Evidence map›Paper›PMID 28728571›Full record

ArticleBMC pregnancy and childbirth2017

The prevalence and risk factors of preterm small-for-gestational-age infants: a population-based retrospective cohort study in rural Chinese population.

Shi Chen, Rong Zhu, Huijuan Zhu, Hongbo Yang, Fengying Gong, Linjie Wang, Yu Jiang, Bill Q Lian, Chengsheng Yan, Jianqiang Li and 3 more

Abstract readEvaluation Study
In one paragraph

Article in BMC pregnancy and childbirth, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

14 citing papers in PubMed.

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  10. Risk Factors for Stillbirth among Pregnant Women Infected with Syphilis in the Zhejiang Province of China, 2010-2016.The Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale · 2021
    Article
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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

13 authors.

Shi ChenDepartment of Endocrinology, Key Laboratory of Endocrinology of Ministry of Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Peking Union Medical College Hospital, No.1, Shuaifuyuan Road, Beijing, Dongcheng district, 100730, China.
Rong ZhuIntern of medicine, PUMCH, Beijing, 100730, China.
Huijuan ZhuDepartment of Endocrinology, Key Laboratory of Endocrinology of Ministry of Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Peking Union Medical College Hospital, No.1, Shuaifuyuan Road, Beijing, Dongcheng district, 100730, China.
Hongbo YangDepartment of Endocrinology, Key Laboratory of Endocrinology of Ministry of Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Peking Union Medical College Hospital, No.1, Shuaifuyuan Road, Beijing, Dongcheng district, 100730, China.
Fengying GongDepartment of Endocrinology, Key Laboratory of Endocrinology of Ministry of Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Peking Union Medical College Hospital, No.1, Shuaifuyuan Road, Beijing, Dongcheng district, 100730, China.
Linjie WangDepartment of Endocrinology, Key Laboratory of Endocrinology of Ministry of Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Peking Union Medical College Hospital, No.1, Shuaifuyuan Road, Beijing, Dongcheng district, 100730, China.
Yu JiangSchool of public health, PUMC, Beijing, 100730, China.
Bill Q LianUniversity of Massachusetts Medical Center, 55 Lake Ave., North Worcester, MA, 01655, USA.
Chengsheng YanHebei Center for women and children's health, Shijiazhuang, 050031, China.
Jianqiang LiSchool of Software Engineering, Beijing University of Technology, Beijing, 100124, China.
Qing WangTsinghua National Laboratory for Info. Science and Technology, Tsinghua University, Beijing, 100084, China.
Shi-Kun ZhangResearch association for women and children's health, Beijing, 100081, China.
Hui PanDepartment of Endocrinology, Key Laboratory of Endocrinology of Ministry of Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Peking Union Medical College Hospital, No.1, Shuaifuyuan Road, Beijing, Dongcheng district, 100730, China. panhui20111111@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPreterm birth and small for gestational age (SGA) are strong indicators of neonatal adverse outcomes. With the growing importance of preterm SGA infants, we aim to evaluate the prevalence and risk factors for preterm SGA in China.

methodWe analyzed the data of parents and infants from a population-based cohort research of the free National Pre-pregnancy Checkups Project (NPCP) in rural China. Only singleton live births that occurred between 24 weeks +0 days and 36 weeks +6 days of pregnancy were included in this study. SGA was defined as birth weight less than the 10th percentile of the reference birth-weight-for-gestational-age population. A multiple logistic regression model was built using the statistically significant variables from the 371 variables in the questionnaire.

resultsA total of 11,474 singleton, preterm, live-birth infants were included. Of the total infants, 317 (2.77%) were preterm SGA infants. A higher risk of preterm SGA infants was observed among mothers who were on oral contraceptives (OR: 8.162, 95% CI: 1.622-41.072), mothers who had syphilis (OR: 12.800, 95% CI: 1.250-131.041), and mothers with a high eosinophil percentage (OR: 13.292, 95% CI: 1.282-135.796). Maternal intake of folic acid at least 3 months before pregnancy (OR: 0.284, 95% CI:0.124-0.654) and paternal intake of egg and meat (OR: 0.097,95% CI:0.030-0.315) were protective factors. Compared with North China, the incidence of preterm SGA infants was higher in South China.

conclusionPreterm SGA infants were associated with both maternal and paternal factors.

Indexed as

Infant, Small for Gestational AgeLive BirthBirth WeightChinaFemaleGestational AgeHumansIncidenceInfant, NewbornLogistic ModelsPregnancyPremature BirthPrevalenceRetrospective StudiesRisk FactorsRural PopulationFolic acid supplementationOral contraceptivePreterm deliverySmall for gestational age

Identifiers

PMID28728571
PMCPMC5520343

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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.