scholarly journals Geographic and Socioeconomic Disparity of Gastric Cancer Patients in Canada

2021 ◽  
Vol 28 (3) ◽  
pp. 2052-2064
Author(s):  
Leila Cattelan ◽  
Feras M. Ghazawi ◽  
Michelle Le ◽  
François Lagacé ◽  
Elham Rahme ◽  
...  

Gastric cancer is the 5th most common malignancy worldwide, representing ~5–10% of all new cancer cases. Although its incidence is declining, it is estimated that 1 in 98 Canadians will develop gastric cancer in their lifetime. The epidemiology and distribution of gastric cancer throughout Canada, however, remains poorly understood. A retrospective analysis of demographic data across Canada between 1992 and 2010 was performed using 2 population-based cancer registries. The incidence of gastric cancer was examined at the levels of provinces, cities, and postal codes. In addition, 43,955 patients were diagnosed with gastric cancer in Canada between 1992 and 2010; 66% were male and the average age of diagnosis was 68.4 years. The age-adjusted incidence rate was 5.07 cases per 100,000 individuals per year. The incidence decreased over the study period by 30%. High incidence rates were identified in rural areas of Newfoundland and Labrador, New Brunswick, and Quebec. Our study found a significant association between gastric cancer incidence rates and lower socioeconomic status, as well as Hispanic ethnicity. This is the first study to provide a comprehensive analysis of the incidence of gastric carcinoma in Canada, identifying high-risk populations that may benefit from increased primary and secondary prevention.

Gut ◽  
2020 ◽  
Vol 69 (9) ◽  
pp. 1564-1571 ◽  
Author(s):  
Melina Arnold ◽  
Jacques Ferlay ◽  
Mark I van Berge Henegouwen ◽  
Isabelle Soerjomataram

ObjectivesTo provide updated estimates of the global burden of oesophageal and gastric cancer by subsite and type.MethodsUsing data from population-based cancer registries, proportions of oesophageal adenocarcinoma (OAC) and squamous cell carcinoma (OSCC) out of all oesophageal as well as cardia gastric cancer (CGC) and non-CGC (NCGC) out of all gastric cancer cases were computed by country, sex and age group. Proportions were subsequently applied to the estimated numbers of oesophageal and gastric cancer cases from GLOBOCAN 2018. Age-standardised incidence rates (ASR) were calculated.ResultsIn 2018, there were an estimated 572 000 new cases of oesophageal cancer worldwide, 85 000 OACs (ASR 0.9 per 100 000, both sexes combined) and 482 000 OSCCs (ASR 5.3). Out of 1.03 million gastric cancers, there were an estimated 181 000 cases of CGC (ASR 2.0) and 853 000 cases of NCGC (ASR 9.2). While the highest incidence rates of OSCC, CGC and NCGC were observed in Eastern Asia (ASRs 11.1, 4.4 and 17.9, respectively), rates of OAC were highest in Northern Europe (ASR 3.5). While globally OSCC and NCGC remain the most common types of oesophageal and gastric cancer, respectively, rates of OAC exceed those of OSCC in an increasing number of high-income countries.ConclusionsThese updated estimates of the global burden of oesophageal and gastric cancer by subtype and site suggest an ongoing transition in epidemiological patterns. This work will serve as a cornerstone for policy-making and will aid in developing appropriate cancer control strategies.


Author(s):  
Stephanie C Melkonian ◽  
Hannah K Weir ◽  
Melissa A Jim ◽  
Bailey Preikschat ◽  
Donald Haverkamp ◽  
...  

Abstract Cancer incidence varies among American Indian and Alaska Native (AI/AN) populations, as well as between AI/AN and White populations. This study examined trends for cancers with elevated incidence among AI/AN compared with non-Hispanic White populations and estimated potentially avoidable incident cases among AI/AN populations. Incident cases diagnosed during 2012–2016 were identified from population-based cancer registries and linked with the Indian Health Service patient registration databases to improve racial classification of AI/AN populations. Age-adjusted rates (per 100,000) and trends were calculated for cancers with elevated incidence among AI/AN compared with non-Hispanic White populations (rate ratio >1.0), by region. Trends were estimated using joinpoint regression analyses. Expected cancers were estimated by applying age-specific cancer incidence rates among non-Hispanic White populations to population estimates for AI/AN populations. Excess cancer cases among AI/AN populations were defined as observed minus expected cases. Liver, stomach, kidney, lung, colorectal and female breast cancers had higher incidence rate among AI/AN populations across most regions. Between 2012 and 2016, nearly 5,200 excess cancers were diagnosed among AI/AN populations, with the largest number of excess cancers (1,925) occurring in the Southern Plains region. Culturally informed efforts may reduce cancer disparities associated with these and other cancers among AI/AN populations.


2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
R. A. Snyder ◽  
E. T. Castaldo ◽  
C. E. Bailey ◽  
S. E. Phillips ◽  
A. B. Chakravarthy ◽  
...  

Purpose. Although randomized trials suggest a survival benefit of adjuvant chemotherapy and radiation therapy (XRT) for gastric adenocarcinoma, its use in patients who undergo an extended lymphadenectomy is less clear. The purpose of this study was to determine if a survival benefit exists in gastric cancer patients who receive adjuvant XRT following resection with extended lymphadenectomy.Methods. The SEER registry was queried for records of patients with resected gastric adenocarcinoma from 1988 to 2007. Multivariable Cox regression models were used to assess independent prognostic factors affecting overall survival (OS) and disease-specific survival (DSS).Results. Of 15,060 patients identified, 3,208 (21%) received adjuvant XRT. Adjuvant XRT was independently associated with improved OS (HR 0.67, CI 0.64–0.71) and DSS (HR 0.69, CI 0.65–0.73) in stages IB through IV (M0). This OS and DSS benefit persisted regardless of the extent of lymphadenectomy. Furthermore, lymphadenectomy with >25 LN resected was associated with improved OS and DSS compared with <15 LN or 15–25 LN.Conclusion. This population-based study shows a survival benefit of adjuvant XRT following gastrectomy that persists in patients who have an extended lymphadenectomy. Furthermore, removal of >25 LNs results in improved OS and DSS compared with patients who have fewer LNs resected.


Neurosurgery ◽  
1984 ◽  
Vol 15 (3) ◽  
pp. 318-324 ◽  
Author(s):  
Evan Lloyd Nelson ◽  
Joseph L. Melton ◽  
John F. Annegers ◽  
Edward R. Laws ◽  
Kenneth P. Offord

Abstract Between 1935 and 1974, 3598 episodes of head trauma among Olmsted County, Minnesota, residents resulted in 1097 skull fractures. Of these, 53% were simple, 16% were depressed, 12% were compound, and 19% were basilar. The age- and sex-adjusted incidence of skull fractures was 44.3 per 100,000 person-years overall, was somewhat greater in the urban than in the rural areas of Olmsted County, and was relatively stable for the final 30 years of the study. Age-specific incidence rates were highest for the very young, and simple linear fractures were the predominant type of skull fracture in this age group and among the elderly. The male:female ratio of incidence rates varied from 2.1:1 to 4.5:1 depending on fracture type. Motor vehicle accidents accounted for 38% of the skull fractures and were a particularly important cause among young males. Falls accounted for 37% of the skull fractures and were the major cause of fractures in the elderly and pediatric age groups. The results of this population-based study may be helpful in formulating recommendations for the evaluation and management of head-injured patients.


2020 ◽  
Vol 30 (Supplement_5) ◽  
Author(s):  
R Bannour ◽  
I Zemni ◽  
C Ben Nasrallah ◽  
N Aroua ◽  
M Kacem ◽  
...  

Abstract Introduction Cancer is an eminent public health issue in the developing countries. The risk factors incriminated in cancer higher incidence are multiple such as the growing population rates, increasing tobacco consumption, the changes of diet and lifestyle. In Tunisia, there are three population-based cancer registries at the present time providing data on cancer incidence and survival. According to the data published by WHO International Agency for Research on Cancer (IACR) (GLOBOCAN 2018), prostate cancer in Tunisia ranks fifth among cancers with almost 819 new cases per year. The aim of this study was to we report trends in the cancer incidence during the span of time between 2002 and 2013 from the population-based cancer registry of the centre of Tunisia, and to predict the future number of cancer cases by 2030. Methods The cancer incidence data were collected from the Center cancer registries from 2003 to 2012.The data were stratified by cancer site, sex and age. We used SPSS software in order to calculate the crude incidence rates and age-standardized incidence rates. SPSS software was used in order to estimate the future number of cancer cases by 2030. Results A total of 725 cases of prostate cancer were enregistrated. The mean age of patients was 71.6 ±10.61years. The crude incidence rates were estimated 23.537. The standardized incidence rate was 33.92. A significant positive trend was noted with a b = 0133 and p &lt; 10-3. 1033 new cases are predicted by 2030 Conclusions The data of the cancer register of the center shows that the incidence of cancer is rising, and it is consistent with the National cancer intelligence, but some cancer incidence showed slightly higher, such as thyroid cancer and prostate cancer. In order to face this alarming situation, many preventive steps should be done such as strengthening early screening and diagnosis of cancer, improving clinical research in order to better control the risks factors. Key messages Prediction of the future number of cancer cases is of great interest to society. Prostate cancer in Tunisia ranks fifth among cancers.


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