Evidence map›Paper›PMID 28651523›Full record

ArticleBMC neurology2017

Current smoking is associated with extracranial carotid atherosclerotic stenosis but not with intracranial large artery disease.

Ruijun Ji, Yuesong Pan, Hongyi Yan, Runhua Zhang, Gaifen Liu, Penglian Wang, Yilong Wang, Hao Li, Xingquan Zhao, Yongjun Wang and 1 more

Open access · goldAbstract readMulticenter Study
In one paragraph

Article in BMC neurology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

18 citing papers in PubMed, 42 citations in OpenAlex.

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  13. Genetic Risk Factors of Intracranial Atherosclerosis.Current atherosclerosis reports · 2020
    Review
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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

11 authors at 2 institutions in 1 country.

Ruijun JiDepartment of Neurology, Tiantan Comprehensive Stroke Center, Tiantan Hospital, Capital Medical University, Beijing, China.
Yuesong PanChina National Clinical Research Center for Neurological Diseases, Beijing, China.
Hongyi YanChina National Clinical Research Center for Neurological Diseases, Beijing, China.
Runhua ZhangChina National Clinical Research Center for Neurological Diseases, Beijing, China.
Gaifen LiuDepartment of Neurology, Tiantan Comprehensive Stroke Center, Tiantan Hospital, Capital Medical University, Beijing, China.
Penglian WangDepartment of Neurology, Tiantan Comprehensive Stroke Center, Tiantan Hospital, Capital Medical University, Beijing, China.
Yilong WangDepartment of Neurology, Tiantan Comprehensive Stroke Center, Tiantan Hospital, Capital Medical University, Beijing, China.
Hao LiChina National Clinical Research Center for Neurological Diseases, Beijing, China.
Xingquan ZhaoDepartment of Neurology, Tiantan Comprehensive Stroke Center, Tiantan Hospital, Capital Medical University, Beijing, China.
Yongjun WangDepartment of Neurology, Tiantan Comprehensive Stroke Center, Tiantan Hospital, Capital Medical University, Beijing, China. yongjunwang1962@gmail.com.
Chinese Intracranial Atherosclerosis (CICAS) Study investigators
Capital Medical University · CNNational Clinical Research Center for Digestive Diseases · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAccumulating evidence has shown that cigarette smoking is an important risk factor for ischemic stroke. However, it is not clear about the potential mechanisms through which cigarette smoking affects stroke risk. In the study, we aimed to investigate the relationship between cigarette smoking and the occurrence of extracranial (ECAS) and intracranial atherosclerotic stenosis (ICAS).

methodsWe analyzed patients enrolled in the Chinese intracranial atherosclerosis (CICAS), which was a prospective, multicenter, hospital-based cohort study. Smoking status was classified into never, former and current smoking. For those patients with current smoking, data on time duration (year) and extent (the number of cigarette smoked per day) was recorded and pack year of smoking was calculated. ICAS was evaluated with 3-dimentional time-of-flight MRA and ECAS was evaluated with cervical ultrasonography or contrast-enhanced MRA. Multivariable Logistic regression was performed to identify the association between smoking status and the occurrence of ECAS and ICAS.

resultsA total of 2656 patients (92.7%) of acute ischemic stroke and 208 (7.3%) of transient ischemic attack were analyzed. The mean age was 61.9 ± 11.2 and 67.8% were male. There were 141 (4.9%) patients had only ECAS, 1074 (37.5%) had only ICAS, and 261 (9.1%) had both ECAS and ICAS. Current smoking was significantly associated with the occurrence of ECAS (adjusted OR = 1.47, 95% CI = 1.09-1.99, P < 0.01). In addition, with 1 year of smoking increment, the risk of ECAS increased by 1.1% (adjusted OR = 1.011; 95% CI = 1.003-1.019; P = 0.005); with one cigarette smoked per day increment, the risk of ECAS increased by 1.0% (adjusted OR = 1.010; 95% CI = 1.001-1.020; P = 0.03); and with one pack year of smoking increment, the risk of ECAS increased by 0.7% (adjusted OR = 1.007; 95% CI = 1.002-1.012; P < 0.01). However, no significant association was found between smoking status and the occurrence of ICAS.

conclusionA dose-response relationship was identified between cigarette smoking and the occurrence of ECAS, but not ICAS. Further studies on molecular mechanisms were warranted.

Indexed as

AgedAsian PeopleAtherosclerosisCarotid StenosisCohort StudiesFemaleHumansIntracranial Arterial DiseasesIntracranial ArteriosclerosisIschemic Attack, TransientLogistic ModelsMaleMiddle AgedProspective StudiesRisk FactorsSmokingAssociationExtracranial atherosclerotic stenosisIntracranial atherosclerotic stenosisSmokingStroke

Identifiers

PMID28651523
PMCPMC5485653
OpenAlexW2721561717

What OpenQuestion holds

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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.