Evidence map›Paper›PMID 39169475›Full record

ArticleCommunity dentistry and oral epidemiology2025

Specifying a target trial protocol to estimate the effect of preconception treatment of periodontitis on time-to-pregnancy: A commentary and applied example.

Julia C Bond, Brenda Heaton, Raul I Garcia, Kenneth J Rothman, Lauren A Wise, Matthew P Fox, Eleanor J Murray

Abstract read
In one paragraph

Article in Community dentistry and oral epidemiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

7 authors.

Julia C BondDepartment of Health Policy and Health Services Research, Boston University Henry M. Goldman School of Dental Medicine, Boston, Massachusetts, USA.ORCID 0000-0002-2988-7755
Brenda HeatonDepartment of Health Policy and Health Services Research, Boston University Henry M. Goldman School of Dental Medicine, Boston, Massachusetts, USA.
Raul I GarciaDepartment of Health Policy and Health Services Research, Boston University Henry M. Goldman School of Dental Medicine, Boston, Massachusetts, USA.
Kenneth J RothmanDepartment of Epidemiology, Boston University School of Public Health, Boston, Massachusetts, USA.
Lauren A WiseDepartment of Epidemiology, Boston University School of Public Health, Boston, Massachusetts, USA.
Matthew P FoxDepartment of Epidemiology, Boston University School of Public Health, Boston, Massachusetts, USA.
Eleanor J MurrayDepartment of Epidemiology, Boston University School of Public Health, Boston, Massachusetts, USA.

Funding

An internet-based preconception cohort study in North America and DenmarkR01HD086742 · NICHD · BOSTON UNIVERSITY MEDICAL CAMPUS · PI LAUREN A WISE · 2016 to 2026
$6.7M
Feasibility of an internet-based study of time-to-pregnancy in the United StatesR21HD072326 · NICHD · BOSTON UNIVERSITY MEDICAL CAMPUS · PI WISE, LAUREN A · 2013 to 2014
$337k
Women's oral health in the preconception period: correlates and consequencesF31DE031969 · NIDCR · BOSTON UNIVERSITY MEDICAL CAMPUS · PI BOND, JULIA CRAIG · 2022 to 2023
$74k
Eunice Kennedy Shriver National Institute of Child Health and Human DevelopmentNICHD NIH HHS R01 HD086742NICHD NIH HHS R21 HD072326NIDCR NIH HHSNIDCR NIH HHS F31 DE031969
6 · The paper itself

Abstract

backgroundThe target trial framework was developed as a strategy to design and analyze observational epidemiologic studies with the aim of reducing bias due to analytic decisions. It involves designing a hypothetical randomized trial to answer a question of interest and systematically considering how to use observational data to emulate each trial component.

aimsThe primary aim of this paper is to provide a detailed example of the application of the target trial framework to a research question in oral epidemiology. MATERIALS AND

methodsWe describe the development of a hypothetical target trial and emulation protocol to evaluate the effect of preconception periodontitis treatment on time-to-pregnancy. We leverage data from Pregnancy Study Online (PRESTO), a preconception cohort, to ground our example in existing observational data. We discuss the decision-making process for each trial component, as well as limitations encountered.

resultsOur target trial application revealed data limitations that precluded us from carrying out the proposed emulation. Implications for data quality are discussed and we provide recommendations for researchers interested in conducting trial emulations in the field of oral epidemiology. DISCUSSION: The target trial framework has the potential to improve the validity of observational research in oral health, when properly applied.

conclusionWe encourage the broad adoption of the target trial framework to the field of observational oral health research and demonstrate its value as a tool to identify directions for future research.

Indexed as

PeriodontitisPreconception CareResearch DesignTime-to-PregnancyClinical Trial Protocols as TopicFemaleHumansObservational Studies as TopicPregnancyRandomized Controlled Trials as Topicepidemiologyobservational studiesoral healthtarget trial emulation

Identifiers

PMID39169475
PMCPMC11842691

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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.