Evidence map›Paper›PMID 34930157›Full record

ArticleBMC pregnancy and childbirth2021

Association between halitosis and female fecundability in China: a prospective cohort study.

Xiaona Huo, Lin Zhang, Rong Huang, Jiangfeng Ye, Yulin Yang, Hao Zhang, Jun Zhang

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in BMC pregnancy and childbirth, 2021. 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
0.2field-weighted citation impact, top 48% 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

1 citing paper in PubMed, 1 citations in OpenAlex.

  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

7 authors at 5 institutions in 1 country.

Xiaona Huo *Obstetrics and Gynecology Department, International Peace Maternity and Child Health Hospital of China, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China.
Lin Zhang *Obstetrics Department, International Peace Maternity and Child Health Hospital of China, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China.
Rong HuangMOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, 1665 Kong Jiang Road, Shanghai, 200092, China.
Jiangfeng YeMOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, 1665 Kong Jiang Road, Shanghai, 200092, China.
Yulin YangDepartment of Maternal and Child Health Care, Shanghai Municipal Health and Family Planning Commission, 300 Expo Village Road, Shanghai, 200125, China.
Hao ZhangDepartment of Preventive Dentistry, Shanghai Stomatological Hospital, Fudan University, 356 East Beijing Road, Shanghai, 200001, China. haozhang18@foxmail.com.
Jun ZhangMOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, 1665 Kong Jiang Road, Shanghai, 200092, China. junjimzhang@sina.com.
XinHua Hospital · CNInternational Peace Maternity & Child Health Hospital · CNShanghai Jiao Tong University · CNShanghai Municipal Commission of Health and Family Planning · CNShanghai Stomatological Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPeriodontal diseases and poor oral hygiene are potentially associated with decreased female fecundability. Fecundability refers to the probability of conception during a given period measured in months or menstrual cycles. This study aims to examine whether halitosis is associated with female fecundability in a large sample of Chinese women who planned to be pregnant.

methodsIn 2012, a total of 6319 couples came for preconception care in eight districts in Shanghai, China and were followed by telephone contact. Three thousand nine hundred fifteen women who continued trying to be pregnant for up to 24 months remained for final statistical analyses. Halitosis was self-reported at the preconception care visit. Time to pregnancy (TTP) was reported in months and was censored at 24 months. Fecundability ratio (FR) was defined as the ratio of probability of conception among those with and without halitosis. FR and 95% confidence interval (CI) were estimated using the discrete-time Cox model.

results80.1 and 86.1% of women had self-reported clinically confirmed pregnancy within 12 and 24 months, respectively. Halitosis was reported in 8.7% of the women. After controlling for potential confounders, halitosis was associated with a reduced probability of spontaneous conception (for an observation period of 12 months: adjusted FR 0.82, 95% CI 0.72-0.94; for an observation period of 24 months: adjusted FR 0.84, 95% CI 0.74-0.96).

conclusionsHalitosis is associated with reduced fecundability in Chinese women.

Indexed as

FertilityAdultChinaCohort StudiesFemaleFertilizationHalitosisHumansMiddle AgedPregnancyProbabilityProspective StudiesTime-to-PregnancyFecundabilityHalitosisOral healthOral hygieneTime to pregnancy

Identifiers

PMID34930157
PMCPMC8691089
OpenAlexW4200211467

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.