181–365, 366+, N/A (N/A where dose number = 0)
- Sex — Male, Female, Another gender, Unknown
- Ethnicity (prioritised, MoH standard) — Māori, Pacific peoples, Asian, European or Other,
Unknown
- Priority-group eligibility under which the last dose was administered — aged-care resident
or staff; healthcare worker; severely immunocompromised (MoH definition); disability sector
(Sequencing Framework Group 2); general population by age; other; unknown; N/A where
dose=0
- Underlying cause of death, ICD-10 chapter, with U07.1, U07.2, V01–X59 (accidents) and
X60–X84 (intentional self-harm) on separate lines rather than pooled — chapters I (with
U07.1, U07.2 split), II, IV, VI, IX, X, XIV, XVIII, XX (with V01–X59 and X60–X84 split), Other
(any chapter not listed)
- Count — integer; cells <6 reported as "<6"
Temporal window: deaths from 2019-07 onwards through the most recent extract date.
(B) DENOMINATOR (VACCINATED PERSON-TIME) TABLE
Long-format, one row per non-empty combination of:
- Month — YYYY-MM
- Age band — as in (A)
- Sex — as in (A)
- Ethnicity — as in (A)
- Dose number of the most recent dose received as of any day in that month — 1, 2, 3, 4, 5,
6, 7, 8
- Priority-group eligibility under which the most recent dose was administered — as in (A)
- Days since most recent dose — 0–7, 8–14, 15–28, 29–60, 61–90, 91–180, 181–365, 366+
- Person-days — integer; cells <6 reported as "<6"
A person crossing a days-since-dose bin boundary mid-month splits person-time
proportionally. A person receiving a new dose mid-month contributes the remaining days to
the new dose number's 0–7 day bin.
Temporal window: vaccinations from 2020-12 onwards through the most recent extract date.
If full person-time accounting is infeasible, end-of-month head-counts split into the same bins
is an acceptable substitute.
(C) PRE-VACCINE BASELINE MORTALITY TABLE
Long-format, one row per non-empty combination of:
- Year — 2015–2020 inclusive
- Age band — as in (A)
- Sex — as in (A)
- Ethnicity — as in (A)
- Underlying cause of death, ICD-10 chapter — same scheme as (A)
- Count — integer; cells <6 reported as "<6"
Format: CSV or XLSX, UTF-8.
Suppression: <6 cell suppression as used in RT-268 and RT-611 is acceptable; please
indicate which cells have been suppressed or rounded.
Response
Responding to parts A and C of your request would require Health NZ to link information across
multiple databases and undertake analysis to create new information. The OIA does not require
agencies to create new information in order to respond to a request. In addition, the sub-item in
part B of your request relating to priority-group eligibility is not held by Health NZ.
Accordingly, these parts of your request are refused under section 18(g) of the OIA, as the
information is not held by Health NZ and we have no grounds for believing it is held by another
agency subject to the Act.
In response to the remaining sub-items in part B of your request, please find attached
Appendix 1,
which contains COVID-19 vaccination data. For notes, definitions and general information about
the data please refer to the cover sheet of the appendix.
Counts fewer than six (shown as “<6”) have been withheld under section 9(2)(a) of the OIA to
protect the privacy of individuals. We have considered the public interest in release and do not
consider that it outweighs the need to withhold this information in this instance.
Additionally, you can find some information relevant to your request publicly available at:
• Mortality data web tool:
https://tewhatuora.shinyapps.io/mortality-web-tool/
• Mortality information:
https://www.healthnz.govt.nz/about-us/health-data/data-sets-and-
collections/mortality-data-and-statistics
• Vaccination information:
https://www.healthnz.govt.nz/about-us/health-data/data-sets-and-
collections/immunisation-data-and-statistics
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. Al requester data, including your name and
contact details, wil be removed prior to release.
Nāku iti noa, nā
Sara Freitag
Manager, Government Services