Evidence map›Paper›PMID 30830294›Full record

ArticleJournal of cancer research and clinical oncology2019

Disparity in age at lung cancer diagnosis between current and former smokers.

Barbara G Campling, Zhong Ye, Yinzhi Lai, Ling Li, Voichita Bar-Ad, Maria Werner-Wasik, Bo Lu, Scott W Cowan, Nathaniel R Evans, Inna Chervoneva and 1 more

Open access · greenAbstract read
In one paragraph

Article in Journal of cancer research and clinical oncology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 24% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Breast cancer diagnosis as a window of opportunity for smoking cessation: analysis of changes in smoking behaviour in 736 smoking breast cancer patients.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2026
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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 2 countries.

Barbara G CamplingBC Cancer, Sindi Ahluwalia Hawkins Centre for the Southern Interior, 399 Royal Avenue, Kelowna, BC, V1Y 5L3, Canada. Barbara.Campling@bccancer.bc.ca.ORCID http://orcid.org/0000-0002-7355-7809
Zhong YeDepartment of Medical Oncology, Thomas Jefferson University, 1025 Walnut Street, Suite 727, Philadelphia, PA, 19107, USA.
Yinzhi LaiDepartment of Medical Oncology, Thomas Jefferson University, 1025 Walnut Street, Suite 727, Philadelphia, PA, 19107, USA.
Ling LiDepartment of Medical Oncology, Thomas Jefferson University, 1025 Walnut Street, Suite 727, Philadelphia, PA, 19107, USA.
Voichita Bar-AdDepartment of Radiation Oncology, Thomas Jefferson University, Philadelphia, PA, USA.
Maria Werner-WasikDepartment of Radiation Oncology, Thomas Jefferson University, Philadelphia, PA, USA.
Bo LuDepartment of Radiation Oncology, Thomas Jefferson University, Philadelphia, PA, USA.
Scott W CowanDepartment of Surgery, Thomas Jefferson University, Philadelphia, PA, USA.
Nathaniel R EvansDepartment of Surgery, Thomas Jefferson University, Philadelphia, PA, USA.
Inna ChervonevaDivision of Biostatistics, Department of Pharmacology and Experimental Therapeutics, Thomas Jefferson University, Philadelphia, PA, USA.
Chun WangDepartment of Medical Oncology, Thomas Jefferson University, 1025 Walnut Street, Suite 727, Philadelphia, PA, 19107, USA. Chun.Wang@jefferson.edu.
Thomas Jefferson University · USInterior Health · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeIn a previous study of smoking cessation in veterans with lung cancer, we noted as an incidental finding that current smokers were much younger than former smokers at diagnosis. To confirm and extend this observation, we analyzed the association of smoking status with age at diagnosis and survival of lung cancer patients.

methodsThe Jefferson Cancer Registry collects information on all cancer patients registered at this hospital. Information on smoking status has been recorded since 1995. We determined age at diagnosis and survival of current and former smokers with lung cancer.

results5111 lung cancer cases were identified in the registry from 1995 to 2011 inclusive. Smoking status was recorded in 4687 cases (91.7%). Of these, 1859 (39.7%) were current, 2423 (51.7%) were former, and 405 (8.6%) were never smokers. There was a 6-year difference in median age at lung cancer diagnosis between the current (63 years) and former smokers (69 years) (P < 0.0001). The median survival was 12.1 months for current versus 14.5 months for former smokers (P < 0.0001).

conclusionsThese results confirm and extend our observation that among patients diagnosed with lung cancer, current smokers are younger than former smokers. The possible explanations include higher competing causes of death and increased risk of lung cancer among current smokers as well as increasing proportions of former smokers in older populations. Ongoing exposure to tobacco carcinogens may accelerate the development of lung cancer in continuing smokers. This provides more incentive for smokers to quit at the earliest age possible.

Indexed as

Health Status DisparitiesSmokersSmokingAdultAgedAged, 80 and overAge FactorsFemaleHumansLung NeoplasmsMaleMiddle AgedNeoplasm StagingPublic Health SurveillanceRegistriesSmoking CessationAge disparityCancer registryLung neoplasmsSmokingSmoking cessation

Identifiers

PMID30830294
PMCPMC11810410
OpenAlexW2920366275

What OpenQuestion holds

Textmetadata
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.