Trial reportBMJ (Clinical research ed.)2023
Effect of invitation letter in language of origin on screening attendance: randomised controlled trial in BreastScreen Norway.
Trial report in BMJ (Clinical research ed.), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to trial NCT04672265 (A Randomized Trial to Increase Access to Breast Cancer Screening by Invitation Language Among Immigrants in Norway), which is not on this map. Cited by 7 papers, 1 of them a synthesis that pooled 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.
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.
A Randomized Trial to Increase Access to Breast Cancer Screening by Invitation Language Among Immigrants in Norway
Who cites it
7 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Pooled it
- Access to translated invitations online increases involvement of linguistically diverse households in a population-based study: a cluster randomized controlled study.Scientific reports · 2025Trial
- Long-term trends and factors associated with migrant participation in Korea's National Health Screening Program: a nationwide retrospective population-based study.International journal for equity in health · 2026Article
- Effect of reminder phone calls in the language of origin on colorectal cancer screening participation among immigrants in Norway: a randomised controlled trial.The Lancet regional health. Europe · 2026Article
- A Population Survey on Barriers and Facilitators to Breast Cancer Screening Based on the Theoretical Domains Framework.Behavioral sciences (Basel, Switzerland) · 2025Article
- Access to colorectal cancer screening for Pakistani immigrants in Norway - a qualitative study.BMC health services research · 2024Article
- Article
Corrections and comments
- Erratum issued
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo explore attendance at organised mammographic screening among immigrant groups that received an invitation letter and information leaflet (invitation) in their language of origin and Norwegian compared with Norwegian only.
designRandomised controlled trial.
settingPopulation based screening programme for breast cancer in Norway (BreastScreen Norway), which invites women aged 50-69 to two-view mammographic screening biennially.
participantsAll women invited to BreastScreen Norway in the study period April 2021 to June 2022 whose language of origin was Arabic (women born in Algeria, Egypt, Lebanon, Iraq, Palestine, Sudan, Syria, Tunisia, or Morocco), English (women born in the Philippines), Polish (women born in Poland), Somali (women born in Somalia), or Urdu (women born in Pakistan) (n=11 347).
interventionThe study group received an invitation to screening in their language of origin and in Norwegian, whereas the control group received an invitation in Norwegian only during the study period.
main outcome measureAttendance at BreastScreen Norway during the study period.
resultsOverall attendance was 46.5% (2642/5683) in the study group and 47.4% (2682/5664) in the control group. No statistical differences in attendance were observed after stratification by language of invitation, age at invitation, or years since immigration.
conclusionsNo difference in attendance was observed between immigrant women invited to BreastScreen Norway in their language of origin and in Norwegian compared with Norwegian only. Several barriers to cancer screening may exist among immigrants, and translating the invitation is probably only a part of a complex explanation.
trial registrationNCT04672265. CLINICALTRIALS: gov NCT04672265.
Indexed as
Identifiers
What OpenQuestion holds
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.