Evidence map›Paper›PMID 32577730›Full record

ArticleJournal of the National Cancer Institute2021

Multiple Primary Melanoma Incidence Trends Over Five Decades: A Nationwide Population-Based Study.

Hildur Helgadottir, Karolin Isaksson, Ildiko Fritz, Christian Ingvar, Jan Lapins, Veronica Höiom, Julia Newton-Bishop, Håkan Olsson

Open access · bronzeAbstract read
In one paragraph

Article in Journal of the National Cancer Institute, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 14% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Survival impact of second primary cutaneous and non-cutaneous melanoma in melanoma survivors.Journal of the European Academy of Dermatology and Venereology : JEADV · 2026
    Article
  4. Observational
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. The Role of Hedgehog Signaling in the Melanoma Tumor Bone Microenvironment.International journal of molecular sciences · 2023
    Article
  13. Article
  14. Article
  15. Review
  16. Season of birth is associated with multiple sclerosis and disease severity.Multiple sclerosis journal - experimental, translational and clinical · 2021
    Article
  17. Genotypic vs Phenotypic Risk Assessment for Melanoma.Journal of the National Cancer Institute · 2021
    Article
  18. 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 3 institutions in 2 countries.

Hildur HelgadottirDepartment of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden.
Karolin IsakssonDepartment of Clinical Sciences Lund, Surgery, Lund University, Lund, Sweden.
Ildiko FritzDepartment of Cancer Epidemiology, Clinical Sciences, Lund University, Lund, Sweden.
Christian IngvarDepartment of Clinical Sciences Lund, Surgery, Lund University, Lund, Sweden.
Jan LapinsDepartment of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden.
Veronica HöiomDepartment of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden.
Julia Newton-BishopSection of Epidemiology and Biostatistics, Institute of Medical Research at St James's, University of Leeds, Leeds, UK.
Håkan OlssonDepartment of Cancer Epidemiology, Clinical Sciences, Lund University, Lund, Sweden.
Lund University · SEKarolinska University Hospital · SEUniversity of Leeds · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOver the past decades, many regions have experienced a steady increase in the incidence of cutaneous melanoma. Here, we report on incidence trends for subsequent primary melanoma.

methodsIn this nationwide population-based study, patients diagnosed with a first primary cutaneous melanoma reported to the Swedish Cancer Registry were followed for up to 10 years for a diagnosis of subsequent primary melanoma. Patients were grouped with patients diagnosed with first melanoma in the same decade (1960s, 1970s, 1980s, 1990s, and 2000s, respectively). Frequencies, incidence rates (IRs), standardized incidence ratios (SIRs), and 95% confidence intervals (CIs) for second melanomas were calculated. All tests of statistical significance were 2-sided.

resultsOf patients with melanoma, 54 884 were included and 2469 were diagnosed, within 10 years, with subsequent melanomas. Over the 5 decades, there was a statistically significant steady increase in the frequency, IR, and SIR for second primary melanoma. For example, in the 1960s cohort, less than 1% (IR = 1.0, 95% CI = 0.5 to 1.7, and IR = 1.1, 95% CI = 0.5 to 1.9 per 1000 person-years in women and men, respectively) had second primary melanoma, and this rose to 6.4% (IR = 7.5, 95% CI = 6.8 to 8.3, per 1000 person-years) in the women and 7.9% (IR = 10.3, 95% CI = 9.3 to 11.2, per 1000 person-years) in the men in the 2000s cohort. This rise was seen independent of age, sex, invasiveness, or site of the melanoma. Further, in patients diagnosed with a second melanoma, the frequency of those having more than 2 melanomas increased statistically significantly and was 0.0% in the 1960s and rose to 18.0% in the 2000s (P < .001).

conclusionsThis is the first study to evaluate and report on a rising trend for subsequent primary melanoma. Additional primary melanomas worsen the patients' survival, and precautions are needed to turn this steep upgoing trend.

Indexed as

AdolescentAdultAgedAged, 80 and overChildChild, PreschoolCutaneous Malignant MelanomaFemaleFollow-Up StudiesHumansIncidenceInfantMaleMelanomaMiddle AgedRegistries

Identifiers

PMID32577730
PMCPMC7936055
OpenAlexW3037969056

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.