Evidence map›Paper›PMID 29936049›Full record

ArticleAnnals of epidemiology2018

Multiple bias analysis using logistic regression: an example from the National Birth Defects Prevention Study.

Candice Y Johnson, Penelope P Howards, Matthew J Strickland, D Kim Waller, W Dana Flanders, National Birth Defects Prevention Study

Abstract read
In one paragraph

Article in Annals of epidemiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. 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

6 authors.

Candice Y JohnsonDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA; National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, GA. Electronic address: cyjohnson@cdc.gov.
Penelope P HowardsDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA.
Matthew J StricklandSchool of Community Health Sciences, University of Nevada Reno, Reno, NV.
D Kim WallerThe University of Texas School of Public Health, Houston, TX.
W Dana FlandersDepartment of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA.
National Birth Defects Prevention Study

Funding

Intramural CDC HHS CC999999
6 · The paper itself

Abstract

purposeExposure misclassification, selection bias, and confounding are important biases in epidemiologic studies, yet only confounding is routinely addressed quantitatively. We describe how to combine two previously described methods and adjust for multiple biases using logistic regression.

methodsWeights were created from selection probabilities and predictive values for exposure classification and applied to multivariable logistic regression models in a case-control study of prepregnancy obesity (body mass index ≥30 vs. <30 kg/m

resultsAdjusting for confounding by race/ethnicity, prepregnancy obesity, and CL/P were weakly associated (odds ratio [OR]: 1.10; 95% confidence interval: 0.98, 1.23). After weighting the data to account for exposure misclassification, missing exposure data, selection bias, and confounding, multiple bias-adjusted ORs ranged from 0.94 to 1.03 in nonprobabilistic bias analyses and median multiple bias-adjusted ORs ranged from 0.93 to 1.02 in probabilistic analyses.

conclusionsThis approach, adjusting for multiple biases using a logistic regression model, suggested that the observed association between obesity and CL/P could be due to the presence of bias.

Indexed as

Body Mass IndexBody WeightAdolescentAdultBiasCase-Control StudiesCleft LipCleft PalateFemaleHumansLogistic ModelsMiddle AgedObesityPopulation SurveillancePregnancyPregnancy ComplicationsBiasBody mass indexCleft lipRegression analysis

Identifiers

PMID29936049
PMCPMC6060411

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.