Evidence map›Paper›PMID 28271174›Full record

ArticleEuropean journal of epidemiology2017

Advanced paternal age and stillbirth rate: a nationwide register-based cohort study of 944,031 pregnancies in Denmark.

Stine Kjaer Urhoj, Per Kragh Andersen, Laust Hvas Mortensen, George Davey Smith, Anne-Marie Nybo Andersen

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In one paragraph

Article in European journal of epidemiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
7.7field-weighted citation impact, top 3% of its field
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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Review
  6. Article
  7. Reproductive axis ageing and fertility in men.Reviews in endocrine & metabolic disorders · 2022
    Review
  8. Review
  9. Effect of advanced parental age on pregnancy outcome and offspring health.Journal of assisted reproduction and genetics · 2022
    Review
  10. Article
  11. Parental age and preterm birth: a population-based cohort of nearly 3 million California livebirths from 2007 to 2012.Journal of perinatology : official journal of the California Perinatal Association · 2021
    Article
  12. Article
  13. Metabolism in Male Reproductive Aging.Advances in geriatric medicine and research · 2021
    Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Infertility in the Aging Male.Current urology reports · 2018
    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

5 authors at 2 institutions in 2 countries.

Stine Kjaer UrhojSection of Social Medicine, Department of Public Health, University of Copenhagen, Oster Farimagsgade 5, POB 2099, 1014, Copenhagen K, Denmark. stur@sund.ku.dk.
Per Kragh AndersenSection of Biostatistics, Department of Public Health, University of Copenhagen, Oster Farimagsgade 5, POB 2099, 1014, Copenhagen K, Denmark.
Laust Hvas MortensenSection of Social Medicine, Department of Public Health, University of Copenhagen, Oster Farimagsgade 5, POB 2099, 1014, Copenhagen K, Denmark.
George Davey SmithMRC Integrative Epidemiology Unit, School of Social and Community Medicine, University of Bristol, Oakfield House, Oakfield Grove, Bristol, BS8 2BN, UK.
Anne-Marie Nybo AndersenSection of Social Medicine, Department of Public Health, University of Copenhagen, Oster Farimagsgade 5, POB 2099, 1014, Copenhagen K, Denmark.
University of Copenhagen · DKUniversity of Bristol · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Advanced paternal age has been associated with a variety of rare conditions and diseases of great public health impact. An increased number of de novo point mutations in sperm with increasing age have been suggested as a mechanism, which would likely also affect fetal viability. We examined the association between paternal age and stillbirth rate in a large nationwide cohort. We identified all pregnancies in Denmark from 1994 to 2010 carried to a gestational age of at least 22 completed weeks (n = 944,031) as registered in national registers and linked to individual register data about the parents. The hazard ratio of stillbirth according to paternal age was estimated, adjusted for maternal age in 1-year categories, year of outcome, and additionally parental educational levels. The relative rate of stillbirth (n = 4946) according to paternal age was found to be J-shaped with the highest hazard ratio for fathers aged more than 40 years when paternal age was modelled using restricted cubic splines. When modelled categorically, the adjusted hazard ratios of stillbirth were as follows: <25, 1.16 (95% confidence interval, CI 1.01-1.34); 25-29, 1.03 (95% CI 0.95-1.11); 35-39, 1.16 (95% CI 1.07-1.26); 40-44, 1.41 (95% CI 1.26-1.59); 45-49, 1.20 (95% CI 0.97-1.49); 50+, 1.58 (95% CI 1.18-2.11), compared with fathers aged 30-34 years. These estimates attenuated slightly when further adjusted for parental education. Our study showed that paternal age was associated with the relative rate of stillbirth in a J-shaped manner with the highest hazard ratios among fathers aged more than 40 years.

Indexed as

Paternal AgeAdultCohort StudiesDenmarkFemaleHumansMaleMiddle AgedPregnancyProportional Hazards ModelsRegistriesRisk FactorsStillbirthYoung AdultCohort studyGermline mutationsPaternal agePerinatal epidemiologyStillbirth

Identifiers

PMID28271174
OpenAlexW2594639103

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.