Evidence map›Paper›PMID 37204516›Full record

ArticleInternational journal of colorectal disease2023

Trends in the prevalence and incidence of ulcerative colitis in Japan and the US.

Michiyo Yamazaki, Hsingwen Chung, Youran Xu, Hong Qiu

Abstract read
In one paragraph

Article in International journal of colorectal disease, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

42 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Trial
  4. Observational
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Selective Drug-Free Active Surveillance in Ulcerative Colitis: Biomarker-Guided, Patient-Centered Approach.JGH open : an open access journal of gastroenterology and hepatology · 2026
    Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. 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

4 authors.

Michiyo YamazakiGlobal Epidemiology, Office of the Chief Medical Officer, Janssen Research and Development, LLC, Titusville, NJ, USA.
Hsingwen ChungGlobal Epidemiology, Office of the Chief Medical Officer, Janssen Research and Development, LLC, Titusville, NJ, USA.
Youran XuGlobal Epidemiology, Office of the Chief Medical Officer, Janssen Research and Development, LLC, Titusville, NJ, USA.
Hong QiuGlobal Epidemiology, Office of the Chief Medical Officer, Janssen Research and Development, LLC, Titusville, NJ, USA. HQiu@its.jnj.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo estimate and compare annual prevalence and incidence, and demographic characteristics of patients with ulcerative colitis (UC) in Japan and the United States (US).

methodsAll patients with UC were identified from large employment-based healthcare claims databases (Japan Medical Data Center [JMDC] in Japan and IBM MarketScan Commercial Claims and Encounters database [CCAE] in the US), from 2010 to 2019. Cases were confirmed using International Classification of Disease-9/10 codes with/without Anatomical Therapeutic Chemical codes. Annual age-standardized prevalence and incidence rates were estimated for the JMDC by direct standardization using the CCAE as the standard population.

resultsPatients with UC were younger in Japan than in the US and men were affected more than women, whereas the reverse was true in the US. Annual prevalence per 100,000 population increased significantly from 5 in 2010 to 98 in 2019 in Japan and from 158 to 233 in the US. Prevalence increased in men more than in women and in all age groups in Japan, whereas increases were observed similarly in men and women, and in the 6 to < 65-year age groups in the US. Annual incidence per 100,000 person-years increased significantly over time in both sexes and in all age groups in Japan, with higher increases in women and in ≥ 18 year-olds. UC incidence rates did not change over time in the US.

conclusionTen-year trends in epidemiology of UC differ between Japan and the US. The data point to a growing disease burden in both countries that warrants investigation of measures for prevention and treatment.

Indexed as

Colitis, UlcerativeFemaleHospitalsHumansIncidenceJapanMalePrevalenceUnited StatesDatabaseEpidemiology ulcerative colitisIncidence prevalenceJapanUnited States

Identifiers

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.