Evidence map›Paper›PMID 29446554›Full record

Observational studyDiabetes, obesity & metabolism2018

Impact of cigarette smoking on the relationship between body mass index and insulin: Longitudinal observation from the Bogalusa Heart Study.

Ying Li, Tao Zhang, Tianshu Han, Shengxu Li, Lydia Bazzano, Jiang He, Wei Chen

Registry-linked trialAbstract readObservational Study
In one paragraph

Observational study in Diabetes, obesity & metabolism, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00005129 (The Bogalusa Heart Study), which is not on this map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.1field-weighted citation impact, top 14% 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.

NCT00005129 active not recruitingnot on this map

The Bogalusa Heart Study

TypeobservationalSponsorTulane UniversityRan1973 to 2029Enrolled11,737ConditionsAtherosclerosis, Cardiovascular Diseases, Heart Diseases, Coronary Disease
3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 17 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

7 authors at 3 institutions in 2 countries.

Ying LiDepartment of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, China.
Tao ZhangDepartment of Biostatistics, School of Public Health, Shandong University, Jinan, China.
Tianshu HanDepartment of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, China.
Shengxu LiDepartment of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana.
Lydia BazzanoDepartment of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana.
Jiang HeDepartment of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana.
Wei ChenDepartment of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana.ORCID 0000-0003-1566-7943
Tulane University · USHarbin Medical University · CNShandong University · CN

Funding

Tulane COBRE in Cardiometabolic Diseases Clinical Research CoreP20GM109036 · NIGMS · TULANE UNIVERSITY OF LOUISIANA · PI JING CHEN · 2016 to 2026
$25.3M
Tulane Clinical Center for Chronic Renal Insufficiency Cohort StudyU01DK060963 · NIDDK · TULANE UNIVERSITY OF LOUISIANA · PI CHEN, JING, HAMM, L LEE · 2001 to 2025
$13.9M
Childhood CV Risk and Adult CVD Outcomes: an International Long-term Follow-upR01HL121230 · NHLBI · CINCINNATI CHILDRENS HOSP MED CTR · PI BURNS, TRUDY L, CHEN, WEI · 2015 to 2019
$13.3M
EVOLUTION OF CARDIOVASCULAR RISK WITH NORMAL AGINGR01AG016592 · NIA · TULANE UNIVERSITY OF LOUISIANA · PI CHEN, WEI · 2000 to 2015
$11.7M
Lifespan Cardiovascular Risk Exposures and Alzheimer-related brain health: Bogalusa Heart StudyRF1AG041200 · NIA · TULANE UNIVERSITY OF LOUISIANA · PI BAZZANO, LYDIA, CARMICHAEL, OWEN T. · 2019 to 2022
$4.2M
The Role of Vascular Aging in Cognitive and Physical Function - Diversity SupplementR01AG041200 · NIA · TULANE UNIVERSITY OF LOUISIANA · PI BAZZANO, LYDIA · 2012 to 2017
$2.9M
Childhood Secondhand Smoke and Longitudinal Cardiovascular Risk ProfileR01ES021724 · NIEHS · TULANE UNIVERSITY OF LOUISIANA · PI CHEN, WEI · 2012 to 2014
$1.8M
NHLBI NIH HHS R01 HL121230NIA NIH HHS R01 AG016592NIA NIH HHS RF1 AG041200NIDDK NIH HHS U01 DK060963NIEHS NIH HHS R01 ES021724NIGMS NIH HHS P20 GM109036
6 · The paper itself

Abstract

objectivesDespite the inverse association between cigarette smoking and body mass index (BMI), it is unknown whether the effect of smoking on insulin is mediated through decreased BMI. This study aims to examine the temporal relationship between BMI and insulin, the impact of smoking on this relationship and the mediation effect of BMI on the association between smoking and insulin levels.

methodsThe longitudinal cohort consisted of 1121 adults (807 white and 314 black participants, mean age, 42.0 years at follow-up) for whom BMI and fasting insulin were measured twice, with an average follow-up period of 17.1 years. Cross-lagged panel and mediation analysis models were used to examine the temporal relationship between BMI and insulin, and the mediation effect of BMI on the smoking-insulin association.

resultsSmoking was inversely associated with insulin (regression coefficient, -0.073; P = .015 at baseline and -0.121; P < .001 at follow-up), adjusting for age, race and gender. After additional adjustment for follow-up periods, the cross-lagged path coefficient from BMI to insulin (β, 0.226; P < .001) was significantly greater than that from insulin to BMI (β, -0.029; P = .208), with P < .001 for the difference. The path coefficient from BMI to insulin was significantly greater in non-smokers (β, 0.273; P < .001) than in smokers (β, 0.122; P = .046), with P = .013 for the difference. The mediation effect of BMI on the smoking-insulin association was estimated at 53.4% (P = .030) at baseline and 58.7% (P < .001) at follow-up.

conclusionsThese findings suggest that cigarette smoking has a significant impact on the one-directional relationship from BMI to insulin. The insulin-lowering effect of smoking is predominantly mediated through decreased BMI as the result of smoking.

Indexed as

Appetite RegulationInsulin SecretionModels, BiologicalAdultBody Mass IndexCigarette SmokingCohort StudiesCross-Sectional StudiesFemaleHealth SurveysHumansHyperinsulinismInsulinLongitudinal StudiesLouisianaMaleInsulinbody mass indexinsulinmediationsmokingtemporal relationship

Identifiers

PMID29446554
PMCPMC5999532
OpenAlexW2790563068

What OpenQuestion holds

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Registered trials

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.