Selection bias in studies of birth defects among livebirths: Much ado about nothing?

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.

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.

Who cites it

6 citing papers in PubMed.

1. Big Data Are Only as Good as the People and the Processes That Create Them: The EUROlinkCAT Success Story.Paediatric and perinatal epidemiology · 2025
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2. Associations between severe and notifiable respiratory infections during the first trimester of pregnancy and congenital anomalies at birth: a register-based cohort study.BMC pregnancy and childbirth · 2023
   Article
3. The quality and the accuracy of codes for terminations of pregnancy for fetal anomalies recorded in hospital databases in three countries in northern Europe.Birth defects research · 2023
   Article
4. The risk of major structural birth defects associated with seasonal influenza vaccination during pregnancy: A population-based cohort study.Birth defects research · 2022
   Article
5. Prenatal diagnosis and pregnancy outcome of major structural anomalies detectable in the first trimester: A population-based cohort study in the Netherlands.Paediatric and perinatal epidemiology · 2022
   Article
6. Effect of prenatal screening on trends in perinatal mortality associated with congenital anomalies before and after the introduction of prenatal screening: A population-based study in the Northern Netherlands.Paediatric and perinatal epidemiology · 2021
   Article

Corrections and comments

• Comment on
  Quantification of selection bias in studies of risk factors for birth defects among livebirths.2020

Authors and funding

1 author.

Funding

No grant is acknowledged in the PubMed record.

Abstract

PubMed holds no abstract for this paper.

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