scholarly journals 1375Age-standardization to world population and under-estimation of oral cancer burden

2021 ◽  
Vol 50 (Supplement_1) ◽  
Author(s):  
Kishore Chaudhry ◽  
Prashanti Bollu

Abstract Background Age-standardization is common for adjustment of unequal population in different ages as it can influence cancer incidence. However, for planning healthcare services (including screening), one needs absolute magnitude since everyone needs intervention. This study assessed the effect of age-standardization on understanding the global differentials in magnitude of oral cancer. Methods Data on cancer incidence rates of oral cancers for 2008-2012, was obtained from the website of international agency for research on cancer for all 334 population-based cancer registries. Scatter plots were prepared between age-standardized and crude incidence rates to assess the ratio between them according to proportion of old people for all countries. Areas with high occurrence of oral cancer were identified. Results The ratio between age-standardized and crude incidence rate was >1 in countries with high proportion of older population (high-development-index countries), indicating an artificial widening of gap between incidence rates between countries due to age-standardization. Six areas had higher crude incidence rate among men than India. Based on the published estimates, the per-unit-population burden in Europe was 6.3% higher than India, while in USA it was merely 12.5% lower than India. Conclusions The perception of low burden of oral cancer in high-economy countries is artificial, brought about by common practice of age-standardization. Key messages Organization of oral cancer screening activities by countries with resources and expertise will provide much needed knowledge on its natural history and efficacy of control strategies.

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 < 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.


2020 ◽  
pp. 030089162093194
Author(s):  
Francesco Cuccaro ◽  
Maria Giovanna Burgio Lo Monaco ◽  
Ivan Rashid ◽  
Lucia Bisceglia ◽  
Enrico Caputo ◽  
...  

Introduction: This study presents the incidence of gastrointestinal stromal tumors (GISTs) in an Italian region of over 4 million inhabitants monitored for 10 years and is the largest incidence study of this type of cancer conducted so far in Italy. Methods: In order to ensure the registration of all GISTs, including those with nonmalignant behavior, a cancer list was integrated with the cases found through an ad hoc data mining process that covered all the pathologic reports of Puglia. Case distributions by sex, age groups, site, and prognostic groups according to Miettinem and Lasota classification and crude and age-standardized incidence rates were produced. Results: In the 10-year period 2006 to 2015, 708 cases of GIST were recorded in Puglia. The average crude incidence rate was 1.7 per 100,000 person-years and the age-standardized incidence rate, using 2013 European standard population, was 1.8 per 100,000 person-years (95% confidence interval [CI], 1.6–1.9). Incidence was higher in men than in women: crude incidence rate was 2.0 per 100,000 person-years and age-standardized incidence rate 2.2 per 100,000 person-years (95% CI, 2.0–2.4) in men and 1.5 per 100,000 person-years and 1.4 per 100,000 person-years (95% CI, 1.2–1.6) in women. Discussion: Our incidence rates are comparable with those of other international studies and they are located in the medium to high end of the range. The comparisons are affected by a different capacity of the cancer registries to intercept and record GISTs with nonmalignant behavior. Distribution of cases for sex, age groups, sites, and prognostic risk groups are consistent with previous results.


2018 ◽  
Vol 13 (2) ◽  
Author(s):  
Salahuddin M. Jaber ◽  
Jwan H. Ibbini ◽  
Nawal S. Hijjawi ◽  
Juhina J. Thnaibat ◽  
Omar F. Nimri

Cancer in Jordan is a major public health problem and the second leading cause of death after heart disease. This study aimed at studying the spatial and temporal characteristics of cancer in Jordan and its 12 governorates for the period 2004-2013 to establish a baseline for future research and identification of cancer risk factors paving the way for developing a cancer control plan in the country. Numerical and graphical summaries, time-series additive seasonal decomposition, the method of least squares, and spacetime scan statistics were applied in a geographic information systems environment. Although the results indicate that the cancer incidence in Jordan is comparatively low, it is increasing over time. In the 10-year study period, a total of 44,741 cases was reported with a mean annual crude incidence rate of 68.4 cases/100,000, mean annual age-adjusted incidence rate of 111.9 cases/100,000, and a monthly rate increase of 1.2 (cases/100,000)/month. This study also revealed that the spatial and temporal characteristics of cancer vary among the governorates. Amman, which includes the capital city and hosts more than one-third of the population of the country, reported 61.0% of the total number of cases. Amman also reported the highest annual crude incidence rate (105.3 cases/100,000), the highest annual age-adjusted incidence rate (160.6 cases/100,000), and the highest rate of increase (0.7 (cases/100,000)/month) forming a high-rate cluster. Excluding the three governorates Amman, Balqa, and Ma’daba, low-rate clusters were found with regard to the remaining governorates. All governorates, except Irbid and Mafraq, showed significant rates of increase of cancer incidence. However, no clear seasonality pattern with respect to cancer incidence was discerned.


Author(s):  
Kirk Osmond Douglas ◽  
Thelma Alafia Samuels ◽  
Marquita Gittens-St. Hilaire

Analysis of the demographic, temporal and seasonal distribution of hantavirus infections in Barbados was conducted using national surveillance data for 861 laboratory confirmed cases during 2008-2016. The crude incidence rate of hantavirus infections varied from 5.05 to 100.16 per 100,000 persons per year. One major hantavirus epidemic occurred in Barbados during 2010. Hantavirus cases occurred throughout the year with low level transmission during the dry season (December to June) with increased transmission during rainy season (July to November) and a seasonal peak in August. Hantavirus incidence rates were significantly higher in females than males every year during the study period. More than 50% of hantavirus cases were 30 years of age or less. The highest incidence rate (63.36 cases per 100,000 population) was observed among patients 0–4 years of age. This represents the first epidemiological data for hantavirus disease among an entire population in the English-speaking Caribbean.


2021 ◽  
Vol 19 (3) ◽  
pp. 301-305
Author(s):  
I. V. Veyalkin ◽  
◽  
A. A. Cheshik ◽  
S. N. Nikonovich ◽  
◽  
...  

Introduction. Sustainable development of territories affected by the Chernobyl disaster, require a number of managerial decisions, to reduce the level of radiophobia and psycho-emotional stress in society. Aim. To study the relationship between the indicators of the incidence of hemoblastosis with the density of contamination of territories with radioactive elements. Material and methods. An ecological population epidemiological study based on the calculation of the correlation coefficients of the incidence rates of hemoblastosis with the density of radioactive contamination. Results. There is no connection between the incidence of hemoblastosis and the density of radioactive contamination of territories. A statistically significant risk of multiple myeloma is observed in areas with a 137Cs contamination density of 1.0-4.99 Ci/km2. There was a statistically significant strong (r> 0.95) correlation between the crude incidence rate and standardized by age, sex and place of residence incidence ratio. The presence of strong correlations between these indicators give the possibility to use crude incidence rate instead of SIR in the analysis of morbidity by rayons. Conclusions. No correlation was found between the incidence of hemoblastosis and the density of radioactive contamination.


2015 ◽  
Vol 2015 ◽  
pp. 1-8
Author(s):  
Pauline Duke ◽  
Marshall Godwin ◽  
Mandy Peach ◽  
Jacqueline Fortier ◽  
Stephen Bornstein ◽  
...  

Background. The Argentia region of Newfoundland and Labrador, Canada, was home to a US naval base during a 40-year period between the 1940s and the 1990s. Activities on the base resulted in contamination of the soil and groundwater in the region with chemicals such as heavy metals and dioxins, and residents have expressed concern about higher rates of cancer in their community. This study investigated the rate of cancer diagnosis that is disproportionately high in the Argentia region.Methods. Cases of cancer diagnosed between 1985 and 2011 were obtained for the Argentia region, two comparison communities, and the province of Newfoundland and Labrador. Crude and age-standardized incidence rates of cancer diagnosis were calculated and compared. The crude incidence rate was adjusted for differences in age demographics using census data, and age-standardized incidence rates were compared.Results. Although the Argentia region had a higher crude rate of cancer diagnosis, the age-standardized incidence rate did not differ significantly from the comparison communities or the provincial average. Argentia has an aging population, which may have influenced the perception of increased cancer diagnosis in the community.Conclusions. We did not detect an increased burden of cancer in the Argentia region.


2020 ◽  
Vol 19 (6) ◽  
pp. 19-27
Author(s):  
L. M. Minkina ◽  
M. M. Tsvetkov ◽  
Ya. S. Tikhonova ◽  
M. A. Postoykina

Background. Cancer is a leading cause of death in children and adolescents worldwide. The cancer incidence rate in children and adolescents has been on the rise for decades. Climatic, geographic and social factors of the region play an important role for cancer incidence.Objective: to analyze the cancer incidence and mortality rates in children and adolescents of Prymorsky krai.Methods. Cancer incidence rates in Russia for 2008–2018 as well as cancer incidence among children treated at the regional pediatric hematology/oncology center (Vladivostok, Russia) for 2014–2019 were analyzed.Results. No statistically significant differences in the cancer incidence rates for the 2008–2018 period between children and adolescents of Primorsky krai and the russian federation in the whole and the far-eastern federal district were found. In in Primorsky krai, there was a variability in the incidence rate during the analyzed period, a negative average annual growth rate in the group of children under 14 years of age (-0.86 %). For the 2008–2018 period, the cancer mortality rate in children and adolescents of Primorsky krai significantly decreased (from 5.65 ‰ in 2008 to 2.6 ‰ in 2018), with the average annual increase rate in children aged 017 years of -9.17 %. In 2014–2019, the quality of cancer detection improved significantly, and the number of children and adolescents with stage iiiiv cancer reduced.Conclusion. Cancer prevention and early detection can potentially reduce the cancer incidence and mortality rates in children and adolescents in Primorsky krai. Population-based cancer registries are needed for quantifying the burden of cancer in children and adolescents and assessing prevention and control programs.


2020 ◽  
Author(s):  
Kevin Foote ◽  
Karl Kingsley

BACKGROUND Reviews of national and state-specific cancer registries have revealed differences in rates of oral cancer incidence and mortality that have implications for public health research and policy. Many significant associations between head and neck (oral) cancers and major risk factors, such as cigarette usage, may be influenced by public health policy such as smoking restrictions and bans – including the Nevada Clean Indoor Act of 2006 (and subsequent modification in 2011). OBJECTIVE Although evaluation of general and regional advances in public policy have been previously evaluated, no recent studies have focused specifically on the changes to the epidemiology of oral cancer incidence and mortality in Nevada. METHODS Cancer incidence and mortality rate data were obtained from the National Cancer Institute (NCI) Division of Cancer Control and Population Sciences (DCCPS) Surveillance, Epidemiology and End Results (SEER) program. Most recently available rate changes in cancer incidence and mortality for Nevada included the years 2012 – 2016 and are age-adjusted to the year 2000 standard US population. Comparisons of any differences between Nevada and the overall US population were evaluated using Chi square analysis. RESULTS This analysis revealed that the overall rates of incidence and mortality from oral cancer in Nevada differs from that observed in the overall US population. For example, although the incidence of oral cancer among Caucasians is increasing in Nevada and the US overall, it is increasing at nearly twice that rate in Nevada, P=0.0002. In addition, although oral cancer incidence among Minorities in the US is declining, it is increasing in Nevada , P=0.0001. Analysis of reported mortality causes revealed that mortality from oral cancer increased in the US overall but declined in Nevada during the same period (2012-2016). More specifically, mortality among both Males and Females in the US is increasing, but is declining in Nevada, P=0.0027. CONCLUSIONS Analysis of the epidemiologic data from Nevada compared with the overall US revealed significant differences in rates of oral cancer incidence and mortality. More specifically, oral cancer incidence increased in Nevada between 2012-2016 among all groups analyzed (Males, Females, White, Minority), while decreases were observed nationally among Females and Minorities. Although mortality in Nevada decreased over this same time period (in contrast to the national trends), the lag time between diagnosis (incidence) and mortality suggests that these trends will change in the near future. CLINICALTRIAL Not applicable


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.


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