Evidence map›Paper›PMID 17959735›Full record

ArticleBMJ (Clinical research ed.)2007

Long term risk of invasive cancer after treatment for cervical intraepithelial neoplasia grade 3: population based cohort study.

Björn Strander, Agneta Andersson-Ellström, Ian Milsom, Pär Sparén

Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in BMJ (Clinical research ed.), 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02669459 (A Randomized, Single Blinded Trial to Evaluate the Efficacy of Imiquimod in Women With Residual/Recurrent Cervical Intraepithelial Neoplasia), which is not on this map. Cited by 54 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed, 6 pooled it
5.7field-weighted citation impact, top 4% 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.

NCT02669459 phase3unknown statusnot on this mapstarted 2016, after this paper: background citation

A Randomized, Single Blinded Trial to Evaluate the Efficacy of Imiquimod in Women With Residual/Recurrent Cervical Intraepithelial Neoplasia (CIN) After Previous Treatment

TypeinterventionalSponsorErasmus Medical CenterRan2016 to 2020Enrolled433ConditionsCervical Intraepithelial NeoplasiaArmsImiquimod, LLETZ
3 · Its place in the literature

Who cites it

54 citing papers in PubMed, 6 syntheses or guidelines pooled it, 179 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 1 country.

Björn StranderDepartment of Obstetrics and Gynecology, Sahlgren's Academy, University of Gothenburg, SU/Ostra sjukhuset, SE-416 85, Sweden. bjorn.strander@oc.gu.se
Agneta Andersson-Ellström
Ian Milsom
Pär Sparén
University of Gothenburg · SEKarolinska Institutet · SEUppsala University Hospital · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo study the long term risk of invasive cancer of the cervix or vagina after treatment for cervical intraepithelial neoplasia grade 3.

designProspective cohort study.

settingSwedish cancer registry.

participantsAll women in Sweden with severe dysplasia or cervical carcinoma in situ (equivalent to cervical intraepithelial neoplasia grade 3) treated during 1958-2002 (n=132,493) contributing 2,315,724 woman years.

main outcome measuresStandardised incidence ratios with risk of cancer in the Swedish general female population as reference, and relative risks in multivariable log-linear regression model, with internal references.

resultsWomen with previous cervical intraepithelial neoplasia grade 3 had an increased risk of invasive cervical cancer compared with the general female population (standardised incidence ratio 2.34, 95% confidence interval 2.18 to 2.50). The increased risk showed a decreasing trend with time since diagnosis for women treated later than 1970 but the risk was still increased after 25 years. An effect of age was found, with an accentuated increase in risk for women aged more than 50. The excess risk for cervical cancer associated with previous cervical intraepithelial neoplasia grade 3 has steadily increased since 1958. For vaginal cancer the standardised incidence ratio was 6.82 (5.61 to 8.21) but this decreased to 2.65 after 25 years. Adjustments in the multivariable log-linear regression model did not substantially alter these results.

conclusionsWomen previously treated for cervical intraepithelial neoplasia grade 3 are at an increased risk of developing invasive cervical cancer and vaginal cancer. This risk has increased since the 1960s and is accentuated in women aged more than 50. The risk is still increased 25 years after treatment.

Indexed as

AdultAgedAged, 80 and overCohort StudiesFemaleHumansIncidenceMiddle AgedNeoplasm InvasivenessProspective StudiesRisk FactorsSwedenUterine Cervical DysplasiaUterine Cervical NeoplasmsVaginal Neoplasms

Identifiers

PMID17959735
PMCPMC2094166
OpenAlexW1995841768

What OpenQuestion holds

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Registered trials

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.