Evidence map›Paper›PMID 27239177›Full record

ArticleBreast care (Basel, Switzerland)2016

Investigating Respondents and Nonrespondents of a Postal Breast Cancer Questionnaire Survey Regarding Differences in Age, Medical Conditions, and Therapy.

Anna L Frobeen, Christoph Kowalski, Verena Weiß, Holger Pfaff

Open access · bronzeAbstract read
In one paragraph

Article in Breast care (Basel, Switzerland), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
1.0field-weighted citation impact, top 15% 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

2 citing papers in PubMed, 2 citations in OpenAlex.

  1. The psychological impacts of post-mastectomy breast reconstruction: a systematic review.Annals of breast surgery : an open access journal to bridge breast surgeons across the world · 2024
    Article
  2. 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 at 1 institution in 1 country.

Anna L FrobeenIMVR - Institute of Medical Sociology, Health Services Research and Rehabilitation Science at the Faculty of Human Sciences and the Faculty of Medicine of the University of Cologne, Cologne, Germany.
Christoph KowalskiIMVR - Institute of Medical Sociology, Health Services Research and Rehabilitation Science at the Faculty of Human Sciences and the Faculty of Medicine of the University of Cologne, Cologne, Germany.
Verena WeißIMSIE - Institute of Medical Statistics, Informatics and Epidemiology of the University of Cologne, Cologne, Germany.
Holger PfaffIMVR - Institute of Medical Sociology, Health Services Research and Rehabilitation Science at the Faculty of Human Sciences and the Faculty of Medicine of the University of Cologne, Cologne, Germany.
University of Cologne · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCollecting patient-reported data via postal questionnaires is a common and frequently used technique. Selection bias may occur through lost data from nonrespondents. This study investigated differences in characteristics between respondents and nonrespondents of a postal breast cancer survey. PATIENTS AND

methodsThe investigation was based on a cross-sectional postal questionnaire survey for the mandatory annual routine (re-)certification of accredited breast centers in North Rhine-Westphalia in 2010. Out of 4,444 patients meeting the inclusion criteria who gave their consent to participate, 3,856 respondents sent back a questionnaire and 588 nonrespondents did not. Using logistic regression, differences between respondents and nonrespondents regarding information gathered through hospital staff concerning age, affected breast, UICC (Union for International Cancer Control) staging and grading, ASA (American Society of Anesthesiologists) classification, neoadjuvant chemotherapy, and type of surgery were assessed.

resultsVery young and very old patients sent back their questionnaire significantly less frequently, as did patients who showed a later cancer stage and poorer general health and those who underwent mastectomy.

conclusionDifferences exist between respondents and nonrespondents with regard to age, disease, and therapy characteristics that need to be considered for the interpretation and generalizability of survey results due to selection bias.

Indexed as

BiasBreast cancerNonrespondentQuestionnaire survey

Identifiers

PMID27239177
PMCPMC4881251
OpenAlexW2344385577

What OpenQuestion holds

Textmetadata
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.