Evidence map›Paper›PMID 20133322›Full record

ArticleHuman reproduction (Oxford, England)2010

Parental occupation and risk of small-for-gestational-age births: a nationwide epidemiological study in Sweden.

X Li, J Sundquist, K Sundquist

Open access · bronzeAbstract read
In one paragraph

Article in Human reproduction (Oxford, England), 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 3 pooled it
5.5field-weighted citation impact, top 5% 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

21 citing papers in PubMed, 3 syntheses or guidelines pooled it, 36 citations in OpenAlex.

  1. Pooled it
  2. Reproductive disorders among cosmetologists and hairdressers: a meta-analysis.International archives of occupational and environmental health · 2016
    Pooled it
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  20. Work stress in first trimester causes low birth weight baby.Indian journal of community medicine : official publication of Indian Association of Preventive & Social Medicine · 2011
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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

3 authors at 2 institutions in 2 countries.

X LiCenter for Primary Health Care Research, Lund University, Malmo, Sweden. xinjun.li@med.lu.se
J Sundquist
K Sundquist
Lund University · SEKarolinska Institutet · SE

Funding

Mothers, Places, and Preterm BirthR01HD052848 · NICHD · LUNDS UNIVERSITET · PI SUNDQUIST, JAN O · 2007 to 2010
$1.8M
NICHD NIH HHS R01 HD052848NICHD NIH HHS R01 HD052848-01
6 · The paper itself

Abstract

backgroundAlthough evidence suggests that some occupations may be a risk factor for small-for-gestational age (SGA) birth, associations between a wide range of maternal and paternal occupations and risk of SGA births remain unclear. Our objective was to analyze the risk of SGA births by parental occupation, including the entire Swedish population of mothers (> or =20 years) and fathers.

methodsWe linked nationwide data (1990-2004) on singletons born to employed mothers to nationwide data on maternal and paternal occupation and other individual-level variables. Information on parental occupations was obtained from the 1990 census. Approximately 95% of SGA births (calculated using normative data) were defined on the basis of ultrasound. Odds ratios of SGA birth were calculated with 95% confidence intervals. Women and men were analyzed separately.

resultsThere were 816,310 first singleton live births during the study period, of which 29,603 were SGA events. Families with low incomes had an increased risk of SGA births. After accounting for maternal age at the infant's birth, period of birth, family income, region of residence, marital status and smoking habits, several maternal occupational groups (including 'mechanics and iron and metalware workers' and 'packers, loaders and warehouse workers') had a significantly higher risk of SGA birth than the reference group (all women in the study population). Among paternal occupational groups, only waiters had an increased risk of SGA birth.

conclusionsThis large-scale follow-up study shows that maternal occupation affects risk of SGA birth, whereas paternal occupation does not seem to have an impact on SGA birth. Further studies are required to examine the specific agents in those maternal occupations that are associated with an increased risk of SGA birth.

Indexed as

Infant, Small for Gestational AgeOccupationsParentsAdultFemaleFollow-Up StudiesHumansInfant, NewbornMalePregnancyRisk FactorsSocioeconomic FactorsSwedenYoung Adult

Identifiers

PMID20133322
PMCPMC2839909
OpenAlexW2114713377

What OpenQuestion holds

Textmetadata
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.