Evidence map›Paper›PMID 30727983›Full record

ArticleBMC pregnancy and childbirth2019

Assessing the risk factors before pregnancy of preterm births in Iran: a population-based case-control study.

Maryam Soltani, Hamid Reza Tabatabaee, Shahin Saeidinejat, Marzieh Eslahi, Halime Yaghoobi, Ehsan Mazloumi, Abdolhalim Rajabi, Ali Ghasemi, Naeimeh Keyghobadi, Mostafa Enayatrad and 9 more

Open access · goldAbstract readEvaluation Study
In one paragraph

Article in BMC pregnancy and childbirth, 2019. 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
2.2field-weighted citation impact, top 12% 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

11 citing papers in PubMed, 35 citations in OpenAlex.

  1. Impact of Sociodemographic, Clinical, and Genetic Factors andIranian journal of medical sciences · 2025
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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

19 authors at 12 institutions in 1 country.

Maryam SoltaniRazi Clinical Research Development Unit(RCRDU), Birjand University of Medical Sciences(BUMS), Birjand, Iran.
Hamid Reza TabatabaeeResearch Center for Health Sciences, Department of Epidemiology, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran.
Shahin SaeidinejatDepartment of Health Education and Health Promotion, School of Health Sciences, Mashhad University of Medical Sciences, Mashhad, Iran.
Marzieh EslahiDepartment of Epidemiology, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran.
Halime YaghoobiSocial Determinants in Health Promotion Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.
Ehsan MazloumiDepartment of Epidemiology, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran.
Abdolhalim RajabiDepartment of Epidemiology, Faculty of Health, Iran University of Medical Sciences, Tehran, Iran.
Ali GhasemiBirjand University of Medical Sciences, Birjand, Iran.
Naeimeh KeyghobadiDepartment of Biostatistics Epidemiology, Health Faculty, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Mostafa EnayatradEpidemiology Department, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Abed NooriMedical Education, Health Management and Social Development Research Center, Golestan University of Medical Sciences, Gorgan, Iran.
Seyyed Aliasghar HashemiDepartment of Epidemiology, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran.
Fatemeh ZolfizadehHealth Care Management, Mother and Child Welfare Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.
Sepideh MahdaviClinical Research Development Unit, Imam Hossein Hospital, Shahroud University of Medical Sciences, Shahroud, Iran.
Tannaz ValadbeigiClinical Research Development Unit, Imam Hossein Hospital, Shahroud University of Medical Sciences, Shahroud, Iran. Tanazvaladbeigi@gmail.com.
Koorosh EtemadDepartment of Epidemiology, Environmental and Occupational Hazards Control Research Center, Faculty of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Ali TaghipourHealth Sciences Research Centre, Cancer Research Center, Department of Biostatistics and Epidemiology, School of Health, Faculty of Mashhad University of Medical Sciences, Mashhad, Iran.
Cirruse SalehnasabSocial Determinants of Health Research Center, Yasuj University of Medical Sciences, Yasuj, Iran.
Mahmoud HajipourStudent Research Committee, Epidemiology Department, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Shahid Beheshti University of Medical Sciences · IRShiraz University of Medical Sciences · IRBirjand University of Medical Sciences · IRHormozgan University of Medical Sciences · IRMashhad University of Medical Sciences · IRGolestan University of Medical Sciences · IRHamedan University of Medical Sciences · IRImam Hossein Hospital · IRIran University of Medical Sciences · IRShahid Sadoughi University of Medical Sciences and Health Services · IRShahroud University of Medical Sciences · IRYasuj University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPreterm birth is a major cause of prenatal and postnatal mortality particularly in developing countries. This study investigated the maternal risk factors associated with the risk of preterm birth.

methodsA population-based case-control study was conducted in several provinces of Iran on 2463 mothers referred to health care centers. Appropriate descriptive and analytical statistical methods were used to evaluate the association between maternal risk factors and the risk of preterm birth. All tests were two-sided, and P values < 0.05 were considered to be statistically significant.

resultsThe mean gestational age was 31.5 ± 4.03 vs. 38.8 ± 1.06 weeks in the case and control groups, respectively. Multivariate regression analysis showed a statistically significant association between preterm birth and mother's age and ethnicity. Women of Balooch ethnicity and age ≥ 35 years were significantly more likely to develop preterm birth (OR: 1.64; 95% CI: 1.01--2.44 and OR: 9.72; 95% CI: 3.07-30.78, respectively). However, no statistically significant association was observed between preterm birth and mother's place of residence, level of education, past history of cesarean section, and BMI.

conclusionDespite technological advances in the health care system, preterm birth still remains a major concern for health officials. Providing appropriate perinatal health care services as well as raising the awareness of pregnant women, especially for high-risk groups, can reduce the proportion of preventable preterm births.

Indexed as

Maternal AgeAdultCase-Control StudiesEthnicityFemaleGestational AgeHumansInfant, NewbornIranLogistic ModelsMultivariate AnalysisPregnancyPremature BirthRisk FactorsYoung AdultCase-controlIranPreterm birthRisk factor

Identifiers

PMID30727983
PMCPMC6364407
OpenAlexW2922371520

What OpenQuestion holds

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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.