Evidence map›Paper›PMID 26688282›Full record

ArticleAnnals of epidemiology2016

Role of survivor bias in pancreatic cancer case-control studies.

Zhen-Huan Hu, John E Connett, Jian-Min Yuan, Kristin E Anderson

Abstract read
In one paragraph

Article in Annals of epidemiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–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

11 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Top ten errors of statistical analysis in observational studies for cancer research.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2018
    Review
  9. Article
  10. Article
  11. Tobacco and alcohol as risk factors for pancreatic cancer.Best practice & research. Clinical gastroenterology · 2017
    Review
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.

Zhen-Huan HuCenter for International Blood and Marrow Transplant Research, Department of Medicine, Medical College of Wisconsin, Milwaukee. Electronic address: zhu@mcw.edu.
John E ConnettDivision of Biostatistics, School of Public Health, University of Minnesota, Minneapolis.
Jian-Min YuanUniversity of Pittsburgh Cancer Institute and Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA.
Kristin E AndersonDivision of Epidemiology & Community Health, School of Public Health, University of Minnesota, Minneapolis.

Funding

EPIDEMIOLOGY OF CANCER IN A COHORT OF OLDER WOMENR01CA039742 · NCI · UNIVERSITY OF MINNESOTA TWIN CITIES · PI LAZOVICH, DEANN · 1985 to 2014
$8.0M
NCI NIH HHS R01 CA039742NCI NIH HHS R01 CA39742
6 · The paper itself

Abstract

purposeThe purpose of this study was to evaluate the impact of survivor bias on pancreatic cancer case-control studies.

methodsThe authors constructed five case-loss scenarios based on the Iowa Women's Health Study cohort to reflect how case recruitment in population-based studies varies by case survival time. Risk factors for disease incidence included smoking, body mass index (BMI), waist circumference, diabetes, and alcohol consumption. Odds ratios (ORs) were estimated by conditional logistic regression and quantitatively compared by the interactions between risk factors and 3-month survival time. Additionally, Kaplan-Meier estimates for overall survival were compared within the subset cohort of pancreatic cancer cases.

resultsBMI and waist circumference showed a significant inverse relationship with survival time. Decreasing trends in ORs for BMI and waist circumference were observed with increasing case survival time. The interaction between BMI and survival time based on a cutpoint of 3 months was significant (P < .01) as was the interaction between waist circumference and survival time (P < .01).

conclusionsThe findings suggested that case losses could result in survivor bias causing underestimated odds ratios for both BMI and waist circumference, whereas other risk factors were not significantly affected by case losses.

Indexed as

Case-Control StudiesSelection BiasSurvivorsAdultAgedBody Mass IndexFemaleFollow-Up StudiesHumansIowaKaplan-Meier EstimateLogistic ModelsMiddle AgedOdds RatioPancreatic NeoplasmsProspective StudiesBody mass indexCase control studyPancreatic neoplasmSurvivor biasWaist circumference

Identifiers

PMID26688282
PMCPMC5074341

What OpenQuestion holds

Textmetadata
LicenceTDM
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.