Evidence map›Paper›PMID 38609870›Full record

ArticleBMC cancer2024

The incidence of early onset colorectal cancer in Aotearoa New Zealand: 2000-2020.

Oliver Waddell, John Pearson, Andrew McCombie, Harriet Marshall, Rachel Purcell, Jacqueline Keenan, Tamara Glyn, Frank Frizelle

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
3.7field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Gut Microbiota and Colorectal Cancer: A Balance Between Risk and Protection.International journal of molecular sciences · 2025
    Review
  6. Article
  7. Article
  8. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

Oliver WaddellDepartment of Surgery and Critical Care, University of Otago Christchurch, 36 Cashel St, Christchurch central, Christchurch, New Zealand. DrOliverWaddell@gmail.com.ORCID http://orcid.org/0000-0002-4175-7603
John PearsonBiostatistics and Computational Biology Unit, University of Otago Christchurch, Christchurch, New Zealand.
Andrew McCombieDepartment of Surgery and Critical Care, University of Otago Christchurch, 36 Cashel St, Christchurch central, Christchurch, New Zealand.
Harriet MarshallDepartment of General Surgery, Te Whatu Ora Health New Zealand, Christchurch, New Zealand.
Rachel PurcellDepartment of Surgery and Critical Care, University of Otago Christchurch, 36 Cashel St, Christchurch central, Christchurch, New Zealand.
Jacqueline KeenanDepartment of Surgery and Critical Care, University of Otago Christchurch, 36 Cashel St, Christchurch central, Christchurch, New Zealand.
Tamara GlynDepartment of Surgery and Critical Care, University of Otago Christchurch, 36 Cashel St, Christchurch central, Christchurch, New Zealand.
Frank FrizelleDepartment of Surgery and Critical Care, University of Otago Christchurch, 36 Cashel St, Christchurch central, Christchurch, New Zealand.ORCID http://orcid.org/0000-0002-0739-4802
University of Otago · NZChristchurch Clinical Studies Trust · NZ

Funding

Colorectal Surgical Society of Australia and New Zealand project 47
6 · The paper itself

Abstract

backgroundThe incidence of early-onset colorectal cancer (EOCRC), diagnosed before age 50, has been rising in many countries in the past few decades. This study aims to evaluate this trend in Aotearoa New Zealand and assess its impact on Māori.

methodsCrude incidence and age-standardized incidence of colorectal cancer (CRC) was analyzed from all new cases from the Aotearoa New Zealand national cancer registry for the period 2000-2020. Trends were estimated by sex, ethnicity, age group and location of cancer and projections made to 2040.

resultsBetween 2000 and 2020, there were a total of 56,761 cases of CRC diagnosed in Aotearoa New Zealand, 3,702 of these being EOCRC, with age-standardized incidence decreasing significantly (P = 8.2 × 10

conclusionThe age-standardized incidence of CRC from 2000 to 2020 decreased in Aotearoa New Zealand, but not for Māori. The incidence of EOCRC over the same period continues to rise, and at a faster rate in Māori. However, with the ageing of the population in Aotearoa New Zealand, and for Māori, CRC in the elderly will continue to dominate case numbers.

Indexed as

Colorectal NeoplasmsMaori PeopleAdultAgedAged, 80 and overAgingHumansIncidenceMiddle AgedNew Zealand

Identifiers

PMID38609870
PMCPMC11010297
OpenAlexW4394760387

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.