Evidence map›Paper›PMID 32676867›Full record

ArticleAnnals of surgical oncology2021

Prognostic Impact of Smoking Period in Patients with Surgically Resected Non-small Cell Lung Cancer.

Shinkichi Takamori, Mototsugu Shimokawa, Taichi Matsubara, Naoki Haratake, Ryo Toyozawa, Naoko Miura, Masafumi Yamaguchi, Takashi Seto, Tetsuzo Tagawa, Tatsuro Okamoto and 3 more

Abstract read
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In one paragraph

Article in Annals of surgical oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.3field-weighted citation impact, top 17% 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, 11 citations in OpenAlex.

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  4. Prognostic Value of Inflammation and Nutrition-Based Scores in Non-Small Cell Lung Cancer.Medical principles and practice : international journal of the Kuwait University, Health Science Centre · 2024
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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

13 authors at 4 institutions in 1 country.

Shinkichi TakamoriDepartment of Thoracic Oncology, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan. takamori@surg2.med.kyushu-u.ac.jp.
Mototsugu ShimokawaDepartment of Biostatistics, Yamaguchi University Graduate School of Medicine, Ube, Japan.
Taichi MatsubaraDepartment of Thoracic Oncology, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan.
Naoki HaratakeDepartment of Thoracic Oncology, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan.
Ryo ToyozawaDepartment of Thoracic Oncology, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan.
Naoko MiuraDepartment of Thoracic Oncology, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan.
Masafumi YamaguchiDepartment of Thoracic Oncology, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan.
Takashi SetoDepartment of Thoracic Oncology, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan.
Tetsuzo TagawaDepartment of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
Tatsuro OkamotoDepartment of Thoracic Oncology, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan.
Mitsuhiro TakenoyamaDepartment of Thoracic Oncology, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan.
Yoshihiko MaeharaDepartment of Surgery, Kyushu Central Hospital of the Mutual Aid Association of Public School Teachers, Fukuoka, Japan.
Masaki MoriDepartment of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
National Hospital Organization Kyushu Cancer Center · JPKyushu University · JPKyushu Central Hospital of the Mutual Aid Association of Public School Teachers · JPYamaguchi University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe pack-year index, which is calculated by multiplying a smoking period by the number of cigarette packs smoked per day, is frequently used to investigate the risk of developing lung cancer. Notably, however, whether the smoking period or the number of packs per day is more predictive of postoperative prognosis remains unclear in non-small cell lung cancer (NSCLC) patients who receive curative lung resection. PATIENTS AND

methodsInitial screening included 2055 consecutive lung cancer patients who had underwent curative lung resection between 2000 and 2016 at a single center in Japan. Data from 1134 NSCLC patients with smoking history were ultimately analyzed. Time-dependent areas under the curve (AUCs) were used to compare diagnostic accuracy.

resultsOn univariate analysis, the number of packs smoked per day was not a significant predictor of disease-free survival (DFS; p = 0.2387) or overall survival (OS; p = 0.1357). On multivariable analysis, smoking period was an independent predictor of DFS and OS (both p < 0.0001). Time-dependent smoking period AUCs were superior to those of number of packs smoked per day. On subgroup analyses, patients with a smoking period ≥ 40 years had significantly shorter DFS and OS than those with a smoking period of < 40 years, independent of sex, clinical stage, and histological type.

conclusionsSmoking period was a significant prognostic indicator in NSCLC patients who underwent curative lung resection, which should be validated in further prospective and/or multicenter studies with large sample sizes.

Indexed as

Carcinoma, Non-Small-Cell LungLung NeoplasmsHumansJapanNeoplasm StagingPrognosisRetrospective StudiesSmokingNon-small cell lung cancerPrognosisSmokingSurgery

Identifiers

PMID32676867
OpenAlexW3043306274

What OpenQuestion holds

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Registered trials

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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.