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Zhang TX, Duan XC, Cui Y, Zhang Y, Gu M, Wang ZY, Li WY. Clinical significance of miR-9-5p in NSCLC and its relationship with smoking. Front Oncol 2024; 14:1376502. [PMID: 38628672 PMCID: PMC11018953 DOI: 10.3389/fonc.2024.1376502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 03/18/2024] [Indexed: 04/19/2024] Open
Abstract
Purpose Dysregulated expression of microRNA (miRNAs) in lung cancer has been wildly reported. The clinicopathologic significance of miR-9-5p in non-small-cell lung cancer (NSCLC) patients and its effect on NSCLC progression were explored in this study. Patients and methods A total of 76 NSCLC patients were included. miR-9-5p expression was evaluated by real-time quantitative polymerase chain reaction (RT-qPCR). Then, in vitro experiments including cell growth curve assays, colony formation assays, and transwell migration assays were performed. Further clinicopathological and prognostic values were explored using bioinformatics analysis of the TCGA database. Results miR-9-5p expression was significantly increased in tumor tissues (both P < 0.0001). miR-9-5p expression was relatively higher in larger tumors (P = 0.0327) and in lung squamous carcinoma (LUSC) (P = 0. 0143). In addition, miR-9-5p was significantly upregulated in the normal lung tissues of cigarette smokers (P = 0.0099). In vitro, miR-9-5p was correlated with cell proliferation and migration. After that, bioinformatics analysis of the TCGA database indicated that miR-9-5p was correlated with tumor size (P = 0.0022), lymphatic metastasis (P = 0.0141), LUSC (P < 0.0001), and smoking history (P < 0.0001). Finally, a prognostic study indicated high miR-9-5p expression was correlated with poor prognosis in LUAD (P = 0.0121). Conclusion Upregulation of miR-9-5p may have an oncogenic effect in NSCLC and may be related to smoking. The conclusion of this study may help find new prognostic and therapeutic targets for NSCLC and the exploration of the relationship between smoking and lung cancer.
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Affiliation(s)
- Tian-Xiang Zhang
- Department of Thoracic Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Xin-Chun Duan
- Department of Thoracic Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yong Cui
- Department of Thoracic Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Ye Zhang
- Department of Infectious Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Meng Gu
- Cancer Research Center, Beijing Chest Hospital, Capital Medical University/Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Zi-Yu Wang
- Cancer Research Center, Beijing Chest Hospital, Capital Medical University/Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Wei-Ying Li
- Cancer Research Center, Beijing Chest Hospital, Capital Medical University/Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
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Yan F, Eshak ES, Arafa A, Tamakoshi A, Iso H. Vitamin K Intake and Risk of Lung Cancer: The Japan Collaborative Cohort Study. J Epidemiol 2023; 33:536-542. [PMID: 35871570 PMCID: PMC10483107 DOI: 10.2188/jea.je20220063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 07/06/2022] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Limited reports from prospective human studies investigated the possible role of vitamin K in the development of lung cancer although vitamin K's anticarcinogenic activities were verified from several in vitro and in vivo studies. We investigated the associations between total vitamin K intake from food and the development of lung cancer based on this large prospective cohort study. METHODS A validated food frequency questionnaire was used to examine vitamin K intake among 42,166 (16,341 men and 25,825 women) at the Japan Collaborative Cohort Study's baseline (1988-1990). Hazard ratios (HRs) and 95% confidence intervals (CIs) of incident lung cancer were calculated using the Cox proportional hazard regression method based on vitamin K consumption quartiles. RESULTS 430 cases (308 males and 122 women) of lung cancer were documented during a total of 564,127 person-years of follow-up (median follow-up, 14.6 years). Vitamin K consumption was shown to be inversely related to lung cancer risk; the multivariable hazard ratio [HR] for the highest versus lowest quartiles was 0.67 (95% confidence interval [CI], 0.46-0.96; P for trend = 0.010). This relationship appears to be stronger in males (HR 0.62; 95% CI, 0.40-0.96; P for trend = 0.016) than in females (HR 0.82; 95% CI, 0.42-1.61; P for trend = 0.39) (P for interaction = 0.012), and in ever smokers (HR 0.57; 95% CI, 0.36-0.91; P for trend = 0.006) than in never smokers (HR 0.79; 95% CI, 0.40-1.55; P for trend = 0.37) (P for interaction = 0.30). The individuals' age, body mass index, or alcohol consumption status had no effect on the observed connection. CONCLUSION Vitamin K consumption reduces the risk of lung cancer. More research is needed to clarify the molecular processes behind this connection.
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Affiliation(s)
- Fangyu Yan
- Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
- Center for Surveillance, Immunization, and Epidemiologic Research, National Institute of Infectious Diseases, Tokyo, Japan
| | - Ehab S. Eshak
- Department of Public Health and Preventive Medicine, Faculty of Medicine, Minia University, Minia, Egypt
- Advanced Clinical Epidemiology, Medical Data Science, Osaka University Graduate School of Medicine, Osaka, Japan
- Public Health, School of Health, Calvin University, Michigan, USA
| | - Ahmed Arafa
- Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
- Department of Public Health, Faculty of Medicine, Beni-Suef University, Beni-Suef, Egypt
| | - Akiko Tamakoshi
- Department of Public Health, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Hiroyasu Iso
- Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
- Institute for Global Health Policy Research, Bureau of International Health Cooperation, National Center for Global Health and Medicine, Tokyo, Japan
| | - the JACC Study Group
- Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
- Center for Surveillance, Immunization, and Epidemiologic Research, National Institute of Infectious Diseases, Tokyo, Japan
- Department of Public Health and Preventive Medicine, Faculty of Medicine, Minia University, Minia, Egypt
- Advanced Clinical Epidemiology, Medical Data Science, Osaka University Graduate School of Medicine, Osaka, Japan
- Public Health, School of Health, Calvin University, Michigan, USA
- Department of Public Health, Faculty of Medicine, Beni-Suef University, Beni-Suef, Egypt
- Department of Public Health, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
- Institute for Global Health Policy Research, Bureau of International Health Cooperation, National Center for Global Health and Medicine, Tokyo, Japan
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Li D, Shi J, Liang D, Ren M, He Y. Lung cancer risk and exposure to air pollution: a multicenter North China case-control study involving 14604 subjects. BMC Pulm Med 2023; 23:182. [PMID: 37226220 DOI: 10.1186/s12890-023-02480-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 05/16/2023] [Indexed: 05/26/2023] Open
Abstract
BACKGROUND For North Chinese lung cancer patients, there is limited study on the distribution of air pollution and smoking related features based on analyses of large-scale, high-quality population datasets. The aim of the study was to fully analyze risk factors for 14604 Subjects. METHODS Participants and controls were recruited in 11 cities of North China. Participants' basic information (sex, age, marital status, occupation, height, and weight), blood type, smoking history, alcohol consumption, history of lung-related diseases and family history of cancer were collected. PM2.5 concentration data for each year in each city of the study area from 2005 to 2018 were extracted based on geocoding of each person's residential address at the time of diagnosis. Demographic variables and risk factors were compared between cases and matched controls using a univariate conditional logistic regression model. Multivariate conditional logistic regression models were applied to estimate the odds ratio (OR) and 95% confidence interval (CI) for risk factors in univariate analysis. The nomogram model and the calibration curve were developed to predict lung cancer probability for the probability of lung cancer. RESULTS There was a total of 14604 subjects, comprising 7124 lung cancer cases and 7480 healthy controls included in the study. Marital status of unmarried persons, people with a history of lung-related disease, corporate personnel and production /service personnel were protective factors for lung cancer. People younger than 50 years old, people who were smoking and quit smoking, people who had been drinking consistently, people with family history of cancer and PM2.5 exposure were proven to be a risk factor for lung cancer. The risk of lung cancer varied with sex, smoking status and air pollution. Consistent alcohol consumption, persistent smoking and smoking quit were risk factors for lung cancer in men. By smoking status, male was risk factor for lung cancer in never smokers. Consistent alcohol consumption added risk for lung cancer in never smokers. The combined effects of PM2.5 pollution exposure and ever smoking aggravated the incidence of lung cancer. According to air pollution, lung cancer risk factors are completely different in lightly and heavily polluted areas. In lightly polluted areas, a history of lung-related disease was a risk factor for lung cancer. In heavily polluted areas, male, consistent alcohol consumption, a family history of cancer, ever smokers and smoking quit were all risk factors for lung cancer. A nomogram was plotted and the results showed that PM2.5 was the main factor affecting the occurrence of lung cancer. CONCLUSIONS The large-scale accurate analysis of multiple risk factors in different air quality environments and various populations, provide clear directions and guidance for lung cancer prevention and precise treatment.
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Affiliation(s)
- Daojuan Li
- Cancer Institute, the Fourth Hospital of Hebei Medical University, No.12 Jiankang Road, Changan district, Shijiazhuang, 050011, Hebei Province, China
| | - Jin Shi
- Cancer Institute, the Fourth Hospital of Hebei Medical University, No.12 Jiankang Road, Changan district, Shijiazhuang, 050011, Hebei Province, China
| | - Di Liang
- Cancer Institute, the Fourth Hospital of Hebei Medical University, No.12 Jiankang Road, Changan district, Shijiazhuang, 050011, Hebei Province, China
| | - Meng Ren
- Cancer Institute, the Fourth Hospital of Hebei Medical University, No.12 Jiankang Road, Changan district, Shijiazhuang, 050011, Hebei Province, China
| | - Yutong He
- Cancer Institute, the Fourth Hospital of Hebei Medical University, No.12 Jiankang Road, Changan district, Shijiazhuang, 050011, Hebei Province, China.
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Wang X, Wang T, Hua J, Cai M, Qian Z, Wang C, Li H, McMillin SE, Aaron HE, Xie C, Lin H. Histological types of lung cancer attributable to fine particulate, smoking, and genetic susceptibility. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:159890. [PMID: 36334679 DOI: 10.1016/j.scitotenv.2022.159890] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 10/07/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Fine particulate matter (PM2.5), smoking, and genetic factors are associated with lung cancer. However, the relationship between PM2.5, smoking and subtypes of lung cancer remains unclear. Moreover, it is unclear whether genetic risk modifies the impact of PM2.5 and smoking on incident lung cancer. METHODS A total of 298,069 participants from the UK Biobank study without lung cancer at baseline were included in this study. Hazard ratios (HRs) with 95 % confidence intervals (CIs) were estimated using multivariable Cox proportional models for the association of lung cancer and its subtypes with PM2.5, smoking, and genetic risk. Potential gene-smoking or gene-PM2.5 interactions were also estimated. We further estimated population attributable fractions for incident lung cancer. RESULTS During 10.4 years of follow-up, 1683 incident lung cancer cases were identified. Our analysis found that genetic variants, smoking, and PM2.5 were significantly associated with incident lung cancer. For different histological types of lung cancer, the HRs for squamous cell lung carcinoma associated with PM2.5 (per 5 μg/m3 increment) and current smoking were 2.76 (95 % CI: 1.72, 4.42, p < 0.001) and 48.64 (95 % CI: 27.96, 84.61, p < 0.001), while the HRs for lung adenocarcinoma were 1.59 (95 % CI: 1.13, 2.23, p < 0.001) and 9.89 (95 % CI: 7.91, 12.36, p < 0.001), respectively. We further found that participants with high levels of PM2.5 pollution and high genetic risk had the highest risk of incident lung cancer (HR = 1.81, 95 % CI: 1.39, 2.35, p < 0.001), while the interaction between PM2.5 and genetic risk was not statistically significant. We observed that the population attributable fractions of lung cancer attributable to current smoking and high PM2.5 exposure were estimated to be 67.45 % and 17.59 %. CONCLUSION Genetic susceptibility, smoking, and PM2.5 are important risk factors for lung cancer. Both smoking and PM2.5 are more closely associated with an elevated risk of squamous cell lung cancer.
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Affiliation(s)
- Xiaojie Wang
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, China
| | - Tingting Wang
- Department of Public Health, Faculty of Medicine, Macau University of Science and Technology, China
| | - Junjie Hua
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, China
| | - Miao Cai
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, China
| | - Zhengmin Qian
- Department of Epidemiology and Biostatistics, College for Public Health & Social Justice, Saint Louis University, USA
| | - Chongjian Wang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, China
| | - Haitao Li
- Department of Social Medicine and Health Service Management, Health Science Center, Shenzhen University, China
| | | | - Hannah E Aaron
- Department of Epidemiology and Biostatistics, College for Public Health & Social Justice, Saint Louis University, USA
| | - Chuanbo Xie
- Cancer Prevention Center, Sun Yat-sen University Cancer Center, China; State Key Laboratory of Oncology in South China, China; Collaborative Innovation Center for Cancer Medicine, China.
| | - Hualiang Lin
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, China.
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Dai X, Gil GF, Reitsma MB, Ahmad NS, Anderson JA, Bisignano C, Carr S, Feldman R, Hay SI, He J, Iannucci V, Lawlor HR, Malloy MJ, Marczak LB, McLaughlin SA, Morikawa L, Mullany EC, Nicholson SI, O'Connell EM, Okereke C, Sorensen RJD, Whisnant J, Aravkin AY, Zheng P, Murray CJL, Gakidou E. Health effects associated with smoking: a Burden of Proof study. Nat Med 2022; 28:2045-2055. [PMID: 36216941 PMCID: PMC9556318 DOI: 10.1038/s41591-022-01978-x] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 07/28/2022] [Indexed: 12/17/2022]
Abstract
As a leading behavioral risk factor for numerous health outcomes, smoking is a major ongoing public health challenge. Although evidence on the health effects of smoking has been widely reported, few attempts have evaluated the dose-response relationship between smoking and a diverse range of health outcomes systematically and comprehensively. In the present study, we re-estimated the dose-response relationships between current smoking and 36 health outcomes by conducting systematic reviews up to 31 May 2022, employing a meta-analytic method that incorporates between-study heterogeneity into estimates of uncertainty. Among the 36 selected outcomes, 8 had strong-to-very-strong evidence of an association with smoking, 21 had weak-to-moderate evidence of association and 7 had no evidence of association. By overcoming many of the limitations of traditional meta-analyses, our approach provides comprehensive, up-to-date and easy-to-use estimates of the evidence on the health effects of smoking. These estimates provide important information for tobacco control advocates, policy makers, researchers, physicians, smokers and the public.
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Affiliation(s)
- Xiaochen Dai
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA.
- Department of Health Metrics Sciences, School of Medicine, University of Washington, Seattle, WA, USA.
| | - Gabriela F Gil
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Marissa B Reitsma
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Noah S Ahmad
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Jason A Anderson
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Catherine Bisignano
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Sinclair Carr
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Rachel Feldman
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Simon I Hay
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- Department of Health Metrics Sciences, School of Medicine, University of Washington, Seattle, WA, USA
| | - Jiawei He
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- Department of Health Metrics Sciences, School of Medicine, University of Washington, Seattle, WA, USA
| | - Vincent Iannucci
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Hilary R Lawlor
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Matthew J Malloy
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Laurie B Marczak
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Susan A McLaughlin
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Larissa Morikawa
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Erin C Mullany
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Sneha I Nicholson
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Erin M O'Connell
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Chukwuma Okereke
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Reed J D Sorensen
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Joanna Whisnant
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - Aleksandr Y Aravkin
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- Department of Applied Mathematics, University of Washington, Seattle, WA, USA
| | - Peng Zheng
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- Department of Health Metrics Sciences, School of Medicine, University of Washington, Seattle, WA, USA
| | - Christopher J L Murray
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- Department of Health Metrics Sciences, School of Medicine, University of Washington, Seattle, WA, USA
| | - Emmanuela Gakidou
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- Department of Health Metrics Sciences, School of Medicine, University of Washington, Seattle, WA, USA
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Li D, Shi J, Dong X, Liang D, Jin J, He Y. Epidemiological characteristics and risk factors of lung adenocarcinoma: A retrospective observational study from North China. Front Oncol 2022; 12:892571. [PMID: 35992836 PMCID: PMC9389456 DOI: 10.3389/fonc.2022.892571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 07/07/2022] [Indexed: 12/24/2022] Open
Abstract
BackgroundThe main aim of the study was to determine the risk factors of lung adenocarcinoma and to analyze the variations in the incidence of lung adenocarcinoma according to time, sex, and smoking status in North China.MethodsPatients with lung cancer in local household registries diagnosed and treated for the first time in the investigating hospital were enrolled from 11 cities in North China between 2010 and 2017. Baseline characteristics and tumor-related information were extracted from the patients’ hospital medical record, clinical course records, and clinical examination. Some of the variables, such as smoking, alcohol consumption, medical history, and family history of cancer, were obtained from interviews with the enrolled patients. The statistical method used were the chi-square test and multi-factor logistic regression analysis. The time trend was statistically analyzed using Joinpoint regression models, and p values were calculated.ResultsA total of 23,674 lung cancer cases were enrolled. People in severely polluted cities were at higher risk for lung adenocarcinoma (p < 0.001). Most patients with lung adenocarcinoma had no history of lung-related diseases (p = 0.001). Anatomically, lung adenocarcinoma was more likely to occur in the right lung (p < 0.001). Non-manual labor workers were more likely to develop from lung adenocarcinoma than manual workers (p = 0.015). Notably, non-smokers were more likely to develop lung adenocarcinoma than smokers (p < 0.001). The proportion of lung adenocarcinoma increased significantly in Hebei Province (p < 0.001). Among non-smokers, the proportion of lung adenocarcinoma showed a higher rise than in smokers (p < 0.001).ConclusionsLung adenocarcinoma is the most common histological type of lung cancer in North China (Hebei Province), and the proportion of lung adenocarcinoma is increasing, especially among non-smokers. Lung adenocarcinoma is more common in women, severely polluted cities, individuals with no history of lung-related diseases, in the right lung, and in non-smokers. These can serve as a great guide in determining the accuracy of lung adenocarcinoma high-risk groups and lung cancer risk assessment models.
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Analysis of Histopathological Findings of Lung Carcinoma in Czech Black Coal Miners in Association with Coal Workers' Pneumoconiosis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19020710. [PMID: 35055532 PMCID: PMC8775382 DOI: 10.3390/ijerph19020710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 12/28/2021] [Accepted: 01/06/2022] [Indexed: 11/16/2022]
Abstract
Coal miners with coal workers' pneumoconiosis (CWP, J60 according to ICD-10) were previously found to have a significantly higher risk of lung carcinoma compared to the general male population. The presented study aimed to analyze the (i) incidence of lung carcinoma in miners, (ii) histopathological findings in cohorts with and without CWP, and (iii) effect of smoking cessation on the histopathological profile. Analyzed cohorts consisted of miners with (n = 3476) and without (n = 6687) CWP. Data on personal and working history obtained from the medical records were combined with information on lung cancer from the Czech Oncological Register and histopathological findings. Statistical analysis was performed using non-parametric tests and the incidence risk ratio at the significance level of 5%. In 1992-2015, 180 miners (2.7%) without CWP and 169 (4.9%) with CWP, respectively, were diagnosed with lung carcinoma. The risk of lung cancer in miners with CWP was 1.82 (95% CI: 1.48-2.25) times higher than in those without CWP. Squamous cell carcinoma (37%) was the most common histopathological type, followed by adenocarcinoma (22%) and small cell carcinoma (21%). A statistically significant difference between the cohorts (p = 0.003) was found in the histopathological subtypes, with the incidence of small cell carcinoma being 2 times higher in miners without CWP than in those with CWP. Only a few individuals with lung carcinoma were non-smokers. The incidence of small cell carcinoma, which is strongly associated with smoking, is significantly higher in miners without CWP. Smoking constitutes the most important risk factor for developing lung carcinoma even in that cohort. However, CWP remains a very important risk factor.
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Ambient Cumulative PM2.5 Exposure and the Risk of Lung Cancer Incidence and Mortality: A Retrospective Cohort Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182312400. [PMID: 34886127 PMCID: PMC8656990 DOI: 10.3390/ijerph182312400] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/19/2021] [Accepted: 11/22/2021] [Indexed: 01/07/2023]
Abstract
Smoking, sex, air pollution, lifestyle, and diet may act independently or in concert with each other to contribute to the different outcomes of lung cancer (LC). This study aims to explore their associations with the carcinogenesis of LC, which will be useful for formulating further preventive strategies. This retrospective, longitudinal follow-up cohort study was carried out by connecting to the MJ Health Database, Taiwan Cancer Registry database, and Taiwan cause of death database from 2000 to 2015. The studied subjects were persons attending the health check-ups, distributed throughout the main island of Taiwan. Cox proportional hazards regression models were used to investigate the risk factors associated with LC development and mortality after stratifying by smoking status, with a special emphasis on ambient two-year average PM2.5 exposure, using a satellite-based spatiotemporal model at a resolution of 1 km2, and on dietary habit including consumption of fruits and vegetables. After a median follow-up of 12.3 years, 736 people developed LC, and 401 people died of LC-related causes. For never smokers, the risk of developing LC (aHR: 1.32, 95%CI: 1.12–1.56) and dying from LC-related causes (aHR: 1.28, 95%CI: 1.01–1.63) rises significantly with every 10 μg/m3 increment of PM2.5 exposure, but not for ever smokers. Daily consumption of more than two servings of vegetables and fruits is associated with lowering LC risk in ever smokers (aHR: 0.68, 95%CI: 0.47–0.97), and preventing PM2.5 exposure is associated with lowering LC risk for never smokers.
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Lv D, Wang R, Chen M, Li Y, Cao C. Fish Intake, Dietary Polyunsaturated Fatty Acids, and Lung Cancer: Systematic Review and Dose-Response Meta-Analysis of 1.7 Million Men and Women. Nutr Cancer 2021; 74:1976-1985. [PMID: 34668830 DOI: 10.1080/01635581.2021.1982995] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
To determine the association between fish intake and dietary polyunsaturated fatty acids (PUFA) and incidence of lung cancer. We systematically reviewed and meta-analyzed all available studies to quantify the associations of fish and PUFA consumption with risk of lung cancer. Relative risk (RR) with 95% confidence interval (CI) was calculated. 13 population-based prospective cohort studies involving 1,785,000 participants and two randomized control trials were included. Our study demonstrated that dietary PUFA significant reduced risk of lung cancer for men (RR 0.99, 95%CI 0.98 to 1.00) and the U.S. population (RR 0.99, 95%CI 0.98 to 1.00). Dose-response analysis indicated that a 5 g/day increment of dietary PUFA was associated with 5% lower risk of lung cancer (RR 0.95, 95%CI 0.91 to 0.99). In addition, PUFA supplementation is significant improved overall survival in patients with lung cancer (RR 1.98, 95%CI 1.09 to 3.59). Our study showed an inverse association between dietary PUFA and risk of lung cancer in males and among the U.S. population. Although smoking cessation is the single biggest factor associated with lung cancer risk reduction, this study adds to a growing body of evidence that diet may have a role in modestly reducing lung cancer risk.
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Affiliation(s)
- Dan Lv
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Medical School of Ningbo University, Ningbo, China
| | - Ran Wang
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Meiping Chen
- Department of Respiratory and Critical Care Medicine, Ningbo First Hospital, Ningbo, China
| | - Yiting Li
- Department of Respiratory and Critical Care Medicine, Ningbo First Hospital, Ningbo, China
| | - Chao Cao
- Department of Respiratory and Critical Care Medicine, Ningbo First Hospital, Ningbo, China
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Liau CS, Mogan P, Thomas W. Oestrogen actions contribute to female gender-specific risks in the development of lung carcinoma. J Steroid Biochem Mol Biol 2021; 208:105786. [PMID: 33189851 DOI: 10.1016/j.jsbmb.2020.105786] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 10/09/2020] [Accepted: 11/03/2020] [Indexed: 01/10/2023]
Abstract
Lung cancer is increasing in incidence particularly among women, associated with a global change in smoking habits. Steroid hormones, particularly oestrogen exert an influence on tumour progression in tissues where their target receptor is expressed. Oestrogen receptor, particularly ERβ is highly expressed in the lung and becomes more highly expressed in lung carcinogenesis. Genes involved in the process of lung carcinoma progression and signalling cascades linked to invasion and angiogenesis are modulated by oestrogen receptors. This review intends to collate recently published evidence identifying a role for oestrogen in the initiation and progression of lung carcinoma and how these two processes are differentially affected by circulating oestrogens both in women and in men. Circulating oestrogens may be a significant risk factor in women's susceptibility to lung carcinoma and also provide an additional approach for more targeted therapy.
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Affiliation(s)
- Chi Sun Liau
- Perdana University - Royal College of Surgeons in Ireland School of Medicine, Perdana University, Bukit Damansara, Kuala Lumpur, Malaysia
| | - Praveena Mogan
- Perdana University - Royal College of Surgeons in Ireland School of Medicine, Perdana University, Bukit Damansara, Kuala Lumpur, Malaysia
| | - Warren Thomas
- Perdana University - Royal College of Surgeons in Ireland School of Medicine, Perdana University, Bukit Damansara, Kuala Lumpur, Malaysia; Molecular Medicine Laboratories, Royal College of Surgeons in Ireland, Education and Research Centre, Beaumont Hospital, Dublin, Ireland.
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11
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Park B, Kim Y, Lee J, Lee N, Jang SH. Sex Difference and Smoking Effect of Lung Cancer Incidence in Asian Population. Cancers (Basel) 2020; 13:cancers13010113. [PMID: 33396462 PMCID: PMC7794680 DOI: 10.3390/cancers13010113] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 12/20/2020] [Accepted: 12/21/2020] [Indexed: 12/25/2022] Open
Abstract
Simple Summary This study analyzed the sex difference in the effect of smoking exposure on lung cancer in terms of absolute and relative risks despite the increasing lung cancer incidence in Asian female never smokers. Lung cancer risk is positively associated with the duration of smoking, quantity of smoking, and pack-years of smoking, and negatively associated with the number of years since smoking cessation for both sexes. However, higher lung cancer incidence in men than in women with the same level of smoking exposure was observed, suggesting a higher susceptibility for lung cancer in men. Sex should be considered in combination with smoking history in the selection of a lung cancer screening target population. Abstract This study analyzed the sex difference in the effect of smoking exposure on lung cancer in terms of absolute and relative risks despite the increasing lung cancer incidence in Asian female never smokers. A retrospective cohort study was conducted on individuals aged 40–79 years who participated in the national health screening program in 2007 and 2008 with linkage to the Korea Central Cancer Registry records. We evaluated sex differences in the age-standardized incidence rate (ASR) of lung cancer by smoking history and the hazard ratio (HR) after adjusting for potential confounders. ASRs for male and female never smokers were 92.5 and 38.3 per 100,000 person-years, respectively (rate ratio (RR) = 2.4; 95% confidence interval (CI) = 2.3–2.5). ASRs for male and female current smokers with a 30 pack-year smoking history were 305.3 and 188.4 per 100,000 person-years, respectively (RR = 1.6; 95% CI = 1.3–2.0). Smoking was significantly associated with lung cancer risk for both sexes. HRs for former smokers versus never smokers were 1.27 (95% CI = 1.23–1.33) for men and 1.43 (95% CI = 1.16–1.81) for women. HRs for current smokers versus never smokers were 2.71 (95% CI = 2.63–2.79) for men and 2.70 (95% CI = 2.48–2.94) for women. HRs for lung cancer increased similarly in both men and women according to smoking status. However, among Korean individuals with comparable smoking statuses, lung cancer incidence is higher in men than in women. Sex should be considered in combination with smoking history in the selection of a lung cancer screening target population.
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Affiliation(s)
- Boyoung Park
- National Cancer Center, Division of Cancer Prevention and Early Detection, National Cancer Control Institute, Goyang 10408, Korea; (B.P.); (J.L.); (N.L.)
- National Cancer Center, Department of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, Goyang 10408, Korea
- Department of Medicine, Hanyang University College of Medicine, Seoul 04763, Korea
| | - Yeol Kim
- National Cancer Center, Division of Cancer Prevention and Early Detection, National Cancer Control Institute, Goyang 10408, Korea; (B.P.); (J.L.); (N.L.)
- National Cancer Center, Department of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, Goyang 10408, Korea
- Correspondence: (Y.K.); (S.H.J.); Tel.: +82-31-920-1934 (Y.K.); +82-31-380-3718 (S.H.J.); Fax: +82-31-380-3973 (Y.K.); +82-31-920-2189 (S.H.J.)
| | - Jaeho Lee
- National Cancer Center, Division of Cancer Prevention and Early Detection, National Cancer Control Institute, Goyang 10408, Korea; (B.P.); (J.L.); (N.L.)
- National Cancer Center, Department of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, Goyang 10408, Korea
| | - Nayoung Lee
- National Cancer Center, Division of Cancer Prevention and Early Detection, National Cancer Control Institute, Goyang 10408, Korea; (B.P.); (J.L.); (N.L.)
- National Cancer Center, Department of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, Goyang 10408, Korea
| | - Seung Hun Jang
- Department of Pulmonary, Allergy and Critical Care Medicine, Hallym University Sacred Heart Hospital, Anyang 14068, Korea
- Correspondence: (Y.K.); (S.H.J.); Tel.: +82-31-920-1934 (Y.K.); +82-31-380-3718 (S.H.J.); Fax: +82-31-380-3973 (Y.K.); +82-31-920-2189 (S.H.J.)
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12
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Xue X, Asuquo I, Hong L, Gao J, Dong Z, Pang L, Jiang T, Meng M, Fan J, Wen J, Deng H, Zang X, Ma X, Guo R, Qin C, Meng Y, Ma H, Han J, Wang H, Xue Z, Zhao D, Lin D, Pan L. Catalog of Lung Cancer Gene Mutations Among Chinese Patients. Front Oncol 2020; 10:1251. [PMID: 32850378 PMCID: PMC7417348 DOI: 10.3389/fonc.2020.01251] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Accepted: 06/17/2020] [Indexed: 12/29/2022] Open
Abstract
Background: Detailed catalog of lung cancer-associated gene mutations provides valuable information for lung cancer diagnosis and treatment. In China, there has never been a wide-ranging study cataloging lung cancer-associated gene mutations. This study aims to reveal a comprehensive catalog of lung cancer gene mutations in china, focusing on EGFR, ALK, KRAS, HER2, PIK3CA, MET, BRAF, HRAS, and CTNNB1 as major targets. Additionally, we also aim to correlate smoking history, gender, and age distribution and pathological types with various types of gene mutations. Patients and Methods: A retrospective data acquisition was conducted spanning 6 years (2013-2018) among all patients who underwent lung cancer surgeries not bronchial or percutaneous lung biopsy at three major tertiary hospitals. Finally, we identified 1,729 patients who matched our inclusion criteria. Results: 1081 patients (62.49%) harbored EGFR mutation. ALK (n = 42, 2.43%), KRAS (n = 201, 11.62%), CTNNB1 (n = 28, 1.62%), BRAF (n = 31, 1.79%), PIK3CA (n = 51, 2.95%), MET (n = 14, 0.81%), HER2 (n = 47, 2.72%), HRAS (n = 3, 0.17%), and other genes(n = 232, 13.4%). Females expressed 55.38% vs. males 44.62% mutations. Among subjects with known smoking histories, 32.82% smokers, 67.15% non-smokers were observed. Generally, 51.80% patients were above 60 years vs. 48.20% in younger patients. Pathological types found includes LUADs 71.11%, SQCCs 1.68%, ASC 0.75%, LCC 0.58%, SCC 0.35%, ACC 0.17%, and SC 0.06%, unclear 25.19%. Conclusion: We offer a detailed catalog of the distribution of lung cancer mutations. Showing how gender, smoking history, age, and pathological types are significantly related to the prevalence of lung cancer in China.
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Affiliation(s)
- Xinying Xue
- Department of Respiratory and Critical Care, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Idorenyin Asuquo
- Department of Radiology, Jinzhou Medical University, Jinzhou, China
| | - Lei Hong
- Internal Medicine Department, Xuhui Changqiao Community Health Care Centre, Shanghai, China
| | - Jie Gao
- Department of Pathology, Chinese PLA General Hospital, Beijing, China
| | - Zhouhuan Dong
- Department of Pathology, Chinese PLA General Hospital, Beijing, China
| | - Li Pang
- Department of Respiratory and Critical Care, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Tianjiao Jiang
- Department of Radiology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Mingming Meng
- Department of Gastroenterology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Jingbo Fan
- Department of Respiratory and Critical Care, Second Affiliated Hospital of Anhui Medical University, Anhui, China
| | - Jiaxin Wen
- Department of Chest Surgery, Chinese PLA General Hospital, Beijing, China
| | - Hui Deng
- Department of Respiratory and Critical Care, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Xuelei Zang
- Department of Laboratory, Chinese PLA General Hospital, Beijing, China
| | - Xidong Ma
- Department of Respiratory and Critical Care, Affiliated Hospital of Weifang Medical University, Shandong, China
| | - Rui Guo
- Department of Respiratory and Critical Care, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Chong Qin
- Department of Respiratory and Critical Care, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Yao Meng
- Department of Chest Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Heji Ma
- Department of Radiology, Jinzhou Medical University, Jinzhou, China
| | - Jun Han
- Department of Radiology, Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Haijiao Wang
- Department of Respiratory and Critical Care, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Zhiqiang Xue
- Department of Chest Surgery, Chinese PLA General Hospital, Beijing, China
| | - Dahai Zhao
- Department of Respiratory and Critical Care, Second Affiliated Hospital of Anhui Medical University, Anhui, China
| | - Dongliang Lin
- Department of Pathology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Lei Pan
- Department of Respiratory and Critical Care, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
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13
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Zhuang Z, Chen L, Mao Y, Zheng Q, Li H, Huang Y, Hu Z, Jin Y. Diagnostic, progressive and prognostic performance of m 6A methylation RNA regulators in lung adenocarcinoma. Int J Biol Sci 2020; 16:1785-1797. [PMID: 32398949 PMCID: PMC7211177 DOI: 10.7150/ijbs.39046] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 03/05/2020] [Indexed: 12/14/2022] Open
Abstract
Background: N6-methyladenosine (m6A) RNA methylation is dynamically and reversibly regulated by methyl-transferases ("writers"), binding proteins ("readers"), and demethylases ("erasers"). The m6A is restored to adenosine and thus to achieve demethylation modification. The abnormality of m6A epigenetic modification in cancer has been increasingly attended. However, we are rarely aware of its diagnostic, progressive and prognostic performance in lung adenocarcinoma (LUAD). Methods and Results: The expression of 13 widely reported m6A RNA regulators in LUAD and normal samples were systematically analyzed. There were 12 m6A RNA methylation genes displaying aberrant expressions, and an 11-gene diagnostic score model was finally built (Diagnostic score =0.033*KIAA1429+0.116*HNRNPC+0.115*RBM15-0.067* METTL3-0.048*ZC3H13-0.221*WTAP+0.213*YTHDF1-0.132*YTHDC1-0.135* FTO+0.078*YTHDF2+0.014*ALKBH5). Receiver operating characteristic (ROC) analysis was performed to demonstrate superiority of the diagnostic score model (Area under the curve (AUC) was 0.996 of training cohort, P<0.0001; AUC was 0.971 of one validation cohort-GSE75037, P<0.0001; AUC was 0.878 of another validation cohort-GSE63459, P<0.0001). In both training and validation cohorts, YTHDC2 was associated with tumor stage (P<0.01), while HNRNPC was up expressed in progressed tumor (P<0.05). Besides, WTAP, RBM15, KIAA1429, YTHDF1, and YTHDF2 were all up expressed for TP53 mutation. Furthermore, using least absolute shrinkage and selection operator (lasso) regression analysis, a ten-gene risk score model was built. Risk score=0.169*ALKBH5-0.159*FTO+0.581*HNRNPC-0.348* YTHDF2-0.265*YTHDF1-0.123*YTHDC2+0.434*RBM15+0.143*KIAA1429-0.200*WTAP-0.310*METTL3. There existed correlation between the risk score and TNM stage (P<0.01), lymph node stage (P<0.05), gender (P<0.05), living status (P<0.001). Univariate and multivariate Cox regression analyses of relevant clinicopathological characters and the risk score revealed risk score was an independent risk factor of lung adenocarcinoma (HR: 2.181, 95%CI (1.594-2.984), P<0.001). Finally, a nomogram was built to facilitate clinicians to predict outcome. Conclusions: m6A epigenetic modification took part in the progression, and provided auxiliary diagnosis and prognosis of LUAD.
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Affiliation(s)
- Zhizhi Zhuang
- Department of Rheumatology and Immunology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Liping Chen
- Department of Pharmacy, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, China
| | - Yuting Mao
- Second clinical college of medicine, Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Qun Zheng
- Department of Rheumatology and Immunology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Huiying Li
- Department of Respiratory medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Yueyue Huang
- Department of Hematology and Medical Oncology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Zijing Hu
- College of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Yi Jin
- Department of Rheumatology and Immunology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
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14
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Kim SH, Koh SB, Lee CM, Kim C, Kang DR. Indoor Radon and Lung Cancer: Estimation of Attributable Risk, Disease Burden, and Effects of Mitigation. Yonsei Med J 2018; 59:1123-1130. [PMID: 30328328 PMCID: PMC6192894 DOI: 10.3349/ymj.2018.59.9.1123] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 08/17/2018] [Accepted: 08/20/2018] [Indexed: 01/19/2023] Open
Abstract
PURPOSE Exposure to indoor radon is associated with lung cancer. This study aimed to estimate the number of lung cancer deaths attributable to indoor radon exposure, its burden of disease, and the effects of radon mitigation in Korea in 2010. MATERIALS AND METHODS Lung cancer deaths due to indoor radon exposure were estimated using exposure-response relations reported in previous studies. Years of life lost (YLLs) were calculated to quantify disease burden in relation to premature deaths. Mitigation effects were examined under scenarios in which all homes with indoor radon concentrations above a specified level were remediated below the level. RESULTS The estimated number of lung cancer deaths attributable to indoor radon exposure ranged from 1946 to 3863, accounting for 12.5-24.7% of 15623 total lung cancer deaths in 2010. YLLs due to premature deaths were estimated at 43140-101855 years (90-212 years per 100000 population). If all homes with radon levels above 148 Bq/m³ are effectively remediated, 502-732 lung cancer deaths and 10972-18479 YLLs could be prevented. CONCLUSION These findings suggest that indoor radon exposure contributes considerably to lung cancer, and that reducing indoor radon concentration would be helpful for decreasing the disease burden from lung cancer deaths.
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Affiliation(s)
- Si Heon Kim
- Department of Preventive Medicine and Public Health, Ajou University School of Medicine, Suwon, Korea
| | - Sang Baek Koh
- Department of Preventive Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Cheol Min Lee
- Department of Chemical and Biological Engineering, Seokyeong University, Seoul, Korea
| | - Changsoo Kim
- Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Dae Ryong Kang
- Center of Biomedical Data Science/Institute of Genomic Cohort, Yonsei University Wonju College of Medicine, Wonju, Korea.
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15
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Gu F, He Y, Mao Y, Lu S, Zhao C, Li X, Zhou C, Hirsch FR. Risk factors for nicotine dependence in Chinese patients with lung cancer. J Int Med Res 2018; 47:391-397. [PMID: 30304970 PMCID: PMC6384457 DOI: 10.1177/0300060518802738] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Objective Smoking is a poor prognostic factor for lung cancer. Nicotine dependence remains the major cause of failure of smoking cessation. We investigated the risk factors for nicotine dependence in patients with lung cancer. Methods Eligible patients were identified from November 2014 to February 2015. Age, marital status, educational level, annual household income, occupation, histology of lung cancer, tumor stage, smoking status, neuron-specific enolase (NSE) level, drive gene mutations, sleep quality, and patient personality were assessed. Physical nicotine dependence was assessed by the Fagerstrom Test for Nicotine Dependence (FTND). Results In total, 202 smokers were included in this study. Univariate analysis showed that marital status and pain were significantly correlated with nicotine dependence. Pearson’s correlation analysis showed that age at the initiation of smoking, attempts to quit, NSE level, and sleep quality were significantly correlated with FTND scores. Conclusions Pain, more attempts to quit, and poorer sleep quality were significantly associated with nicotine dependence. These risk factors could help to prevent smoking in Chinese patients with lung cancer.
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Affiliation(s)
- Fen Gu
- 1 Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, No. 507 Zhengmin Road, Shanghai, People's Republic of China
| | - Yayi He
- 1 Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, No. 507 Zhengmin Road, Shanghai, People's Republic of China
| | - Yanjun Mao
- 1 Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, No. 507 Zhengmin Road, Shanghai, People's Republic of China
| | - Shiwen Lu
- 1 Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, No. 507 Zhengmin Road, Shanghai, People's Republic of China
| | - Chao Zhao
- 2 Department of Lung Cancer and Immunology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, No. 507 Zhengmin Road, Shanghai, People's Republic of China
| | - Xuefei Li
- 2 Department of Lung Cancer and Immunology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, No. 507 Zhengmin Road, Shanghai, People's Republic of China
| | - Caicun Zhou
- 1 Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University Medical School Cancer Institute, Tongji University School of Medicine, No. 507 Zhengmin Road, Shanghai, People's Republic of China
| | - Fred R Hirsch
- 3 Division of Medical Oncology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
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16
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O'Keeffe LM, Taylor G, Huxley RR, Mitchell P, Woodward M, Peters SAE. Smoking as a risk factor for lung cancer in women and men: a systematic review and meta-analysis. BMJ Open 2018; 8:e021611. [PMID: 30287668 PMCID: PMC6194454 DOI: 10.1136/bmjopen-2018-021611] [Citation(s) in RCA: 133] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 06/13/2018] [Accepted: 07/26/2018] [Indexed: 02/01/2023] Open
Abstract
OBJECTIVES To investigate the sex-specific association between smoking and lung cancer. DESIGN Systematic review and meta-analysis. DATA SOURCES We searched PubMed and EMBASE from 1 January 1999 to 15 April 2016 for cohort studies. Cohort studies before 1 January 1999 were retrieved from a previous meta-analysis. Individual participant data from three sources were also available to supplement analyses of published literature. ELIGIBILITY CRITERIA FOR SELECTING STUDIES Cohort studies reporting the sex-specific relative risk (RR) of lung cancer associated with smoking. RESULTS Data from 29 studies representing 99 cohort studies, 7 million individuals and >50 000 incident lung cancer cases were included. The sex-specific RRs and their ratio comparing women with men were pooled using random-effects meta-analysis with inverse-variance weighting. The pooled multiple-adjusted lung cancer RR was 6.99 (95% Confidence Interval (CI) 5.09 to 9.59) in women and 7.33 (95% CI 4.90 to 10.96) in men. The pooled ratio of the RRs was 0.92 (95% CI 0.72 to 1.16; I2=89%; p<0.001), with no evidence of publication bias or differences across major pre-defined participant and study subtypes. The women-to-men ratio of RRs was 0.99 (95% CI 0.65 to 1.52), 1.11 (95% CI 0.75 to 1.64) and 0.94 (95% CI 0.69 to 1.30), for light, moderate and heavy smoking, respectively. CONCLUSIONS Smoking yields similar risks of lung cancer in women compared with men. However, these data may underestimate the true risks of lung cancer among women, as the smoking epidemic has not yet reached full maturity in women. Continued efforts to measure the sex-specific association of smoking and lung cancer are required.
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Affiliation(s)
- Linda M O'Keeffe
- MRC Integrative Epidemiology Unit at the University of Bristol, Bristol Medical School, University of Bristol, Bristol, UK
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Gemma Taylor
- MRC Integrative Epidemiology Unit at the University of Bristol, Bristol Medical School, University of Bristol, Bristol, UK
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
- UK Centre for Tobacco and Alcohol Studies, School of Experimental Psychology, University of Bristol, Bristol, UK
- Department of Psychology, University of Bath, Bath, UK
| | - Rachel R Huxley
- College of Science, Health and Engineering, La Trobe University, Melbourne, Australia
- The George Institute for Global Health, University of New South Wales, Sydney, New South Wales, Australia
| | - Paul Mitchell
- Olivia Newton-John Cancer and Wellness Centre, Austin Health and Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria, Australia
| | - Mark Woodward
- The George Institute for Global Health, University of New South Wales, Sydney, New South Wales, Australia
- The George Institute for Global Health, University of Oxford, Oxford, UK
- Department of Epidemiology, John Hopkins University, Baltimore, Maryland, USA
| | - Sanne A E Peters
- The George Institute for Global Health, University of Oxford, Oxford, UK
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17
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Seo JS, Kim A, Shin JY, Kim YT. Comprehensive analysis of the tumor immune micro-environment in non-small cell lung cancer for efficacy of checkpoint inhibitor. Sci Rep 2018; 8:14576. [PMID: 30275546 PMCID: PMC6167371 DOI: 10.1038/s41598-018-32855-8] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 09/17/2018] [Indexed: 12/22/2022] Open
Abstract
Characterizing the molecular immune subtype and micro-environment of lung cancer is necessary to understand immunogenic interactions between infiltrating immune and stromal cells, and how tumor cells overcome immune checkpoint blockades. This study seeks to identify computational methodologies for subtyping gene expression-based tumor-immune micro-environment interactions, which differentiate non-small cell lung cancer (NSCLC) into immune-defective and immune-competent subtypes. Here, 101 lung squamous cell carcinomas (LUSCs) and 87 lung adenocarcinomas (LUADs) tumor samples have been analyzed. Several micro-environmental factors differentially induce LUAD or LUSC immune subtypes, as well as immune checkpoint expression. In particular, tumor-associated macrophages (TAMs) are key immune cells play a vital role in inflammation and cancer micro-environments of LUSCs; whereas, regulatory B cells are immunosuppressive and tumorigenic in LUADs. Additionally, cytolytic activity upon CD8+ T cell activation is decreased by the abundance of B cells and macrophages in immune-competent subtypes. Therefore, identifying immune subtypes in lung cancer and their impact on tumor micro-environment will lead to clinical tools for assessing LUADs and LUSCs in patients, as well as maximize the efficacy of immune checkpoint inhibitors.
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Affiliation(s)
- Jeong-Sun Seo
- Precision Medicine Center, Seoul National University Bundang Hospital, Seongnamsi, 13605, Korea. .,Genomic Medicine Institute, Medical Research Center, Seoul National University, Seoul, 03080, Republic of Korea. .,Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea. .,Macrogen Inc., Seoul, 08511, Korea.
| | - Ahreum Kim
- Precision Medicine Center, Seoul National University Bundang Hospital, Seongnamsi, 13605, Korea.,Genomic Medicine Institute, Medical Research Center, Seoul National University, Seoul, 03080, Republic of Korea.,Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Jong-Yeon Shin
- Genomic Medicine Institute, Medical Research Center, Seoul National University, Seoul, 03080, Republic of Korea.,Macrogen Inc., Seoul, 08511, Korea
| | - Young Tae Kim
- Genomic Medicine Institute, Medical Research Center, Seoul National University, Seoul, 03080, Republic of Korea. .,Seoul National University Cancer Research Institute, Seoul, Republic of Korea. .,Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul, 03080, Korea.
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18
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Seong SC, Kim YY, Park SK, Khang YH, Kim HC, Park JH, Kang HJ, Do CH, Song JS, Lee EJ, Ha S, Shin SA, Jeong SL. Cohort profile: the National Health Insurance Service-National Health Screening Cohort (NHIS-HEALS) in Korea. BMJ Open 2017; 7:e016640. [PMID: 28947447 PMCID: PMC5623538 DOI: 10.1136/bmjopen-2017-016640] [Citation(s) in RCA: 519] [Impact Index Per Article: 74.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
PURPOSE The National Health Insurance Service-Health Screening Cohort (NHIS-HEALS) is a cohort of participants who participated in health screening programmes provided by the NHIS in the Republic of Korea. The NHIS constructed the NHIS-HEALS cohort database in 2015. The purpose of this cohort is to offer relevant and useful data for health researchers, especially in the field of non-communicable diseases and health risk factors, and policy-maker. PARTICIPANTS To construct the NHIS-HEALS database, a sample cohort was first selected from the 2002 and 2003 health screening participants, who were aged between 40 and 79 in 2002 and followed up through 2013. This cohort included 514 866 health screening participants who comprised a random selection of 10% of all health screening participants in 2002 and 2003. FINDINGS TO DATE The age-standardised prevalence of anaemia, diabetes mellitus, hypertension, obesity, hypercholesterolaemia and abnormal urine protein were 9.8%, 8.2%, 35.6%, 2.7%, 14.2% and 2.0%, respectively. The age-standardised mortality rate for the first 2 years (through 2004) was 442.0 per 100 000 person-years, while the rate for 10 years (through 2012) was 865.9 per 100 000 person-years. The most common cause of death was malignant neoplasm in both sexes (364.1 per 100 000 person-years for men, 128.3 per 100 000 person-years for women). FUTURE PLANS This database can be used to study the risk factors of non-communicable diseases and dental health problems, which are important health issues that have not yet been fully investigated. The cohort will be maintained and continuously updated by the NHIS.
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Affiliation(s)
| | - Yeon-Yong Kim
- Big Data Steering Department, National Health Insurance Service, Wonju, Korea
| | - Sue K Park
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea
- Department of Biomedical Science, Seoul National University College of Medicine, Seoul, Korea
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Young Ho Khang
- Department of Health Policy and Management, Seoul National University College of Medicine, Seoul, Korea
- Institute of Health Policy and Management, Seoul National University Medical Research Center, Seoul, Korea
| | - Hyeon Chang Kim
- Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Jong Heon Park
- Big Data Steering Department, National Health Insurance Service, Wonju, Korea
| | - Hee-Jin Kang
- Big Data Steering Department, National Health Insurance Service, Wonju, Korea
| | - Cheol-Ho Do
- Big Data Steering Department, National Health Insurance Service, Wonju, Korea
| | - Jong-Sun Song
- Big Data Steering Department, National Health Insurance Service, Wonju, Korea
| | - Eun-Joo Lee
- Big Data Steering Department, National Health Insurance Service, Wonju, Korea
| | - Seongjun Ha
- Big Data Steering Department, National Health Insurance Service, Wonju, Korea
| | - Soon Ae Shin
- Gwanak Branch, National Health Insurance Service, Seoul, Korea
| | - Seung-Lyeal Jeong
- Big Data Steering Department, National Health Insurance Service, Wonju, Korea
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19
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贾 漫, 李 纪, 林 华, 邹 小, 赵 平. [Effect of Smoking on Lung Cancer Histology and Its Epidemiology in Chinese Male]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2017; 20:516-521. [PMID: 28855031 PMCID: PMC5973006 DOI: 10.3779/j.issn.1009-3419.2017.08.03] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 06/02/2017] [Accepted: 06/03/2017] [Indexed: 01/25/2023]
Abstract
BACKGROUND Studies found that there were changes in histological subtypes of lung cancer patients in China. This study investigated the effect of smoking on lung cancer histology and its trend in Chinese male. METHODS Demographic, smoking history and histological information about male lung cancer patients diagnosed or treated from 2000 to 2012 was collected from Cancer Hospital, Chinese Academy of Medical Science. Trends of histological subtypes calculated with annual percentage change (APC). RESULTS A total of 14,106 patients with lung cancer were enrolled, with smoking 11,750 cases and non-smoking 2,356 cases. The main histological type of smoking lung cancer was squamous cell carcinoma (SCC)(39.38%), followed by adenocarcinoma (ADC)(29.85%). Among smokers, the proportion of SCC decreased from 44.19% to 35.50% (APC=-1.9%, P<0.001), however, the ADC increased from 15.25% to 41.85% (APC=6.8%, P<0.001). Adenosquamous carcinoma (ASC) was from 4.13% to 0.72% (APC=-14.9%, P<0.001). In non-smokers, the ADC was 53.86%, and SCC was 16.64%. ADC increased from 38.03% to 67.83% (APC=4.3%, P<0.001). Distributions of LCC and ASC were scattered. CONCLUSIONS Proportion of ADC increased significantly in smoking and non-smoking lung cancer patients, and the relationship between non-smoking factor exposure and lung cancer should be further studied.
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Affiliation(s)
- 漫漫 贾
- />100021 北京,国家癌症中心/中国医学科学院北京协和医学院肿瘤医院,全国肿瘤防治研究办公室National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - 纪宾 李
- />100021 北京,国家癌症中心/中国医学科学院北京协和医学院肿瘤医院,全国肿瘤防治研究办公室National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - 华 林
- />100021 北京,国家癌症中心/中国医学科学院北京协和医学院肿瘤医院,全国肿瘤防治研究办公室National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - 小农 邹
- />100021 北京,国家癌症中心/中国医学科学院北京协和医学院肿瘤医院,全国肿瘤防治研究办公室National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - 平 赵
- />100021 北京,国家癌症中心/中国医学科学院北京协和医学院肿瘤医院,全国肿瘤防治研究办公室National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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20
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Kang E. Assessing Health Impacts of Pictorial Health Warning Labels on Cigarette Packs in Korea Using DYNAMO-HIA. J Prev Med Public Health 2017; 50:251-261. [PMID: 28768403 PMCID: PMC5541276 DOI: 10.3961/jpmph.17.032] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 06/13/2017] [Indexed: 11/09/2022] Open
Abstract
OBJECTIVES This study aimed to predict the 10-year impacts of the introduction of pictorial warning labels (PWLs) on cigarette packaging in 2016 in Korea for adults using DYNAMO-HIA. METHODS In total, four scenarios were constructed to better understand the potential health impacts of PWLs: two for PWLs and the other two for a hypothetical cigarette tax increase. In both policies, an optimistic and a conservative scenario were constructed. The reference scenario assumed the 2015 smoking rate would remain the same. Demographic data and epidemiological data were obtained from various sources. Differences in the predicted smoking prevalence and prevalence, incidence, and mortality from diseases were compared between the reference scenario and the four policy scenarios. RESULTS It was predicted that the optimistic PWLs scenario (PWO) would lower the smoking rate by 4.79% in males and 0.66% in females compared to the reference scenario in 2017. However, the impact on the reduction of the smoking rate was expected to diminish over time. PWO will prevent 85 238 cases of diabetes, 67 948 of chronic obstructive pulmonary disease, 31 526 of ischemic heart disease, 21 036 of lung cancer, and 3972 prevalent cases of oral cancer in total over the 10-year span due to the reductions in smoking prevalence. The impacts of PWO are expected to be between the impact of the optimistic and the conservative cigarette tax increase scenarios. The results were sensitive to the transition probability of smoking status. CONCLUSIONS The introduction of PWLs in 2016 in Korea is expected reduce smoking prevalence and disease cases for the next 10 years, but regular replacements of PWLs are needed for persistent impacts.
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Affiliation(s)
- Eunjeong Kang
- Department of Health Administration and Management, Soonchunhyang University, Asan, Korea
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21
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Azar FE, Azami-Aghdash S, Pournaghi-Azar F, Mazdaki A, Rezapour A, Ebrahimi P, Yousefzadeh N. Cost-effectiveness of lung cancer screening and treatment methods: a systematic review of systematic reviews. BMC Health Serv Res 2017; 17:413. [PMID: 28629461 PMCID: PMC5477275 DOI: 10.1186/s12913-017-2374-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 06/09/2017] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Due to extensive literature in the field of lung cancer and their heterogeneous results, the aim of this study was to systematically review of systematic reviews studies which reviewed the cost-effectiveness of various lung cancer screening and treatment methods. METHODS In this systematic review of systematic reviews study, required data were collected searching the following key words which selected from Mesh: "lung cancer", "lung oncology", "lung Carcinoma", "lung neoplasm", "lung tumors", "cost- effectiveness", "systematic review" and "Meta-analysis". The following databases were searched: PubMed, Cochrane Library electronic databases, Google Scholar, and Scopus. Two reviewers (RA and A-AS) evaluated the articles according to the checklist of "assessment of multiple systematic reviews" (AMSTAR) tool. RESULTS Overall, information of 110 papers was discussed in eight systematic reviews. Authors focused on cost-effectiveness of lung cancer treatments in five systematic reviews. Targeted therapy options (bevacizumab, Erlotinib and Crizotinib) show an acceptable cost-effectiveness. Results of three studies failed to show cost-effectiveness of screening methods. None of the studies had used the meta-analysis method. The Quality of Health Economic Studies (QHES) tool and Drummond checklist were mostly used in assessing the quality of articles. Most perspective was related to the Payer (64 times) and the lowest was related to Social (11times). Most cases referred to Incremental analysis (82%) and also the lowest point of referral was related to Discounting (in 49% of the cases). The average quality score of included studies was calculated 9.2% from 11. CONCLUSIONS Targeted therapy can be an option for the treatment of lung cancer. Evaluation of the cost-effectiveness of computerized tomographic colonography (CTC) in lung cancer screening is recommended. The perspective of the community should be more taken into consideration in studies of cost-effectiveness. Paying more attention to the topic of Discounting will be necessary in the studies.
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Affiliation(s)
| | - Saber Azami-Aghdash
- Road Traffic Injury Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fatemeh Pournaghi-Azar
- Dental and Periodental Research Centre, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alireza Mazdaki
- Health Management and Economics Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Aziz Rezapour
- Health Management and Economics Research Center, Iran University of Medical Sciences, Tehran, Iran.
| | - Parvin Ebrahimi
- Department of Health service Management, School of Health Management and Information Sciences & Health Management and Economics Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Negar Yousefzadeh
- Health Management and Economics Research Center, Iran University of Medical Sciences, Tehran, Iran
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22
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Hong S, Mok Y, Jeon C, Jee SH, Samet JM. Tuberculosis, smoking and risk for lung cancer incidence and mortality. Int J Cancer 2016; 139:2447-55. [PMID: 27521774 DOI: 10.1002/ijc.30384] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 06/30/2016] [Accepted: 08/04/2016] [Indexed: 12/24/2022]
Abstract
Among the exposures associated with risk for lung cancer, a history of tuberculosis (TB) is one potentially important factor, given the high prevalence of TB worldwide. A prospective cohort study was conducted to evaluate the associations of preexisting pulmonary TB with lung cancer incidence and mortality. The cohort consisted of 1,607,710 Korean adults covered by the National Health Insurance System who had a biennial national medical examination during 1997-2000. During up to 16 years of follow-up, there were 12,819 incident cases of lung cancer and 9,562 lung cancer deaths. Using Cox proportional hazards models and controlling for age, cigarette smoking and other covariates, the presence of underlying TB was significantly associated with increased risk for lung cancer incidence (HR 1.37 in men with 95% CI 1.29-1.45; HR 1.49 in women with 95% CI 1.28-1.74) and mortality (HR 1.43 in men with 95% CI 1.34-1.52; HR 1.53 in women with 95% CI 1.28-1.83). We also observed a dose-response relationship between number of cigarettes smoked daily and lung cancer risk. There was no evidence for synergism between a history of TB and smoking. The elevation in risk is relatively modest, particularly in comparison to that from smoking, and a prior history of TB is not likely to be useful risk indicator for clinical purposes. In populations with high prevalence of TB, it can be considered for incorporation into models for lung cancer risk prediction.
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Affiliation(s)
- Seri Hong
- Department of Public Health, Yonsei University Graduate School, Seoul, Republic of Korea.,Department of Epidemiology and Health Promotion, Institute for Health Promotion, Graduate School of Public Health, Yonsei University, Seoul, Republic of Korea
| | - Yejin Mok
- Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD.,Department of Epidemiology and Health Promotion, Institute for Health Promotion, Graduate School of Public Health, Yonsei University, Seoul, Republic of Korea
| | - Christina Jeon
- Department of Public Health, Yonsei University Graduate School, Seoul, Republic of Korea.,Department of Epidemiology and Health Promotion, Institute for Health Promotion, Graduate School of Public Health, Yonsei University, Seoul, Republic of Korea
| | - Sun Ha Jee
- Department of Epidemiology and Health Promotion, Institute for Health Promotion, Graduate School of Public Health, Yonsei University, Seoul, Republic of Korea.
| | - Jonathan M Samet
- Department of Preventive Medicine, Keck School of Medicine, Institute for Global Health, University of Southern California, Los Angeles, CA
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