Evidence map›Paper›PMID 29246118›Full record

ArticleBMC pregnancy and childbirth2017

Socioeconomic inequality in periconceptional folic acid supplementation in China: a census of 0.9 million women in their first trimester of pregnancy.

Min Liu, Jing Chen, Jue Liu, Shikun Zhang, Qiaomei Wang, Haiping Shen, Yiping Zhang

Open access · goldAbstract read
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 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 17% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Pooled it
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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

7 authors at 3 institutions in 1 country.

Min LiuDepartment of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, 100191, China. liumin@bjmu.edu.cn.
Jing ChenKey laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital & Institute, Beijing, China.
Jue LiuDepartment of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, 100191, China.
Shikun ZhangDepartment of Maternal and Child Health, National Health and Family Planning Commission of the PRC, Beijing, China.
Qiaomei WangDepartment of Maternal and Child Health, National Health and Family Planning Commission of the PRC, Beijing, China.
Haiping ShenDepartment of Maternal and Child Health, National Health and Family Planning Commission of the PRC, Beijing, China.
Yiping ZhangDepartment of Maternal and Child Health, National Health and Family Planning Commission of the PRC, Beijing, China.
National Health and Family Planning Commission · CNPeking University · CNPeking University Cancer Hospital · CN

Funding

Chinese Association of Maternal and Child Health Studies AMCHS-2014-6
6 · The paper itself

Abstract

backgroundTo assess socioeconomic inequality in periconceptional folic acid supplementation in China.

methodsWe used data of periconceptional folic acid (FA) supplementation of rural Chinese women from the National Free Preconception Health Examination Project from 2010 to 2012 and socioeconomic level data from the National Bureau of Statistics. We used logistic models to assess the associations between the prevalence of taking FA and the sociodemographic characteristics of the participants, the couples, and the socioeconomic levels of their region of residence.

resultsOf the 907,720 included women, 682,315 (75.62%) of the women reported taking FA. The prevalence of FA supplementation was significantly higher in participants aged 21-29 (75.87%) than in those women aged 40-49 (68.44%, p < 0.01). The prevalence of FA supplementation was significantly higher in the region with the highest Per Capita Gross Regional Product than in the regions with lower Per Capita Gross Regional Product (aOR = 12.20 [95% CI:9.54-15.61]). The higher the per capita net income of farmer households in the region, the higher the prevalence of FA supplementation (aOR = 1.95 [95% CI:1.74-2.18]).

conclusionsThe rate of periconceptional FA supplementation among rural Chinese women has increased with the support of China's Health System Reform policy. However, socioeconomic disparities in periconceptional folic acid supplementation remain.

Indexed as

Socioeconomic FactorsAdultCensusesChinaDietary SupplementsFemaleFolic AcidHealthcare DisparitiesHumansLogistic ModelsMiddle AgedPreconception CarePregnancyPregnancy Trimester, FirstPrevalenceRural PopulationFolic AcidVitamin B ComplexChinaEpidemiologyFolic acidSocioeconomic factors

Identifiers

PMID29246118
PMCPMC5732497
OpenAlexW2773094763

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LicenceCC BY
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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.