Soyeoun Kim, Thi Xuan Mai Tran, Mi Kyung Kim, Min Sung Chung, Eun Hye Lee, Woojoo Lee, Boyoung Park
{"title":"Associations between breast cancer risk factors and mammographic breast density in a large cross-section of Korean women.","authors":"Soyeoun Kim, Thi Xuan Mai Tran, Mi Kyung Kim, Min Sung Chung, Eun Hye Lee, Woojoo Lee, Boyoung Park","doi":"10.1097/CEJ.0000000000000878","DOIUrl":"10.1097/CEJ.0000000000000878","url":null,"abstract":"<p><strong>Background: </strong>We investigated the association between established risk factors for breast cancer and mammographic breast density in Korean women.</p><p><strong>Methods: </strong>This large cross-sectional study included 8 460 928 women aged >40 years, who were screened for breast cancer between 2009 and 2018. Breast density was assessed using the Breast Imaging Reporting and Data System. This study used multiple logistic regression analyses of age, BMI, age at menarche, menopausal status, menopausal age, parity, breastfeeding status, oral contraceptive use, family history of breast cancer, physical activity, smoking, drinking and hormone replacement therapy use to investigate their associations with mammographic breast density. Analyses were performed using SAS software.</p><p><strong>Results: </strong>Of 8 460 928 women, 4 139 869 (48.9%) had nondense breasts and 4 321 059 (51.1%) had dense breasts. Factors associated with dense breasts were: earlier age at menarche [<15 vs. ≥15; adjusted odds ratio (aOR), 1.18; 95% confidence interval (CI), 1.17-1.18], premenopausal status (aOR, 2.01; 95% CI, 2.00-2.02), later age at menopause (≥52 vs. <52; aOR, 1.23; 95% CI, 1.22-1.23), nulliparity (aOR, 1.64; 95% CI, 1.63-1.65), never breastfed (aOR, 1.23; 95% CI, 1.23-1.24) and use of hormone replacement therapy (aOR, 1.29; 95% CI, 1.28-1.29). Women with a higher BMI and the use of oral contraceptives were more likely to have nondense breasts.</p><p><strong>Conclusion: </strong>Lower BMI, reproductive health and behavioral factors were associated with dense breasts in Korean women. Additional research should investigate the relationship between mammographic breast density, breast cancer risk factors and breast cancer risk.</p>","PeriodicalId":11830,"journal":{"name":"European Journal of Cancer Prevention","volume":" ","pages":"407-413"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139905313","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":"Incidence trend of neuroendocrine tumors and disparities by sex and race/ethnicity in adults from the United States, 2000-2020.","authors":"Yong Zhu","doi":"10.1097/CEJ.0000000000000877","DOIUrl":"10.1097/CEJ.0000000000000877","url":null,"abstract":"<p><strong>Objective: </strong>The incidence of neuroendocrine tumors (NET) has been increasing globally for several decades. The objective of the study was to examine the most recent trend in the incidence of NET as well as disparities by sex and race/ethnicity in adults in the USA.</p><p><strong>Methods: </strong>Patients with NET aged ≥20 years were identified from the SEER 22 Registries from 2000 to 2020. The age-adjusted incidence rate was calculated for overall NET and by primary site. The incidence trend was assessed by annual percent change. Disparities by sex and race/ethnicity were examined using the incidence rate ratio.</p><p><strong>Results: </strong>Age-adjusted incidence rate of overall NET in adults was 9.39 per 100 000 in 2000-2020. The incidence rate increased from 2000 but reached a plateau with no significant change since 2015. The lung and bronchus, small intestine, and rectum were the most common primary sites. Sex and racial/ethnic disparities in NET incidence varied by primary sites. For example, there was a female excess in NET of the lung and bronchus, stomach, and appendix; and there was a male excess in the small intestine, pancreas, colon, rectum and other/unknown NET. Compared to non-Hispanic white, non-Hispanic black had higher incidences of stomach, small intestine, liver, pancreas, colon, rectum, and other/unknown NET; they had lower incidences of lung and bronchus, and appendix NET than non-Hispanic white.</p><p><strong>Conclusion: </strong>Age-adjusted incidence rate of overall NET has reached a plateau since 2015. However, there were sex and racial/ethnic disparities in such incidence, which varied depending on the primary site of NET.</p>","PeriodicalId":11830,"journal":{"name":"European Journal of Cancer Prevention","volume":" ","pages":"475-484"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139905314","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}
Cornelia Richter, Lea Wildisen, Sabine Rohrmann, Sarah R Haile
{"title":"Better tools for better estimates: improving approaches to handling missing data in Swiss cancer registries.","authors":"Cornelia Richter, Lea Wildisen, Sabine Rohrmann, Sarah R Haile","doi":"10.1097/CEJ.0000000000000881","DOIUrl":"10.1097/CEJ.0000000000000881","url":null,"abstract":"<p><strong>Objective: </strong>Various approaches have been used in the literature to handle missing vital status data in cancer registries. We aimed to compare these approaches to determine which led to the least biased estimates in typical analytic tasks of cancer registries.</p><p><strong>Methods: </strong>A simulation study was performed using data from the Swiss National Agency for Cancer Registration for six tumor types. First, 5%, 10% and 15% missingness in the vital status were introduced artificially in the complete data. Second, missing vital status data were handled by applying no, single or multiple imputations. Five-year overall survival estimates, relative survival or standardized incidence ratio were computed. Estimates were compared with the true value.</p><p><strong>Results: </strong>Standardized incidence ratio estimates for colorectal cancer obtained with multiple imputation yielded least biased results (-0.06 to -0.04), but the widest confidence intervals. Single imputation was more biased (-0.32) than using no imputation at all (-0.21). A similar pattern was observed for overall survival and relative survival.</p><p><strong>Conclusion: </strong>This simulation study indicated that often used single imputation (sometimes referred to as simulating follow-up times) techniques to fill in missing vital status data are likely too biased to be useful in practice. Multiple imputation approaches yielded standardized incidence ratio, overall and relative survival estimates with the least bias, indicating reasonable performance that is likely to generalize to other settings.</p>","PeriodicalId":11830,"journal":{"name":"European Journal of Cancer Prevention","volume":" ","pages":"400-406"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140065076","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":"Correlation between PD-L1 expression status and efficacy of immunotherapy as second-line or later-line therapy in advanced non-small cell lung cancer patients.","authors":"Jingya Liu, Yingchun Man, Jianing Gao, Xinxin Wang, Lijie Zhang, Mingheng Li, Jiahan Yu","doi":"10.1097/CEJ.0000000000000880","DOIUrl":"10.1097/CEJ.0000000000000880","url":null,"abstract":"<p><strong>Objective: </strong>The objective of this study is to evaluate the correlation between tumor proportionality scores (TPS) and the effectiveness of immune checkpoint inhibitors (ICIs) as the second or subsequent line therapies for individuals who received diagnoses of advanced non-small cell lung cancer (NSCLC).</p><p><strong>Methods: </strong>The retrospective analysis was conducted on the medical records of a total of 143 patients who received diagnoses of stage IIIB/IV NSCLC and were admitted to our hospital from the beginning of 2019 to the end of September 2022. The follow-up period ended on 01 January 2023. The study used Kaplan-Meier survival curves to assess the progression-free survival (PFS) and overall survival (OS) of patients. Univariate and multivariate Cox proportional risk models were used to analyze the factors associated with the PFS and OS of advanced-stage NSCLC patients who received ICIs as the second or subsequent lines.</p><p><strong>Results: </strong>Patients diagnosed with NSCLC who had a TPS ≥1% and got treatment with ICIs exhibit notably elevated rates of partial response, objective response rate, disease control rate and extended PFS in comparison to NSCLC patients with a TPS of <1% ( P < 0.05). NSCLC patients with TPS within 1-49% [hazard ratio (HR) = 0.372; 95% confidence interval (CI), 0.140-0.993; P = 0.048] or ≥50% (HR = 0.276; 95% CI, 0.095-0.796; P = 0.017) were significantly associated with prolonged PFS, which were conducted by multivariate Cox regression analysis.</p><p><strong>Conclusion: </strong>Programmed death protein-1 expression status may be predictive markers of the effectiveness of ICIs as the second or subsequent lines of therapies in advanced NSCLC are influenced by TPS.</p>","PeriodicalId":11830,"journal":{"name":"European Journal of Cancer Prevention","volume":" ","pages":"448-460"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139930605","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":"Diagnostic and prognostic risk factors analysis for distant metastasis in melanoma: a population-based study.","authors":"Junwei Sun, Mingyu Wang, Zhisheng Kan","doi":"10.1097/CEJ.0000000000000871","DOIUrl":"10.1097/CEJ.0000000000000871","url":null,"abstract":"<p><strong>Background: </strong>We aimed to develop tools that could predict the occurrence of distant metastases in melanoma and its prognosis based on clinical and pathological characteristics.</p><p><strong>Materials and methods: </strong>We obtained data from the Surveillance, Epidemiology, and End Results (SEER) database of melanoma patients diagnosed between 2010 and 2019. Logistic analyses were performed to identify independent risk factors associated with distant metastasis. Additionally, multivariate Cox analyses were conducted to determine independent prognostic factors for patients with distant metastasis. Two nomograms were established and evaluated with the receiver operating characteristic (ROC) curves, calibration curves, and decision curve analysis (DCA). Furthermore, we performed a retrospective analysis of melanoma with distant metastasis from our institute between March 2018 and June 2022.</p><p><strong>Results: </strong>Of the total 19 396 melanoma patients, 352 (1.8%) had distant metastases at the time of diagnosis. The following clinical and pathological characteristics were identified as independent risk factors for distant metastasis in melanoma: N stage, tumor size, ulceration, mitosis, primary tumor site, and pathological subtype. Furthermore, tumor size, pathological subtype, and radiotherapy were identified as independent prognostic factors. The results of the training and validation cohorts' ROC curves, calibration, DCA, and Kaplan-Meier survival curves demonstrate the effectiveness of the two nomograms. The retrospective study results from our center supported the results from the SEER database.</p><p><strong>Conclusion: </strong>The clinical and pathological characteristics of melanoma can predict a patient's risk of metastasis and prognosis, and the two nomograms are expected to be effective tools to guide therapy decisions.</p>","PeriodicalId":11830,"journal":{"name":"European Journal of Cancer Prevention","volume":" ","pages":"461-474"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139512227","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":"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}