scholarly journals Cancer incidence in the Western Amazon: population-based estimates in Rio Branco, Acre State, Brazil, 2007-2009

2012 ◽  
Vol 28 (11) ◽  
pp. 2125-2132 ◽  
Author(s):  
Juliano de Pádua Nakashima ◽  
Rosalina Jorge Koifman ◽  
Sergio Koifman

Cancer incidence rates vary widely in Brazil. The literature on the subject for the western Amazon region is scarce. This study aimed to determine cancer incidence in the population of Rio Branco, Acre State. A total of 718 new cases were recorded during the study period. Among men, the five leading cancer sites were prostate (ASR 75.1), stomach (ASR 23.0), lung (ASR 19.1), colon and rectum (ASR 9.5), and leukemia (ASR 6.9). Among women, they were breast (ASR 41.5), cervix (ASR 41.3), lung (ASR 11.8), colon and rectum (ASR 11.0), and stomach (ASR 7.7). These indicators reveal that Rio Branco has a cancer incidence pattern that overlaps with epidemiological cancer patterns observed in developed and developing regions. The results of the study point to the importance of implementing a population-based cancer registry - currently nonexistent in Rio Branco - as a factor to promote analysis of incident cases of the disease and monitoring of its evolution.

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.


2019 ◽  
Vol 37 (15_suppl) ◽  
pp. 4538-4538
Author(s):  
Tamer Dafashy ◽  
Daniel Phillips ◽  
Mohamed Danny Ray-Zack ◽  
Preston Kerr ◽  
Yong Shan ◽  
...  

4538 Background: Exposure to aromatic amines is a risk factor for bladder cancer. Incidence rates according to proximity to oil refineries are largely unknown. We sought to determine proximity of oil refineries and bladder cancer incidence in the State of Texas which is home to the largest number of oil refineries in the United States. Methods: We used the Texas Cancer Registry database to identify patients diagnosed with bladder cancer from January 1, 2001 to December 31, 2014. The U.S. census data from 2010 was used to ascertain overall population size, age and sex distributions. Heat maps of the 28 active oil refineries in Texas were developed. Incidence of bladder cancer were compared according to proximity ( < 10 vs. ≥ 10 miles) to an oil refinery. Risk ratios were adjusted using a Poisson regression model. Results: A total of 45,517 incident bladder cancer cases were identified of which 5,501 cases were within 10 miles of an oil refinery. In adjusted analyses, bladder cancer risk was significantly greater among males vs. females (Relative Risk (RR) 3.41, 95% Confidence Interval (CI), 3.33-3.50), and greater among people living within 10 miles from an oil refinery than those living outside a 10-mile radius from an oil refinery (RR 1.19, 95% CI, 1.08-1.31). Conclusions: People living within 10 miles from oil refineries were at greater risk for bladder cancer. Further research into exposure to oil refineries and bladder cancer incidence is warranted.


2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Lisa W. Chu ◽  
Jamie Ritchey ◽  
Susan S. Devesa ◽  
Sabah M. Quraishi ◽  
Hongmei Zhang ◽  
...  

African American men have among the highest prostate cancer incidence rates in the world yet rates among their African counterparts are unclear. In this paper, we compared reported rates among black men of Sub-Saharan African descent using data from the International Agency for Research on Cancer (IARC) and the National Cancer Institute Surveillance, Epidemiology, and End Results Program for 1973–2007. Although population-based data in Africa are quite limited, the available data from IARC showed that rates among blacks were highest in the East (10.7–38.1 per 100,000 man-years, age-adjusted world standard) and lowest in the West (4.7–19.8). These rates were considerably lower than those of 80.0–195.3 observed among African Americans. Rates in Africa increased over time (1987–2002) and have been comparable to those for distant stage in African Americans. These patterns are likely due to differences between African and African American men in medical care access, screening, registry quality, genetic diversity, and Westernization. Incidence rates in Africa will likely continue to rise with improving economies and increasing Westernization, warranting the need for more high-quality population-based registration to monitor cancer incidence in Africa.


2021 ◽  
Vol 28 (3) ◽  
pp. 1706-1717
Author(s):  
Radu-Mihai Ignat ◽  
Daniela Coza ◽  
Patricia Ignat ◽  
Radu-Ion Badea ◽  
Ofelia Șuteu

(1) Background: Romania has one of the highest cervical cancer incidence rates in Europe. In Cluj County, the first screening program was initiated in 1998. We aimed to investigate the time trends of cervical cancer incidence in women from Cluj County and to evaluate the data quality at the Cancer Registry. (2) Methods: We calculated time trends of standardized incidence rates in the period 1998–2014 and the Annual Percent Change (APC%). To assess data quality, we used the indicators: mortality/incidence ratio (M/I), percentage of cases declared only at death (DOD%), and percentage of cases with pathological confirmation (PC%). (3) Results: The standardized incidence rate increased steadily, from 23.74 cases/100,000 in 1998, to 32/100,000 in 2014, with an APC% of 2.49% (p < 0.05). The rise in incidence affected both squamous cell carcinoma (APC% 2.49%) (p < 0.05) and cervical adenocarcinoma (APC% 10.54%) (p < 0.05). The M/I ratio was 0.29, DOD% 2.66%, and MC% 94.8%. The last two parameters are within the silver standard concerning data quality. (4) Conclusions. Our study revealed an ascending trend of cervical cancer incidence, more consistent for adenocarcinoma, in the context of a newly introduced screening program and partially due to the improvement of the quality of case reporting at the Cancer Registry from Cluj.


2019 ◽  
Vol 18 (5) ◽  
pp. 5-11
Author(s):  
G. V. Petrova ◽  
O. P. Gretsova ◽  
V. V. Starinsky

The purpose of the study was to compare data on the cancer incidence rates for 2016 between the official reports on cancer statistics and federal cancer registry, collected in December 2018.Material and Methods. The study estimated the total data on 18 parameters from 35 regions of Russia, covering 66.3 million people (2016). The database of the Russian cancer registry and the database containing reports on the state cancer statistics were used. The cancer statistics/cancer registry ratio was assessed.Results. No differences in cancer incidence between the official reports on cancer statistics and cancer registry data were found. In the official reports on cancer statistics, the mortality rate, the proportion of posthumously recorded patients per 100 newly diagnosed, the proportion of deaths from diseases not related to cancer per 100 deceased patients, the cancer prevalence and the prevalence rate of unspecified malignant tumors were slightly reduced (to 10 %, 9 %, 5 %, and 4 %, respectively), and the rate of cancer detection, the proportion of histologically verified diagnoses and the proportion of cancers detected in stage III were increased (to 19 %, 10 % and 14 %, respectively) compared to those in cancer registry data.Conclusion. Improvement in the quality and completeness of information about cancer patients is associated rather with increasing the annual report length than with the need to improve the cancer registration system itself.


Author(s):  
Amr S Soliman ◽  
Saad Alshahrani MD PhD ◽  
Robert M Chamberlain PhD ◽  
Ahmed Hablas MD ◽  
Steven Remmenga MD ◽  
...  

Background: Uterine cancer is one of the common women’s cancers worldwide. There are significant variations in uterine cancer incidence rates globally and the incidence in Egypt is one of the lowest. Several studies have shown that hysterectomy might be a factor in underestimating the observed incidence of uterine cancer. However, no studies have been conducted in Egypt to examine this observation. Methods: Pathologic reports of all 1040 hysterectomy specimens examined in 2013 and 2014 in the Gharbiah province, Egypt were abstracted. Prevalence of hysterectomy was estimated and used for adjusting the incidence rate of uterine cancer in the Gharbiah population-based registry by excluding the hysterectomized women from the population at risk. Pre- and post- adjustment rates were compared and 95% confidence intervals (CIs) were calculated. Results: The prevalence of hysterectomy was estimated as 13.1 per 10,000 women, 95% CI (12.65-13.66). The prevalence of hysterectomy did not have a significant impact on uterine cancer incidence [pre-adjustment (2.78, 95% CI 2.58-3.00) and post-adjustment (2.79, 95% CI 2.58-3.00)]. Observing a significant effect of hysterectomy on underestimating the incidence of uterine cancer in this population required multiplying the observed prevalence by at least 110 times. Discussion: This study confirmed the previously documented low incidence of uterine cancer in this population of Egypt. The lack of evidence about the possible role of hysterectomy in lowering uterine cancer incidence justifies the need for additional research to identify the protective factors for uterine cancer in this population.


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