ArticleAmerican journal of public health2013
Contribution of maternal age to preterm birth rates in Denmark and Quebec, 1981-2008.
Article in American journal of public health, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled 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.
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
14 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Prevalence of preterm birth in Scandinavian countries: a systematic review and meta-analysis.The Journal of international medical research · 2023Pooled it
- Sustained decline in birth weight and increased rate of preterm infants born small for gestational age in Japan.Frontiers in pediatrics · 2024Article
- Development and validation of a prediction model on spontaneous preterm birth in twin pregnancy: a retrospective cohort study.Reproductive health · 2023Article
- Independent and joint contributions of inadequate antenatal care timing, contacts and content to adverse pregnancy outcomes.Annals of medicine · 2023Article
- Contributors to Preterm Birth: Data from a Single Polish Perinatal Center.Children (Basel, Switzerland) · 2023Article
- Hypertensive Disorders during Pregnancy (HDP), Maternal Characteristics, and Birth Outcomes among Japanese Women: A Hokkaido Study.International journal of environmental research and public health · 2021Article
- Observational
- The association between parity and spontaneous preterm birth: a population based study.BMC pregnancy and childbirth · 2020Article
- The epidemiologic characteristics and associated risk factors of preterm birth from 2004 to 2013 in Taiwan.BMC pregnancy and childbirth · 2020Article
- Article
- International variations in the gestational age distribution of births: an ecological study in 34 high-income countries.European journal of public health · 2018Article
- Decomposition Analysis of Black-White Disparities in Birth Outcomes: The Relative Contribution of Air Pollution and Social Factors in California.Environmental health perspectives · 2017Article
- What contributes to disparities in the preterm birth rate in European countries?Current opinion in obstetrics & gynecology · 2015Review
- Population-wide folic acid fortification and preterm birth: testing the folate depletion hypothesis.American journal of public health · 2015Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesWe sought evidence to support the hypothesis that advancing maternal age is potentially causing a rise in preterm birth (PTB) rates in high-income countries.
methodsWe assessed maternal age-specific trends in PTB using all singleton live births in Denmark (n = 1 674 308) and Quebec (n = 2 291 253) from 1981 to 2008. We decomposed the country-specific contributions of age-specific PTB rates and maternal age distribution to overall PTB rates over time.
resultsPTB rates increased from 4.4% to 5.0% in Denmark and from 5.1% to 6.0% in Quebec. Rates increased the most in women aged 20 to 29 years, whereas rates decreased or remained stable in women aged 35 years and older. The overall increase over time was driven by age-specific PTB rates, although the contribution of younger women was countered by fewer births at this age in both Denmark and Quebec.
conclusionsPTB rates increased among women aged 20 to 29 years, but their contribution to the overall PTB rates was offset by older maternal age over time. Women aged 20 to 29 years should be targeted to reduce PTB rates, as potential for prevention may be greater in this age group.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.