Evidence map›Paper›PMID 35751047›Full record

ArticleBMC pregnancy and childbirth2022

The trend in delayed childbearing and its potential consequences on pregnancy outcomes: a single center 9-years retrospective cohort study in Hubei, China.

Hui Li, Nawsherwan, Cuifang Fan, Sumaira Mubarik, Ghulam Nabi, Yin Xiao Ping

Open access · goldAbstract read
In one paragraph

Article in BMC pregnancy and childbirth, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 3 pooled it
10.7field-weighted citation impact, top 1% 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

50 citing papers in PubMed, 3 syntheses or guidelines pooled it, 65 citations in OpenAlex.

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  4. The impact of advanced maternal age on the risk of perineal and anal sphincter injuries in nulliparous women.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2026
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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

6 authors at 3 institutions in 2 countries.

Hui Li *Department of Medicine, Taixing People Hospital, Taizhou, Jiangsu, China.
Nawsherwan *Department of Preventive Medicine, School of Health Sciences, Wuhan University, Wuhan, Hubei, China. nawshermkd177@gmail.com.
Cuifang Fan *Department of Obstetrics and Gynecology, Renmin Hospital, Wuhan University, Wuhan, Hubei, China.
Sumaira MubarikDepartment of Epidemiology and Biostatistics, School of Health Sciences, Wuhan University, Wuhan, Hubei, China.
Ghulam NabiInstitute of Nature Conservation, Polish Academy of Sciences, Krakow, Poland.
Yin Xiao PingDepartment of Pediatrics, Taixing People Hospital, Taizhou, Jiangsu, China. 577808762@qq.com.
Wuhan University · CNTaixing People's Hospital · CNInstitute of Nature Conservation · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDue to the advancement of modern societies, the proportion of women who delay childbearing until or beyond 30 years has dramatically increased in the last three decades and has been linked with adverse maternal-neonatal outcomes.

objectiveTo determine the trend in delayed childbearing and its negative impact on pregnancy outcomes. MATERIAL AND

methodsA tertiary hospital-based retrospective study was conducted in Wuhan University Renmin Hospital, Hubei Province, China, during the years 2011-2019. The joinpoint regression analysis was used to find a trend in the delayed childbearing and the multiple binary logistic regression model was used to estimate the association between maternal age and pregnancy outcomes.

resultsBetween 2011 and 2019, the trend in advanced maternal age (AMA ≥35 years) increased by 75% [AAPC 7.5% (95% CI: - 10.3, 28.9)]. Based on maternal education and occupation, trend in AMA increased by 130% [AAPC 11.8% (95% CI: 1.1, 23.7)] in women of higher education level, and 112.5% [AAPC 10.1% (95% CI: 9.4, 10.9)] in women of professional services. After adjusting for confounding factors, AMA was significantly associated with increased risk of gestational hypertension (aOR 1.5; 95% CI: 1.2, 2.1), preeclampsia (aOR 1.6; 95% CI: 1.4, 1.9), sever preeclampsia (aOR 1.7; 95% CI: 1.1, 2.6), placenta previa (aOR 1.8; 95% CI: 1.5, 2.2), gestational diabetes mellitus (aOR 2.5; 95% CI: 2.3, 2.9), preterm births (aOR 1.6; 95% CI: 1.4, 1.7), perinatal mortality (aOR 1.8; 95% CI: 1.3, 2.3), and low birth weight (aOR 1.3; 95% CI: 1.2, 1.4) compared with women aged < 30 years.

conclusionOur findings show a marked increase in delayed childbearing and its negative association with pregnancy outcomes.

Indexed as

Pre-EclampsiaPregnancy ComplicationsPremature BirthReproductive BehaviorFemaleHumansInfant, NewbornMaternal AgePregnancyPregnancy OutcomeRetrospective StudiesAdverse perinatal outcomesDelayed childbearingPregnancy complications

Identifiers

PMID35751047
PMCPMC9233367
OpenAlexW4283391554

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.