Evidence map›Paper›PMID 16571716›Full record

ArticleAmerican journal of public health2006

Associations of maternal age- and parity-related factors with trends in low-birthweight rates: United States, 1980 through 2000.

Quanhe Yang, Sander Greenland, W Dana Flanders

Abstract read
In one paragraph

Article in American journal of public health, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

  1. Article
  2. Socio-economic and nutritional determinants of low birth weight in India.North American journal of medical sciences · 2014
    Article
  3. Article
  4. Article
  5. Article
  6. Explaining regional disparities in traffic mortality by decomposing conditional probabilities.Injury prevention : journal of the International Society for Child and Adolescent Injury Prevention · 2011
    Article
  7. Article
  8. Ten putative contributors to the obesity epidemic.Critical reviews in food science and nutrition · 2009
    Review
  9. Article
  10. Article
  11. On the application of decomposition methods.American journal of public health · 2006
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors.

Quanhe YangDivision of Birth Defects and Developmental Disabilities, National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, 1600 Clifton Rd, Mail Stop E-86, Atlanta, GA 30333, USA. qay0@cdc.gov
Sander Greenland
W Dana Flanders

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesWe assessed the effects of changes in the maternal age-parity distribution and age-and parity-specific low-birthweight rates on low-birthweight trends in the United States.

methodsWe used natality file data from 1980 through 2000 to assess very-low-birthweight and low-birthweight rates among singleton live-born infants.

resultsChanges in age-and parity-specific low-birthweight rates were the main contributor to the overall trend in rates. However, changes in the age-parity distribution, primarily delayed childbearing, had a smaller but noticeable impact. The very-low-birthweight rate increased 27% among Black women, and changes in the age-parity distribution were associated with, on average, more than 20% of the increased rate during the 1990s. Among Hispanic and non-Hispanic White women, on average, more than 10% of the rate increase observed during the 1990s was associated with changes in the age-parity distribution.

conclusionsAssuming minimal changes in age-specific rates, delayed childbearing may play an increasingly important role in low-birthweight trends in the United States.

Indexed as

Infant, Low Birth WeightMaternal AgeParityAdolescentAdultBlack or African AmericanBlack PeopleFemaleHispanic or LatinoHumansInfant, NewbornMiddle AgedPopulation SurveillancePregnancyUnited StatesWhite People

Identifiers

PMID16571716
PMCPMC1470574

What OpenQuestion holds

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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.