Evidence map›Paper›PMID 20964861›Full record

ArticleBMC medical research methodology2010

Assessing nonresponse bias at follow-up in a large prospective cohort of relatively young and mobile military service members.

Alyson J Littman, Edward J Boyko, Isabel G Jacobson, Jaime Horton, Gary D Gackstetter, Besa Smith, Tomoko Hooper, Timothy S Wells, Paul J Amoroso, Tyler C Smith and 1 more

Abstract read
In one paragraph

Article in BMC medical research methodology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing 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

44 citing papers in PubMed.

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  8. The Study of Adolescent Resilience (SOAR): a research protocol.Frontiers in child and adolescent psychiatry · 2024
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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

11 authors.

Alyson J LittmanSeattle Epidemiologic Research and Information Center, Department of Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA. alyson@u.washington.edu
Edward J Boyko
Isabel G Jacobson
Jaime Horton
Gary D Gackstetter
Besa Smith
Tomoko Hooper
Timothy S Wells
Paul J Amoroso
Tyler C Smith
Millennium Cohort Study

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNonresponse bias in a longitudinal study could affect the magnitude and direction of measures of association. We identified sociodemographic, behavioral, military, and health-related predictors of response to the first follow-up questionnaire in a large military cohort and assessed the extent to which nonresponse biased measures of association.

methodsData are from the baseline and first follow-up survey of the Millennium Cohort Study. Seventy-six thousand, seven hundred and seventy-five eligible individuals completed the baseline survey and were presumed alive at the time of follow-up; of these, 54,960 (71.6%) completed the first follow-up survey. Logistic regression models were used to calculate inverse probability weights using propensity scores.

resultsCharacteristics associated with a greater probability of response included female gender, older age, higher education level, officer rank, active-duty status, and a self-reported history of military exposures. Ever smokers, those with a history of chronic alcohol consumption or a major depressive disorder, and those separated from the military at follow-up had a lower probability of response. Nonresponse to the follow-up questionnaire did not result in appreciable bias; bias was greatest in subgroups with small numbers.

conclusionsThese findings suggest that prospective analyses from this cohort are not substantially biased by non-response at the first follow-up assessment.

Indexed as

BiasCohort StudiesMilitary PersonnelAdolescentAdultAge FactorsAlcoholismEducational StatusFemaleFollow-Up StudiesHealth SurveysHumansLogistic ModelsMajor Depressive DisorderMaleMiddle Aged

Identifiers

PMID20964861
PMCPMC2984503

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Registered trials

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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.