Evidence map›Paper›PMID 31423346›Full record

ArticleBMJ global health2019

Time trends and sociodemographic determinants of preterm births in pregnancy cohorts in Matlab, Bangladesh, 1990-2014.

Anisur Rahman, Monjur Rahman, Jesmin Pervin, Abdur Razzaque, Shaki Aktar, Jamal Uddin Ahmed, Katarina Ekholm Selling, Pernilla Svefors, Shams El Arifeen, Lars Åke Persson

Open access · goldAbstract read
In one paragraph

Article in BMJ global health, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 7% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

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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

10 authors at 3 institutions in 3 countries.

Anisur RahmanMaternal and Child Health Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh.
Monjur RahmanMaternal and Child Health Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh.
Jesmin PervinMaternal and Child Health Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh.
Abdur RazzaqueHealth Systems and Populaiton Studies Division, International Centre for Diarrhoeal Disease Research, Bangaldesh, Dhaka, Bangladesh.
Shaki AktarMaternal and Child Health Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh.
Jamal Uddin AhmedMatlab Health Research Centre, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh.
Katarina Ekholm SellingWomen's and Children's Health, Uppsala Universitet, Uppsala, Sweden.
Pernilla SveforsWomen's and Children's Health, Uppsala Universitet, Uppsala, Sweden.ORCID 0000-0003-2612-2973
Shams El ArifeenMaternal and Child Health Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh.
Lars Åke PerssonDepartment of Disease Control, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, United Kingdom.
International Centre for Diarrhoeal Disease Research · BDUppsala University · SELondon School of Hygiene & Tropical Medicine · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionPreterm birth is the major cause of under-five mortality. Population-based data on determinants and proportions of children born preterm are limited, especially from low-income countries. This study aimed at assessing time trends and social, reproductive and environmental determinants of preterm births based on a population-based pregnancy cohort over 25 years in rural Bangladesh.

methodsIn this cohort study in Matlab, a rural area in Bangladesh, we used data from the Health and Demographic Surveillance System from 1990 to 2014. Gestational age at birth was based on the reported last menstrual period and verified by ultrasound assessments. Preterm birth proportions were assessed within strata of social and reproductive characteristics, and time series analysis was performed with decomposition for trend and seasonality. We also determined the prevented fractions of preterm birth reduction associated with social and demographic changes during the follow-up period.

resultsAnalyses were based on 63 063 live births. Preterm birth decreased from 29% (95% CI 28.6 to 30.1) in 1990-1994 to 11% (95% CI 10.5 to 11.6) in 2010-2014. Low education, older age and multi-parity were associated with higher proportions of preterm births across the study period. Preterm births had a marked seasonal variation. A rapid increase in women's educational level and decrease in parity were associated with the decline in preterm births, and 27% of the reduction observed from 1990 to 2014 could be attributed to these educational and reproductive changes.

conclusionThe reduction in preterm birth was to a large extent associated with the sociodemographic transition, especially changes in maternal education and parity. The persistent seasonal variation in the proportion of preterm birth may reflect the environmental stressors for pregnant women across the study period. Continued investments in girls' education and family planning programmes may contribute to further reduction of preterm births in Bangladesh.

Indexed as

educationparitypreterm birthprevented fractiontime trend

Identifiers

PMID31423346
PMCPMC6688682
OpenAlexW2964604065

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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.