Evidence map›Paper›PMID 27547264›Full record

ArticleTap chi y te cong cong2015

RECENT TRENDS IN GENDER RATIO AT BIRTH IN HANGZHOU, CHINA.

L Tang, L Q Qiu, Kkw Yau, Y V Hui, C W Binns, A H Lee

Abstract read
PubMed Full text at PMC
In one paragraph

Article in Tap chi y te cong cong, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
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.

L TangDepartment of Management Sciences, City University of Hong Kong, Kowloon, Hong Kong; School of Public Health, Curtin University, Perth, WA, Australia.
L Q QiuWomen's Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
Kkw YauSchool of Public Health, Curtin University, Perth, WA, Australia.
Y V HuiHang Seng Management College, New Territories, Hong Kong.
C W BinnsSchool of Public Health, Curtin University, Perth, WA, Australia.
A H LeeSchool of Public Health, Curtin University, Perth, WA, Australia.

Funding

Social Science Training and Research SMS-HMU PartnershipR24HD056691 · NICHD · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI HIRSCH, JENNIFER S, PARKER, RICHARD G · 2007 to 2017
$4.5M
NICHD NIH HHS R24 HD056691PHS HHS
6 · The paper itself

Abstract

introductionHigher than normal sex ratios at birth in China have been reported since the early 1980's. This study aimed to investigate recent trends in sex ratio at birth in Hangzhou, capital of Zhejiang Province in southeast China.

methodsInformation on selected maternal and birth-related characteristics was extracted from the Hangzhou Birth Information Database for all pregnant women who delivered live births during 2005-2014. The sex ratios at birth were calculated after excluding infants with missing data on gender and those born with ambiguous genitalia.

resultsA total of 478,192 male births and 430,852 female births were recorded giving an overall ratio of 111.0. The sex ratio at birth was almost constant at around 110.7 during the period 2005-2008, followed by an increase to the peak at 113.1 in 2010 and then declined back to 109.6 in 2014.

conclusionThe gender ratio at birth in Hangzhou remained unbalanced for the past decade.

Indexed as

birthsChinagender equalityHangzhouSex ratio

Identifiers

PMID27547264
PMCPMC4991638

What OpenQuestion holds

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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.