Evidence map›Paper›PMID 31994254›Full record

ArticleAddiction (Abingdon, England)2020

Nicotine delivery and users' reactions to Juul compared with cigarettes and other e-cigarette products.

Peter Hajek, Kate Pittaccio, Francesca Pesola, Katie Myers Smith, Anna Phillips-Waller, Dunja Przulj

Open access · hybridAbstract read
In one paragraph

Article in Addiction (Abingdon, England), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 93 papers, 10 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
93citing papers in PubMed, 10 pooled it
14.6field-weighted citation impact, top 1% 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

93 citing papers in PubMed, 10 syntheses or guidelines pooled it, 157 citations in OpenAlex.

  1. Electronic cigarettes for smoking cessation.The Cochrane database of systematic reviews · 2026
    Pooled it
  2. Electronic cigarettes for smoking cessation.The Cochrane database of systematic reviews · 2025
    Pooled it
  3. Electronic cigarettes for smoking cessation.The Cochrane database of systematic reviews · 2025
    Pooled it
  4. Electronic cigarettes for smoking cessation.The Cochrane database of systematic reviews · 2024
    Pooled it
  5. Electronic cigarettes for smoking cessation.The Cochrane database of systematic reviews · 2022
    Pooled it
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  8. Electronic cigarettes for smoking cessation.The Cochrane database of systematic reviews · 2021
    Pooled it
  9. Electronic cigarettes for smoking cessation.The Cochrane database of systematic reviews · 2021
    Pooled it
  10. Electronic cigarettes for smoking cessation.The Cochrane database of systematic reviews · 2020
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  12. Pharmacokinetics and Pharmacodynamics of Inhaled Nicotine Salt and Free-Base Using an E-cigarette: A Randomized Crossover Study.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2024
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33 more citing papers are in PubMed but not listed here.

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 2 institutions in 1 country.

Peter HajekHealth and Lifestyle Research Unit, Queen Mary University of London, London, UK.ORCID 0000-0001-9160-4296
Kate PittaccioHealth and Lifestyle Research Unit, Queen Mary University of London, London, UK.
Francesca PesolaFaculty of Life Sciences and Medicine, King's College London, London, UK.
Katie Myers SmithHealth and Lifestyle Research Unit, Queen Mary University of London, London, UK.ORCID 0000-0003-1837-3924
Anna Phillips-WallerHealth and Lifestyle Research Unit, Queen Mary University of London, London, UK.
Dunja PrzuljHealth and Lifestyle Research Unit, Queen Mary University of London, London, UK.ORCID 0000-0003-1133-8835
Queen Mary University of London · GBKing's College London · GB

Funding

Cancer Research UK 25756Cancer Research UK 27047Cancer Research UK C49913/A25756
6 · The paper itself

Abstract

aimsTo assess the pharmacokinetic (PK) profile of, and users' reactions to, Juul (59 mg nicotine/ml) as an indication of its therapeutic and dependence potential.

designCross-over, within-subjects study in which participants attended after overnight abstinence on separate sessions and smoked a cigarette or used Juul or eight other types of e-cigarettes (EC) ad libitum for 5 minutes. The Juul product used was the version available in the United States that has more nicotine in the e-liquid than the one available in the European Union.

settingLaboratory setting in the United Kingdom.

participantsTwenty dual users (smokers who also vape) provided data on Juul and cigarettes, with eight also providing data on other EC products. MEASUREMENTS: At each session, number of puffs taken was counted during the 5-minute product use period and blood samples were taken at baseline and at 2, 4, 6, 8, 10 and 30 minutes after starting smoking/vaping and analysed for nicotine. Participants also monitored their urges to smoke and rated the products on a range of characteristics.

findingsJuul's PK profile was close to the PK profile of cigarettes [maximum concentration (C

conclusionJuul's PK profile and user ratings suggest that it could be more effective than other EC products in helping smokers to quit smoking, but it may also have a higher potential to generate regular use in non-smokers.

Indexed as

AdultElectronic Nicotine Delivery SystemsEuropean UnionFemaleHumansMaleNicotineSmokersSmokingSmoking CessationTobacco ProductsUnited KingdomUnited StatesVapingNicotineE-cigarettesJuulnicotinenicotine deliverypharmacokinetictobacco

Identifiers

PMID31994254
PMCPMC7318270
OpenAlexW3003935185

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.