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Epidemiology of cancer

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https://www.readbyqxmd.com/read/28822996/examining-bias-in-studies-of-statin-treatment-and-survival-in-patients-with-cancer
#1
Louise Emilsson, Xabier García-Albéniz, Roger W Logan, Ellen C Caniglia, Mette Kalager, Miguel A Hernán
Importance: Patients with cancer who use statins appear to have a substantially better survival than nonusers in observational studies. However, this inverse association between statin use and mortality may be due to selection bias and immortal-time bias. Objective: To emulate a randomized trial of statin therapy initiation that is free of selection bias and immortal-time bias. Design, Setting, and Participants: We used observational data on 17 372 patients with cancer from the Surveillance, Epidemiology, and End Results (SEER)-Medicare database (2007-2009) with complete follow-up until 2011...
August 20, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28822326/second-malignant-neoplasms-after-childhood-non-central-nervous-system-embryonal-tumours-in-north-america-a%C3%A2-population-based-study
#2
Xuchen Zong, Jason D Pole, Paul E Grundy, Salaheddin M Mahmud, Louise Parker, Rayjean J Hung
BACKGROUND: Few studies in North America have quantified the risks of second malignant neoplasms (SMNs) among survivors of childhood non-central nervous system (non-CNS) embryonal tumours due to their rarity. We aimed to investigate these risks by combining population-based data from the United States of America and Canada. METHODS: We evaluated patients with childhood non-CNS embryonal tumours reported to the Surveillance Epidemiology and End Results program and eight Canadian cancer registries from 1969 to 2010...
August 16, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28821890/detection-rate-of-high-grade-cervical-neoplasia-and-cost-effectiveness-of-high-risk-human-papillomavirus-genotyping-with-reflex-liquid-based-cytology-in-cervical-cancer-screening
#3
Sun Kuie Tay, Lynette Eo Lin, Ronald Ch Goh
INTRODUCTION: This study aimed to determine the prevalence of cervical intraepithelial neoplasia grade 3 or worse (≥CIN3) and cost-effectiveness of human papillomavirus (HPV) genotyping with reflex liquid-based cytology (LBC) for cervical cancer screening in Singapore. MATERIALS AND METHODS: Women who were ≥25 years old and undertook co-testing with LBC and HPV-genotyping (Cobas-4800, Roche, USA) for HPV-16, HPV-18 and 12 high-risk HPV types in a single institution were studied retrospectively...
July 2017: Annals of the Academy of Medicine, Singapore
https://www.readbyqxmd.com/read/28821245/ambient-ultraviolet-radiation-exposure-and-hepatocellular-carcinoma-incidence-in-the-united-states
#4
Trang VoPham, Kimberly A Bertrand, Jian-Min Yuan, Rulla M Tamimi, Jaime E Hart, Francine Laden
BACKGROUND: Hepatocellular carcinoma (HCC), the most commonly occurring type of primary liver cancer, has been increasing in incidence worldwide. Vitamin D, acquired from sunlight exposure, diet, and dietary supplements, has been hypothesized to impact hepatocarcinogenesis. However, previous epidemiologic studies examining the associations between dietary and serum vitamin D reported mixed results. The purpose of this study was to examine the association between ambient ultraviolet (UV) radiation exposure and HCC risk in the U...
August 18, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/28820513/predictors-of-unplanned-hospitalizations-in-patients-with-nonmetastatic-lung-cancer-during-chemotherapy
#5
Kristen L Fessele, Matthew J Hayat, Robert L Atkins
PURPOSE/OBJECTIVES: To determine predictors of unplanned hospitalizations in patients with lung cancer to receive chemotherapy in the outpatient setting and examine the potential financial burden of these events.
. DESIGN: Retrospective, longitudinal cohort study.
. SETTING: The National Cancer Institute's Surveillance, Epidemiology, and End Results (SEER)-Medicare linked database.
. SAMPLE: Of 104,388 incident cases of lung cancer diagnosed from 2005-2009, 2,457 cases of patients with lung cancer who received outpatient chemotherapy were identified...
September 1, 2017: Oncology Nursing Forum
https://www.readbyqxmd.com/read/28819775/sublobar-resection-versus-lobectomy-in-patients-aged-%C3%A2-35%C3%A2-years-with-stage-ia-non-small-cell-lung-cancer-a-seer-database-analysis
#6
Chang Gu, Rui Wang, Xufeng Pan, Qingyuan Huang, Yangyang Zhang, Jun Yang, Jianxin Shi
PURPOSE: Sublobar resection has been increasingly adopted in elderly patients with stage IA non-small cell lung cancer (NSCLC), but the equivalency of sublobar resection versus lobectomy among young patients with stage IA NSCLC is unknown. METHODS: Using the Surveillance, Epidemiology, and End Results (SEER) registry, we identified patients aged ≤35 years who were diagnosed between 2004 and 2013 with pathological stage IA NSCLC and treated with sublobar resection or lobectomy...
August 17, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28819435/pattern-of-distant-extrahepatic-metastases-in-primary-liver-cancer-a-seer-based-study
#7
Wenrui Wu, Xingkang He, Dewi Andayani, Liya Yang, Jianzhong Ye, Yating Li, Yanfei Chen, Lanjuan Li
Background and Aims: Primary liver cancer remains still the common cause of cancer-related deaths globally and the prognosis for patients with extrahepatic metastasis is poor. The aim of our study was to assess extrahepatic metastatic pattern of different histological subtypes and evaluate prognostic effects of extrahepatic metastasis in patients with advanced disease. Methods: Based on the Surveillance, Epidemiology and End Results (SEER) database, eligible patients diagnosed with primary liver cancer was identified between 2010 to 2012...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28819392/long-term-trends-in-primary-sites-of-gastric-adenocarcinoma-in-japan-and-the-united-states
#8
Michitaka Honda, Sandra L Wong, Mark A Healy, Toshifusa Nakajima, Masayuki Watanabe, Shingo Fukuma, Shunichi Fukuhara, John Z Ayanian
Background: The incidence and characteristics of gastric cancer have been shown to vary widely across Western and Eastern countries. Our study had two aims: to evaluate long-term trends in gastric adenocarcinoma in Japan over a period of 70 years, and to anticipate the future of gastric cancer in Japan, through comparison with data from the United States. Methods: Japanese patient data for 19,306 incident cases of gastric adenocarcinoma from 1946 - 2014 were collected from the Gastric Cancer Database at the Cancer Institute Hospital, Tokyo, Japan (CIH-GCDB)...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28818202/risk-of-arterial-thromboembolism-in-patients%C3%A2-with%C3%A2-cancer
#9
Babak B Navi, Anne S Reiner, Hooman Kamel, Costantino Iadecola, Peter M Okin, Mitchell S V Elkind, Katherine S Panageas, Lisa M DeAngelis
BACKGROUND: The risk of arterial thromboembolism in patients with cancer is incompletely understood. OBJECTIVES: The authors aimed to better define this epidemiological relationship, including the effects of cancer stage. METHODS: Using the Surveillance Epidemiology and End Results-Medicare linked database, the authors identified patients with a new primary diagnosis of breast, lung, prostate, colorectal, bladder, pancreatic, or gastric cancer or non-Hodgkin lymphoma from 2002 to 2011...
August 22, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28817835/history-of-thyroid-disease-and-survival-of-ovarian-cancer-patients-results-from-the-ovarian-cancer-association-consortium-a-brief-report
#10
Albina N Minlikeeva, Jo L Freudenheim, Rikki A Cannioto, Kevin H Eng, J Brian Szender, Paul Mayor, John L Etter, Daniel W Cramer, Brenda Diergaarde, Jennifer A Doherty, Thilo Dörk, Robert Edwards, Anna deFazio, Grace Friel, Marc T Goodman, Peter Hillemanns, Estrid Høgdall, Allan Jensen, Susan J Jordan, Beth Y Karlan, Susanne K Kjær, Rüdiger Klapdor, Keitaro Matsuo, Mika Mizuno, Christina M Nagle, Kunle Odunsi, Lisa Paddock, Mary Anne Rossing, Joellen M Schildkraut, Barbara Schmalfeldt, Brahm H Segal, Kristen Starbuck, Kathryn L Terry, Penelope M Webb, Emese Zsiros, Roberta B Ness, Francesmary Modugno, Elisa V Bandera, Jenny Chang-Claude, Kirsten B Moysich
BACKGROUND: Findings from in vitro studies suggest that increased exposure to thyroid hormones can influence progression of ovarian tumours. However, epidemiologic evidence on this topic is limited. METHODS: We pooled data from 11 studies from the Ovarian Cancer Association Consortium. Using multivariate Cox proportional hazards models, we estimated associations between hyper- and hypothyroidism and medications prescribed for these conditions with 5-year all-cause survival among women diagnosed with invasive ovarian cancer...
August 17, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28816977/helicobacter-pylori-infection-atrophic-gastritis-and-pancreatic-cancer-risk-a-meta-analysis-of-prospective-epidemiologic-studies
#11
Hong Liu, Yue-Tong Chen, Rui Wang, Xin-Zu Chen
BACKGROUND: To investigate the associations of Helicobacter pylori (Hp) infection and atrophic gastritis (AG) with pancreatic cancer risk. METHODS: A literature search in PubMed was performed up to July 2017. Only prospective cohort and nested case-control studies enrolling cancer-free participants were eligible. Incident pancreatic cancer cases were ascertained during the follow-up. The risks of pancreatic cancer were compared between persons infected and noninfected with Hp, or between those with and without AG status at baseline...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28816973/soy-food-intake-and-risk-of-gastric-cancer-a-dose-response-meta-analysis-of-prospective-studies
#12
Ke-Gui Weng, Ya-Ling Yuan
Epidemiological studies were inconsistent on the association between soy food intake and risk of gastric cancer (GC). This study aimed to determine the role of soy food intake in the development of GC.A systematic search was conducted in PubMed and Web of Science to identify all relevant studies. Study-specific relative risks (RRs) and 95% confidence intervals (CIs) were pooled using a random-effects model, and the dose-response relationship between soy food intake and GC risk was also assessed.Thirteen prospective studies were identified with a total of 517,106 participants and 5800 cases...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28816370/does-depression-decrease-the-moderating-effect-of-self-efficacy-in-the-relationship-between-illness-perception-and-fear-of-progression-in-breast-cancer
#13
Eun-Jung Shim, Jong Won Lee, Yul Ha Min
OBJECTIVE: Fear of progression (FOP) is a prevalent concern among breast cancer patients that affect their adjustment to disease. This study examined whether self-efficacy moderates the effect of illness perception (IP) on FOP and whether the moderating effect of self-efficacy depends on the level of depressive symptoms. METHODS: A cross-sectional survey including brief illness perception questionnaire (BIPQ), FOP short form, general self-efficacy scale, and the center for epidemiologic studies depression scale were administered to 245 patients with breast cancer in Korea...
August 17, 2017: Psycho-oncology
https://www.readbyqxmd.com/read/28816197/cytological-changes-in-normal-oral-mucosa-of-individuals-with-tobacco-habits-a-cytomorphometric-study
#14
Pavan Palakurthy, Pavan G Kulkarni, Rateesh K Nandan, T Madhusudan Rao, D Shyam P Reddy, Keerthi Muddana
INTRODUCTION: Oral cancer is one of the six most common cancers in the world, and globally more than 50% of head and neck cancers occur in Asia, remarkably in India. Overall, 200,000 cases of head and neck cancers occur each year in India, among which 80,000 are oral cancers. Epidemiological and clinical studies suggest a causative role of tobacco use in the evolution of oral potentially malignant and malignant disorders. AIMS AND OBJECTIVES: The aim of the study is to evaluate independently and compare the cytological effects of smoking, tobacco chewing, and smoking in conjunction with tobacco chewing on oral mucosa by cytomorphometric analysis...
August 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28816028/epidemiology-of-head-and-neck-cancer-in-thailand
#15
REVIEW
Napadon Tangjaturonrasme, Patravoot Vatanasapt, Andrey Bychkov
Cancer is the most common cause of death in Thailand, with the mortality almost doubled during 1998-2011 (from 48.4 to 95.2 per 100 000). The estimated number of new cancer cases in 2011 was 112 392. Our review provides baseline data on the current epidemiological situation with head and neck (HN) cancer in Thailand based on reports of the National Cancer Registry and findings from local and international publications. Collectively, HN cancer approaches age-standardized rate (ASR) incidence of 15.7 and 10...
August 16, 2017: Asia-Pacific Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28815913/metastatic-triple-negative-breast-cancer-optimizing-treatment-options-new-and-emerging-targeted-therapies
#16
REVIEW
Parham Khosravi-Shahi, Luis Cabezón-Gutiérrez, Sara Custodio-Cabello
Triple negative breast cancer (TNBC) is a heterogeneous disease, not only on the molecular level, but also on the pathologic and clinical levels. It also has a distinct epidemiology. TNBCs are frequently of high histologic grade, typically more aggressive and difficult to treat than hormone receptor-positive tumors, and they are associated with a higher risk of early relapse with visceral metastasis after surgery, chemotherapy and/or radiotherapy. The lack of estrogen receptor, progesterone receptor and human epidermal growth factor receptor 2 expression precludes the use of targeted therapies in advanced stages, and the only approved systemic treatment option is chemotherapy with or without bevacizumab...
August 16, 2017: Asia-Pacific Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28815822/hepatitis-c-virus-related-complications-are-increasing-in-women-veterans-a-national-cohort-study
#17
J R Kramer, H B El-Serag, T J Taylor, D L White, S M Asch, S M Frayne, Y Cao, D L Smith, F Kanwal
There are gender-specific variations in the epidemiology and clinical course of hepatitis C virus (HCV) infection. However, few long-term longitudinal studies have examined trends in the incidence and prevalence of serious liver complications among women compared with men with HCV infection. We used the Veterans Administration Corporate Data Warehouse to identify all veterans with positive HCV viraemia from January 2000 to December 2013. We calculated gender-specific annual incidence and prevalence rates of cirrhosis, decompensated cirrhosis and hepatocellular cancer (HCC) adjusting for age, diabetes, HIV and alcohol use...
August 16, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28815680/study-of-coverage-of-confidence-intervals-for-the-standardized-mortality-ratio-in-studies-with-missing-death-certificates
#18
Jana Timkova, Lukas Kotik, Ladislav Tomasek
This paper assesses the coverage probability of commonly used confidence intervals for the standardized mortality ratio (SMR) when death certificates are missing. It also proposes alternative confidence interval approaches with coverage probabilities close to .95. In epidemiology, the SMR is an important measure of risk of disease mortality (or incidence) to compare a specific group to a reference population. The appropriate confidence interval for the SMR is crucial, especially when the SMR is close to 1.0 and the statistical significance of the risk needs to be determined...
August 16, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/28815336/treatment-selection-in-oropharyngeal-cancer-a-surveillance-epidemiology-and-end-results-seer-patterns-of-care-analysis
#19
Nitin A Pagedar, Catherine Chioreso, Jennifer A Schlichting, Charles F Lynch, Mary E Charlton
PURPOSE: Treatment for oropharyngeal cancer (OPC) has changed over the past two decades under multiple influences. We provide a population-based description of the application of radiotherapy, surgery, and chemotherapy to OPC in 1997, 2004, and 2009. METHODS: The National Cancer Institute's Patterns of Care study for OPC included multiple variables not available in the public-use dataset. We identified factors correlating with selection of primary surgery versus radiotherapy with or without chemotherapy (RTC) and analyzed predictors of all-cause mortality...
August 16, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28815170/the-geography-of-primary-hepatic-neoplasms-treatments-in-canada-changes-in-latitudes-and-changes-in-attitudes
#20
Matthew Cwinn, Gordon Walsh, Sheikh Hasibur Rahman, Michele Molinari
BACKGROUND: Studies on treatment modalities for primary hepatic neoplasms (PHN) in Canada are lacking. Our primary aim was to analyze the age-standardized incidence of hepatic resection, ablation, transplantation, and embolization for PHN between 2002 and 2013. Secondary aim was to evaluate temporal trends for these treatment modalities. STUDY DESIGN: National Canadian Cancer Registries were accessed for relevant epidemiological data. Age-standardized incidence of treatment ratios (SIRs) was calculated and comparisons were performed for Atlantic Canada, Ontario, the Prairies, and British Columbia...
2017: Canadian Journal of Gastroenterology & Hepatology
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