{"title":"Systematic review and analysis of self-efficacy in sun protection measurement instruments.","authors":"Jeanne M Ward, Frances Hardin-Fanning","doi":"10.1097/CEJ.0000000000000879","DOIUrl":"10.1097/CEJ.0000000000000879","url":null,"abstract":"<p><strong>Objective: </strong>The objective of this study was toidentify and appraise available sun protection self-efficacy instruments and synthesize information.</p><p><strong>Data source: </strong>A systematic search of electronic databases from 2005 to 2023 included PubMed, CINAHL, Embase and PsycINFO .</p><p><strong>Background: </strong>While instruments have been developed to evaluate sun-protective behaviors and self-efficacy separately, sun-protection self-efficacy instruments have yet to be widely studied. Self-efficacy is an essential antecedent to performing health-related behaviors or practices that can promote or hinder the health of individuals and groups.</p><p><strong>Study inclusion and exclusion criteria: </strong>Studies randomized control trials or descriptive studies that used self-efficacy measurement tools to evaluate behaviors, intentions, and sun protection knowledge were included in this review. Sun protection surveys that targeted providers or parents and non-English articles were excluded.</p><p><strong>Data extraction: </strong>Data were extracted by one independent researcher.</p><p><strong>Data synthesis: </strong>Fifteen studies met the inclusion criterion and included 10 scales of self-efficacy in sun protection. Study design and purpose, and the instrument's validity and reliability statistics, including Cronbach's alphas, were extracted.</p><p><strong>Results: </strong>The two-factor self-efficacy in sun protection scale was the most common measure for primary prevention, with acceptable reliability and validity. However, other instruments also showed reliable psychometric properties, especially measures of sunscreen self-efficacy.</p><p><strong>Conclusion: </strong>More research in self-efficacy measurement is warranted to examine specific populations and determine the appropriate constructs of self-efficacy. It is crucial to design evidence-based interventions that affect self-efficacy, are measured by a reliable, valid instrument, and have the potential to increase sun-protective and screening behaviors.</p>","PeriodicalId":11830,"journal":{"name":"European Journal of Cancer Prevention","volume":" ","pages":"390-399"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139905315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Claudio Pelucchi, Carlo La Vecchia, Rossella Bonzi, Eva Negri, Giovanni Corso, Stefania Boccia, Paolo Boffetta, M Constanza Camargo, Maria Paula Curado, Nuno Lunet, Jesus Vioque, Zuo-Feng Zhang
{"title":"The global gastric cancer consortium: an update from the Stomach cancer Pooling (StoP) project.","authors":"Claudio Pelucchi, Carlo La Vecchia, Rossella Bonzi, Eva Negri, Giovanni Corso, Stefania Boccia, Paolo Boffetta, M Constanza Camargo, Maria Paula Curado, Nuno Lunet, Jesus Vioque, Zuo-Feng Zhang","doi":"10.1097/CEJ.0000000000000874","DOIUrl":"10.1097/CEJ.0000000000000874","url":null,"abstract":"<p><p>We updated to December 2023 the main findings of the stomach cancer pooling (StoP) project including about 13 000 cases and 31 000 controls from 29 case-control and 5 nested studies. The StoP project quantified more precisely than previously available the positive associations of tobacco smoking, high alcohol consumption, meat intake, selected occupations (e.g. agricultural and miners), gastric ulcer and family history with gastric cancer and the inverse associations with socioeconomic status and selected aspects of diet (fruits, including citrus fruits, vegetables, including allium and mushrooms, and polyphenols). No consistent associations were found with coffee, yoghurt and leisure-time physical activity, metformin or proton pump inhibitors use.</p>","PeriodicalId":11830,"journal":{"name":"European Journal of Cancer Prevention","volume":" ","pages":"433-437"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139905316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Association of metformin and statin uses with the prognosis of colon cancer: a meta-analysis.","authors":"Yanyan Xu, Hao Che, Jiang Liu, Pingjiang Ye","doi":"10.1097/CEJ.0000000000000872","DOIUrl":"10.1097/CEJ.0000000000000872","url":null,"abstract":"<p><strong>Background: </strong>Metformin and statins are commonly used globally for the treatment of type 2 diabetes mellitus and dyslipidemia, respectively. Recently, multiple novel pathways have been discovered, which may contribute to the treatment of various types of cancer. Several meta-analysis studies have reported that the use of metformin or statins is associated with a lower risk of colon cancer compared to nonusers. In this study, our aim was to perform a meta-analysis and investigate the prognostic roles of these two medications in colon cancer.</p><p><strong>Methods: </strong>To identify relevant articles, literature searches were performed in the PubMed and Web of Science databases using a combination of keywords related to metformin, statins and colon cancer prognosis until August 2023. The study utilized STATA 12.0 software (Stata Corporation, College Station, Texas, USA) to compute all the hazard ratios (HRs) and 95% confidence intervals (CIs) regarding the association between metformin or statin uses and prognostic-related outcomes.</p><p><strong>Results: </strong>Our analysis revealed that the use of metformin was associated with a significantly lower overall mortality of colon cancer (HR = 0.63; 95% CI = 0.51-0.77; I2 = 94.9%; P < 0.001), as well as lower cancer-specific mortality of colon cancer (HR = 0.68; 95% CI = 0.50-0.94; I2 = 91.9%; P < 0.001). Similarly, the use of statins was also associated with a lower overall mortality of colon cancer (HR = 0.68; 95% CI = 0.60-0.78; I2 = 93.8%; P < 0.001), as well as a lower cancer-specific mortality of colon cancer (HR = 0.74; 95% CI = 0.67-0.81; I2 = 82.2%; P < 0.001).</p><p><strong>Conclusion: </strong>Our meta-analysis study suggests that statins and metformin may have potential as adjuvant agents with significant benefits in the prognosis of colon cancer.</p>","PeriodicalId":11830,"journal":{"name":"European Journal of Cancer Prevention","volume":" ","pages":"414-424"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139432168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Monireh Sadat Seyyedsalehi, Giulia Collatuzzo, Federica Teglia, Paolo Boffetta
{"title":"Occupational exposure to diesel exhaust and head and neck cancer: a systematic review and meta-analysis of cohort studies.","authors":"Monireh Sadat Seyyedsalehi, Giulia Collatuzzo, Federica Teglia, Paolo Boffetta","doi":"10.1097/CEJ.0000000000000876","DOIUrl":"10.1097/CEJ.0000000000000876","url":null,"abstract":"<p><p>Exposure to diesel exhaust (DE) and other fossil fuels in the workplace can cause several health effects including cancer. We conducted a systematic review and meta-analysis of cohort studies examining the association between occupational DE exposure and the risk of head and neck cancer (HNC), including cancer of the oral cavity, pharynx and larynx. We included cohort studies mentioned in the Monograph of the International Agency for Research on Cancer, 2014, on DE. Forest plots of relative risk (RR) were constructed for HNC overall and its anatomical subtypes. A random-effects model was used to address heterogeneity between studies. Fifteen articles were included after removing duplicates and irrelevant reports. The summary RR for DE exposure was 1.08 [95% confidence interval (CI) = 1.01-1.17, P heterogeneity = <0.001] for HNC overall, 0.98 (95% CI = 0.87-1.11) for oral cavity, 1.05 (95% CI = 0.77-1.43) for pharyngeal, 1.15 (95% CI = 0.96-1.38) for oral cavity and pharyngeal combined, and 1.13 (95% CI = 1.03-1.24) for laryngeal cancer. There were elevated RRs for incidence studies of HNC (RR = 1.13; 95% CI = 1.05-1.22, P = 0.001), European studies (RR = 1.13; 95% CI = 1.05-1.23, P = 0.001), and female studies (RR = 1.77; 95% CI = 1.31-2.39, P = 0.003). Our study suggested an association between occupational DE exposure and the risk of HNC, particularly laryngeal cancer. Although residual confounding cannot be ruled out, our results support the importance of controlling occupational DE exposure.</p>","PeriodicalId":11830,"journal":{"name":"European Journal of Cancer Prevention","volume":" ","pages":"425-432"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140179432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ivy Akinyi, Ogol Japheth Ouma, Sylvester Ogutu, Eric Ogola, Jane Owenga, George Ayodo, Dicken Omondi, Shehu Shagari Awandu, Davy Vanden Broeck, Nina Redzic, Ana Rita Pereira, Johannes Bogers
{"title":"HPV infection patterns and viral load distribution: implication on cervical cancer prevention in Western Kenya.","authors":"Ivy Akinyi, Ogol Japheth Ouma, Sylvester Ogutu, Eric Ogola, Jane Owenga, George Ayodo, Dicken Omondi, Shehu Shagari Awandu, Davy Vanden Broeck, Nina Redzic, Ana Rita Pereira, Johannes Bogers","doi":"10.1097/CEJ.0000000000000920","DOIUrl":"https://doi.org/10.1097/CEJ.0000000000000920","url":null,"abstract":"<p><p>Human papillomavirus (HPV) coinfection remains common globally. However, its clinical significance compared to mono-infection remains controversial. Further, the epidemiology of HPV genotype combination in coinfection is not well studied in Kenya. . Between June and August 2023, a cross-sectional facility-based survey enrolled 434 women aged 16-68 years using purposive sampling strategy. Structured questionnaire was obtained from each woman regarding demographic and sexual behavior characteristics. Cervical specimen was collected from each participant and analyzed using RIATOL assay to determine HPV genotypes and viral load. Overall, HPV 52 was the most frequently detected HPV strain. The mean HPV viral load was elevated among coinfected women than those with mono-infection but there was no evidence to support differences in viral load in the two groups (P = 0.113). Mono-infection was common (58.52%). HPV 16 was noted to have a near equal presence both in mono-infection and coinfection (52.17% and 47. 83%), respectively. HPV 33 (alpha 9) and 45 (alpha 7) had the greatest preference for each other compared to all other HPV interactions. HPV 52 is the most prevalent HPV in the population supporting the need for the nonavalent HPV vaccine. Mono-infection with HPV 16 remains common corroborating the relevance of bivalent vaccine in resource limited setting where nonavalent vaccines may be unavailable. The frequent coinfection preference of HPV 33 and 45 (alpha 9 and alpha 7, respectively) pauses the need for further concurrent characterization. HPV vaccination and education on safe sexual behaviors is key in reducing HPV coinfection.</p>","PeriodicalId":11830,"journal":{"name":"European Journal of Cancer Prevention","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142125181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Celmira Laza-Vásquez, Montserrat Rué-Monné, José Luís Fougo, Bárbara Peleteiro
{"title":"Comparison of the differential effect of participation in breast cancer screening program versus opportunistic screening or symptomatic detection on tumour characteristics.","authors":"Celmira Laza-Vásquez, Montserrat Rué-Monné, José Luís Fougo, Bárbara Peleteiro","doi":"10.1097/CEJ.0000000000000919","DOIUrl":"https://doi.org/10.1097/CEJ.0000000000000919","url":null,"abstract":"<p><strong>Objectives: </strong>The success of a breast cancer screening program is highly dependent on adherence. We aimed to compare the differential effect of participation in breast cancer screening program versus opportunistic screening or symptomatic detection on tumour characteristics.</p><p><strong>Methods: </strong>We included women referred to our Breast Centre in 2015-2021: 321 from the breast cancer screening group (group 1) and 422 through opportunistic screening or due to symptomatic detection (group 2). We compared data on sociodemographics, breast cancer detection, clinical features and tumour characteristics.</p><p><strong>Results: </strong>A total of 10.6% of women in group 1 had breast symptoms and 63.8% had breast signs, with group 2 presenting higher proportions (57.6 and 77.8%, respectively, P < 0.001). The median tumour size in group 1 was smaller compared with group 2 (14 vs 17 mm, P < 0.001). A total of 8.7% of women in group 1 had nodal involvement whereas in group 2 the proportion corresponded to 19.0% (P < 0.001). No women in group 1 were diagnosed with metastasis, while metastases were found in 2.4% of those from group 2 (P = 0.005). There were no significant differences in molecular subtype of invasive tumours between the two groups.</p><p><strong>Conclusion: </strong>The tumour characteristics of women who participated in the breast cancer screening program showed in almost all characteristics more favourable results in comparison with the group who underwent opportunistic screening or sought care due to symptoms. The lower clinical stage observed in those referred from the organised program reaffirms that it is an effective measure for early detection, diagnosis, and treatment.</p>","PeriodicalId":11830,"journal":{"name":"European Journal of Cancer Prevention","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142125180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Carbohydrate quality indices and lung cancer risk: a case-control study from Iran.","authors":"Milad Mohammadzadeh, Fatemeh Abdi, Melika Mamaghanian, Amin Paydareh, Alireza Bahrami, Zahra Sheikhi, Ehsan Hejazi","doi":"10.1097/CEJ.0000000000000913","DOIUrl":"https://doi.org/10.1097/CEJ.0000000000000913","url":null,"abstract":"<p><p>Considering that carbohydrates play an important role in supplying the body with energy and exhibit diverse mechanisms that can either prevent or stimulate cancer, we hypothesize that the quality of carbohydrate intake may be associated with cancer risk, including lung cancer. This hospital-based case-control study was conducted on 135 newly diagnosed lung cancer patients, and 237 healthy age- and sex-matched hospitalized controls. We used a valid and reliable 148-item Food Frequency Questionnaire to collect the dietary intake of subjects. Multivariate logistic regression was used to estimate the association between carbohydrate quality indices and the odds of lung cancer. After adjustment for confounding variables, the high glycemic index appears to be an increased risk factor for lung cancer [odds ratio (OR) = 2.51, 95% confidence interval (CI): 1.28-4.91]. No statistically significant association was found between glycemic load and lung cancer (OR = 2.51, 95% CI: 0.98-6.43). In contrast, the carbohydrate quality index (OR = 0.23, 95% CI: 0.11-0.48) and low-carbohydrate diet score (OR = 0.17, 95% CI: 0.08-0.36), were associated with a decrease in the risk of lung cancer. In summary, our study showed that a high glycemic index is a risk factor for lung cancer, however carbohydrate quality index and low-carbohydrate diet score is a dietary approach to reduce the risk of lung cancer.</p>","PeriodicalId":11830,"journal":{"name":"European Journal of Cancer Prevention","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141987665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhongge Wang, Ruirui Chen, Lizhen Zhang, Yarong Chen, Jing Li, Siyu Li, Lulu Xu, Yujia Hu, Yana Bai
{"title":"Association between metabolic syndrome and the risk of colorectal cancer: a prospective study in China.","authors":"Zhongge Wang, Ruirui Chen, Lizhen Zhang, Yarong Chen, Jing Li, Siyu Li, Lulu Xu, Yujia Hu, Yana Bai","doi":"10.1097/CEJ.0000000000000863","DOIUrl":"10.1097/CEJ.0000000000000863","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the correlation between metabolic syndrome (MetS) and its components on the incidence of colorectal cancer (CRC) based on data from Jinchang Cohort.</p><p><strong>Methods: </strong>This is a large prospective cohort study. Between 2011 and 2020, a total of 43 516 individuals from Jinchang Cohort were included for this study. Hazard ratios (HRs) with 95% confidence intervals (CIs) for CRC according to MetS were calculated with the Cox proportional hazard models. The restricted cubic spine models with four knots were conducted to fit the dose-response relationships.</p><p><strong>Results: </strong>MetS was associated with increased risk of CRC (n = 141; HR: 1.64, 95% CI: 1.15-2.33) after adjusting for confounding factors (age, sex, education level, family history of CRC, smoking index and alcohol index). Participants with hyperglycemia had a significantly higher risk of developing incident CRC (HR: 1.70; 95% CI: 1.19-2.43). The positive association between MetS and CRC was observed in males (HR: 1.76; 95% CI: 1.17-2.63), but not in females (HR: 1.24; 95% CI: 0.59-2.64). Furthermore, linear dose-response relationship was found between fasting plasma glucose (FPG) and CRC risk in males ( Poverall < 0.05, Pnon-linear = 0.35). When stratified by smoke and drink, MetS was found to increase the incidence of CRC only in the smoke (HR: 2.07, 95% CI: 1.35-3.18) and drink (HR: 2.93, 95% CI: 1.51-5.69) groups.</p><p><strong>Conclusion: </strong>MetS was associated with a higher risk of CRC incidence. Hyperglycemia lended strong support to the role of MetS in new-onset CRC, especially in males. Other components of MetS were not found to be associated with increased risk of CRC.</p>","PeriodicalId":11830,"journal":{"name":"European Journal of Cancer Prevention","volume":" ","pages":"347-354"},"PeriodicalIF":2.4,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139905312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Dietary insulin indices and low-carbohydrate diet and the odds of colorectal cancer: a case-control study.","authors":"Alireza Bahrami, Karim Parastouei, Maryam Taghdir, Mojtaba Ghadyani","doi":"10.1097/CEJ.0000000000000867","DOIUrl":"10.1097/CEJ.0000000000000867","url":null,"abstract":"<p><strong>Background: </strong>Regarding the role of insulin and insulin-inducing dietary factors in some cancers' etiology, we hypothesized that the risk of colorectal cancer may be lessened by following a lower carbohydrate and insulinogenic diet. Therefore, we performed this study to explore the association between a low-carbohydrate diet and insulin indices and the odds of colorectal cancer.</p><p><strong>Method: </strong>This hospital-based case-control study was conducted on 150 newly diagnosed colorectal cancer patients and 300 healthy age- and sex-matched hospitalized controls. A valid and reliable food frequency questionnaire was used to calculate the insulin indices and low-carbohydrate diet score. Multivariate logistic regression was used to estimate the association between insulin indices and low-carbohydrate diet and the odds of colorectal cancer.</p><p><strong>Result: </strong>After adjusting for potential confounders, individuals in the highest tertile of insulin indices had a higher risk of colorectal cancer (OR insulin index = 3.46; 95% CI, 2.00-5.96; OR insulin load = 2; 95% CI, 1.17-3.41). No association was found between a low-carbohydrate diet and colorectal cancer (OR = 1.55; 95% CI, 0.85-2.84).</p><p><strong>Conclusion: </strong>Current results demonstrated that a high insulinemic diet was associated with a higher risk of colorectal cancer.</p>","PeriodicalId":11830,"journal":{"name":"European Journal of Cancer Prevention","volume":" ","pages":"363-367"},"PeriodicalIF":2.4,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139377390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Significance of metastatic lymph nodes ratio in overall survival for patients with resected nonsmall cell lung cancer: a retrospective cohort study.","authors":"Xiaoping Lin, Jianfeng Yao, Baoshan Huang, Tebin Chen, Liutian Xie, Rongfu Huang","doi":"10.1097/CEJ.0000000000000868","DOIUrl":"10.1097/CEJ.0000000000000868","url":null,"abstract":"<p><strong>Objective: </strong>The tumor, node and metastasis stage is widely applied to classify lung cancer and is the foundation of clinical decisions. However, increasing studies have pointed out that this staging system is not precise enough for the N status. In this study, we aim to build a convenient survival prediction model that incorporates the current items of lymph node status.</p><p><strong>Methods: </strong>We performed a retrospective cohort study and collected the data from resectable nonsmall cell lung cancer (NSCLC) (IA-IIIB) patients from the Surveillance, Epidemiology, and End Results database (2006-2015). The x-tile program was applied to calculate the optimal threshold of metastatic lymph node ratio (MLNR). Then, independent prognostic factors were determined by multivariable Cox regression analysis and enrolled to build a nomogram model. The calibration curve as well as the Concordance Index (C-index) were selected to evaluate the nomogram. Finally, patients were grouped based on their specified risk points and divided into three risk levels. The prognostic value of MLNR and examined lymph node numbers (ELNs) were presented in subgroups.</p><p><strong>Results totally,: </strong>40853 NSCLC patients after surgery were finally enrolled and analyzed. Age, metastatic lymph node ratio, histology type, adjuvant treatment and American Joint Committee on Cancer 8th T stage were deemed as independent prognostic parameters after multivariable Cox regression analysis. A nomogram was built using those variables, and its efficiency in predicting patients' survival was better than the conventional American Joint Committee on Cancer stage system after evaluation. Our new model has a significantly higher concordance Index (C-index) (training set, 0.683 v 0.641, respectively; P < 0.01; testing set, 0.676 v 0.638, respectively; P < 0.05). Similarly, the calibration curve shows the nomogram was in better accordance with the actual observations in both cohorts. Then, after risk stratification, we found that MLNR is more reliable than ELNs in predicting overall survival.</p><p><strong>Conclusion: </strong>We developed a nomogram model for NSCLC patients after surgery. This novel and useful tool outperforms the widely used tumor, node and metastasis staging system and could benefit clinicians in treatment options and cancer control.</p>","PeriodicalId":11830,"journal":{"name":"European Journal of Cancer Prevention","volume":"33 4","pages":"376-385"},"PeriodicalIF":2.4,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11155287/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141260964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}