Evidence map›Paper›PMID 31193582›Full record

ArticlePreventive medicine reports2019

Associations of smoking indicators and cotinine levels with telomere length: National Health and Nutrition Examination Survey.

Rumana J Khan, Samson Y Gebreab, Amadou Gaye, Pia R Crespo, Ruihua Xu, Sharon K Davis

Open access · goldAbstract read
In one paragraph

Article in Preventive medicine reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
5.2field-weighted citation impact, top 4% 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

14 citing papers in PubMed, 33 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

6 authors at 1 institution in 1 country.

Rumana J KhanNational Human Genome Research Institute, Social and Behavioral Research Branch, Social Epidemiology Research Unit , Bethesda, MD.
Samson Y GebreabNational Human Genome Research Institute, Social and Behavioral Research Branch, Social Epidemiology Research Unit , Bethesda, MD.
Amadou GayeNational Human Genome Research Institute, Metabolic, Cardiovascular and Inflammatory Disease Genomics Branch, Cardiovascular Disease Section, Bethesda, MD.
Pia R CrespoNational Human Genome Research Institute, Social and Behavioral Research Branch, Social Epidemiology Research Unit , Bethesda, MD.
Ruihua XuNational Human Genome Research Institute, Social and Behavioral Research Branch, Social Epidemiology Research Unit , Bethesda, MD.
Sharon K DavisNational Human Genome Research Institute, Social and Behavioral Research Branch, Social Epidemiology Research Unit , Bethesda, MD.
National Human Genome Research Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The influence of smoking exposure on telomere length with a focus on the impact of race has rarely been discussed. We performed a cross sectional analysis into the associations of smoking indicators with leukocyte telomere length (LTL) by race among 5864 nationally representative sample of US adults (≥20 years). Data from 1999 to 2002 National Health and Nutrition Examination Survey was used for the analysis. Smoking indicators were assessed by interviews and serum cotinine levels. LTL was quantified by polymerase chain reaction. Multiple linear regressions were used to assess the association with adjustment for covariates, sample weights and design effects separately for Whites, Blacks and Mexican Americans. The intensity of smoking, measured by the average number of cigarettes consumed per day, was negatively associated with LTL among Whites (β: -3.87, 95% CI: -5.98 to -1.21) and among Blacks (β: -15.46, 95% CI: -29.79 to -2.12) participants. Compared with cotinine level < 0.05 ng/ml, cotinine level ≥3 ng/ml was associated with shorter LTL (β: -77.92, 95% CI = -143.05 to -11.70) among Whites, but not among Blacks. We found increased number of cigarette consumption to be associated with shorter LTL in both Blacks and Whites, indicating that the impact of smoking on life-shortening diseases could partly be explained by telomere biology. Increased cotinine concentration however, was associated with shorter LTL only among Whites, not among Blacks. This differential relationship that we observed may have implications in interpreting cotinine as an objective biomarker of smoking exposure across races and warrant additional prospective investigation.

Indexed as

bp, Base pairsCDC, Centers for Disease Control and PreventionCI, Confidence intervalCotinineCRP, C-reactive proteinLeukocyte telomere lengthLTL, Leukocyte telomere lengthNCHS, National Center for Health StatisticsNHANES, National Health and Nutrition Examination SurveyRaceSmoking

Identifiers

PMID31193582
PMCPMC6536775
OpenAlexW2945808105

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.