Evidence map›Paper›PMID 25875379›Full record

ArticlePloS one2015

Prenatal and postnatal exposure to phthalate esters and asthma: a 9-year follow-up study of a taiwanese birth cohort.

Hsiu Ying Ku, Pen Hua Su, Hui Ju Wen, Hai Lun Sun, Chien Jen Wang, Hsiao Yen Chen, Jouni J K Jaakkola, Shu-Li Wang, TMICS Group

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
7.1field-weighted citation impact, top 2% 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

38 citing papers in PubMed, 1 synthesis or guideline pooled it, 106 citations in OpenAlex.

  1. Pooled it
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  15. A study on the association of placental and maternal urinary phthalate metabolites.Journal of exposure science & environmental epidemiology · 2023
    Article
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  17. Review
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  20. Prenatal phthalate exposure and early childhood wheeze in the SELMA study.Journal of exposure science & environmental epidemiology · 2022
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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

9 authors at 4 institutions in 2 countries.

Hsiu Ying KuGraduate Institute of Life Science, National Defense Medical Center, Taipei, Taiwan; Division of Environmental Health & Occupational Medicine, National Health Research Institutes, Miaoli, Taiwan.
Pen Hua SuDivision of Genetics, Department of Pediatrics, Chung Shan Medical University Hospital, Taichung, Taiwan.
Hui Ju WenDivision of Environmental Health & Occupational Medicine, National Health Research Institutes, Miaoli, Taiwan.
Hai Lun SunDepartment of Pediatrics, Chung Shan Medical University Hospital, Taichung, Taiwan.
Chien Jen WangDivision of Environmental Health & Occupational Medicine, National Health Research Institutes, Miaoli, Taiwan.
Hsiao Yen ChenDivision of Environmental Health & Occupational Medicine, National Health Research Institutes, Miaoli, Taiwan.
Jouni J K JaakkolaCenter for Environmental and Respiratory Health Research, University of Oulu, Oulu, Finland; Medical Research Center, Oulu, Finland.
Shu-Li WangGraduate Institute of Life Science, National Defense Medical Center, Taipei, Taiwan; Division of Environmental Health & Occupational Medicine, National Health Research Institutes, Miaoli, Taiwan; Department of Public Health, College of Public Health, China Medical University, Taichung, Taiwan; School of Public Health, National Defense Medical Center, Taipei, Taiwan.
TMICS Group
National Health Research Institutes · TWChung Shan Medical University Hospital · TWChina Medical University · TWUniversity of Oulu · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Previous studies have shown that phthalate exposure in childhood is associated with the development of respiratory problems. However, few studies have assessed the relative impact of prenatal and postnatal exposure to phthalates on the development of asthma later in childhood. Therefore, we assessed the impact of prenatal and postnatal phthalate exposure on the development of asthma and wheezing using a Taiwanese birth cohort. A total of 430 pregnant women were recruited, and 171 (39.8%) of them had their children followed when they were aged 2, 5, and 8 years. The International Study of Asthma and Allergies in Childhood questionnaire was used to assess asthma and wheezing symptoms and serum total immunoglobulin E levels were measured at 8 years of age. Urine samples were obtained from 136 women during their third trimester of pregnancy, 99 children at 2 years of age, and 110 children at 5 years. Four common phthalate monoester metabolites in maternal and children's urine were measured using liquid chromatography-electrospray ionization-tandem mass spectrometry. Maternal urinary mono-benzyl phthalate [MBzP] concentrations were associated with an increased occurrence of wheezing in boys at 8 years of age (odds ratio [OR] = 4.95 (95% CI 1.08-22.63)), for upper quintile compared to the others) after controlling for parental allergies and family members' smoking status. Urinary mono-2-ethylhexyl phthalate [MEHP] levels over the quintile at 2-year-old were associated with increased asthma occurrence (adjusted OR = 6.14 (1.17-32.13)) in boys. Similarly, the sum of di-2-ethyl-hexyl phthalate [DEHP] metabolites at 5 years was associated with asthma in boys (adjusted OR = 4.36 (1.01-18.86)). Urinary MEHP in maternal and 5-year-old children urine were significantly associated with increased IgE in allergic children at 8 years. Prenatal and postnatal exposure to phthalate was associated with the occurrence of asthma in children, particularly for boys.

Indexed as

Environmental ExposurePrenatal Exposure Delayed EffectsAdultAsthmaChildChild, PreschoolCohort StudiesEstersFemaleFollow-Up StudiesHumansImmunoglobulin EInfantInfant, NewbornMaleMetabolomeEstersImmunoglobulin Ephthalic acidPhthalic Acids

Identifiers

PMID25875379
PMCPMC4395154
OpenAlexW2015778107

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.