• Title/Summary/Keyword: epidemiological trends

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Epidemiological Trends of Histopathologically WHO Classified CNS Tumors in Developing Countries: Systematic Review

  • Khan, Ishaq;Bangash, Mohammed;Baeesa, Saleh;Jamal, Awatif;Carracedo, Angel;Alghamdi, Fahad;Qashqari, Hanadi;Abuzenadah, Adel;AlQahtani, Mohammed;Damanhouri, Ghazi;Chaudhary, Adeel;Hussein, Deema
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.1
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    • pp.205-216
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    • 2015
  • Background: Many developing countries are lagging behind in reporting epidemiological data for individual central nervous system (CNS) tumors. This paper aimed to elicit patterns for the epidemiology of individual World Health Organization (WHO) classified CNS tumors in countries registered by WHO as "developing". Materials and Methods: Cyber search was carried out through 66 cancer networks/registries and 181 PubMed published papers that reported counts of CNS tumors for the period of 2009-2012. The relationship between the natural log of incidence Age Standardized Rate (ASR) reported by Globocan and Latitude/ Longitude was investigated. Results: Registries for 21 countries displayed information related to CNS tumors. In contrast tends for classified CNS tumor cases were identified for 38 countries via 181 PubMed publications. Extracted data showed a majority of unclassified reported cases [PubMed (38 countries, 45.7%), registries (21 countries, 96.1%)]. For classified tumors, astrocytic tumors were the most frequently reported type [PubMed (38 countries, 1,245 cases, 15.7%), registries (21 countries, 627 cases, 1.99%]. A significant linear regression relationship emerged between latitudes and reported cases of CNS tumors. Conclusions: Previously unreported trends of frequencies for individually classified CNS tumors were elucidated and a possible link of CNS tumors occurrence with geographical location emerged.

Epidemiology of Pancreatic Cancer in Vojvodina Province in Serbia

  • Smiljana, Rajcevic;Mikov, Marica Miladinov;Petrovic, Vasa;Jasna, Trifunovic;Tihomir, Dugandzija;Milanka, Tatic
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.24
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    • pp.10779-10782
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    • 2015
  • Purpose: Analysis of descriptive epidemiological characteristics of pancreatic cancer in Vojvodina, Serbia. Materials and Methods: The study covers population of Vojvodina in the period from 2000 to 2009. The method used for data processing was the descriptive. The data, referring to a specified period of time, were analyzed from chronological and demographic aspects and according to histological diagnosis. Results: In the period from 2000 to 2009, there were 2,108 registered cases of pancreatic cancer of which 1,886 had a fatal outcome. Standardized incidence rates varied between 5.7 and 9.1 per 100,000 population in males and between 4.2 and 5.3 in females. Linear incidence trends in males in the specified period of time, based on crude (r=0.7883, p<0.05) and standardized (r=0,6373, p<0,05) incidence rates, demonstrated increase. Annual percent increase in the crude incidence rate was 4.5% in males, and 2.8% in females. Age-standardized mortality rates varied between 5.2 and 7.5 per 100,000 population in males and 3.6 and 4.7 in females. Linear mortality trends in males in the specified period of time, based on crude (r=0.8795, p<0.05) and standardized (r=0.7669, p<0.05) mortality rates, also demonstrated annual percent increase. Conclusions: Data analysis shows unfavorable onco-epidemiological situation related to pancreatic cancer in Vojvodina, in aspects of both incidence and mortality. Absence of primary and secondary prevention does not allow medical institutions to successfully fight against this disease.

Decadal analysis of livestock tuberculosis in Korea (2013~2022): Epidemiological patterns and trends

  • Yeonsu Oh;Dongseob Tark;Gwang-Seon Ryoo;Dae-Sung Yoo;Woo, H. Kim;Won-Il Kim;Choi-Kyu Park;Won-Keun Kim;Ho-Seong Cho
    • Korean Journal of Veterinary Service
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    • v.46 no.4
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    • pp.293-302
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    • 2023
  • This study provides a comprehensive analysis of the epidemiological trends and challenges in managing tuberculosis (TB) in livestock in Korea from 2013 to 2022. Tuberculosis, caused by the Mycobacterium tuberculosis complex, is a significant zoonotic disease affecting cattle, deer, and other domesticated animals. Despite the initiation of a test-and-slaughter eradication policy in 1964, TB has continued to persist in Korean livestock, particularly in cattle and deer. This study used data from the Korea Animal Health Integrated System and provincial animal health laboratories to analyze TB incidence in various livestock including different cattle breeds and deer species. The results from 2013 to 2022 showed a peak in TB cases in 2019 with a subsequent decline by 2022. The study highlighted a significant incidence of TB in Korean native cattle and the need for amore inclusive approach towards TB testing and control in different cattle breeds. Additionally, the study underscored the importance of addressing TB in other animals such as goats, wildlife, and companion animals for a holistic approach to TB eradication in Korea. The findings suggest that while the test-and-slaughter strategy has been historically effective, there is a need for adaptation to the current challenges, and learning from successful eradiation stories on other countries like Australia. A collaborative effort involving an expanded surveillance system, active private sector participation, and robust government support essential for the efficient eradication of TB in livestock in Korea.

Trends in Gender-based Health Inequality in a Transitional Society: A Historical Analysis of South Korea

  • Chun, Hee-Ran;Cho, Sung-Il;Khang, Young-Ho;Kang, Min-Ah;Kim, Il-Ho
    • Journal of Preventive Medicine and Public Health
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    • v.45 no.2
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    • pp.113-121
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    • 2012
  • Objectives: This study examined the trends in gender disparity in the self-rated health of people aged 25 to 64 in South Korea, a rapidly changing society, with specific attention to socio-structural inequality. Methods: Representative sample data were obtained from six successive, nationwide Social Statistics Surveys of the Korean National Statistical Office performed during 1992 to 2010. Results: The results showed a convergent trend in poor self-rated health between genders since 1992, with a sharper decline in gender disparity observed in younger adults (aged 25 to 44) than in older adults (aged 45 to 64). The diminishing gender gap seemed to be attributable to an increase in women;s educational attainment levels and to their higher status in the labor market. Conclusions: The study indicated the importance of equitable social opportunities for both genders for understanding the historical trends in the gender gap in the self-reported health data from South Korea.

Malignant Tumours of the Central Nervous System in Kazakhstan - Incidence Trends from 2004-2011

  • Igissinov, Nurbek;Akshulakov, Serik;Igissinov, Saginbek;Moore, Malcolm;Adilbekov, Yerzhan;Gaitova, Kamilla;Kissaev, Yermek;Mustafina, Meruert
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.7
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    • pp.4181-4186
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    • 2013
  • In the article were observed the epidemiological aspects of malignant tumors of the central nervous system (MT CNS) in Kazakhstan in a retrospective study for the years 2004-2011. The material of the study was consolidated accounting data of oncology centers on patients with MT CNS (C70-72) with first time established diagnosis. Calculated were crude, age, standardized (world standard), aligned and predicted incidence of MT CNS among both male and female populations. It was found that over the studied period, there were 4,604 cases of MT CNS. The average annual crude incidence rate of MT CNS in total population was $3.7{\pm}0.1^0/_{0000}$. Trends in aligned incidence rates in the whole country had a tendency to increase (T=+0.9%). Defined levels of morbidity MT CNS in the whole population in different regions of Kazakhstan: low up to $2.87^0/_{0000}$, the average from 2.87 to $4.45^0/_{0000}$ and high from $4.45^0/_{0000}$ and above on the basis of which was given the space-time estimate. Age and sex differences in MT CNS incidence were also clearly established.

Google Search Trends Predicting Disease Outbreaks: An Analysis from India

  • Verma, Madhur;Kishore, Kamal;Kumar, Mukesh;Sondh, Aparajita Ravi;Aggarwal, Gaurav;Kathirvel, Soundappan
    • Healthcare Informatics Research
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    • v.24 no.4
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    • pp.300-308
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    • 2018
  • Objectives: Prompt detection is a cornerstone in the control and prevention of infectious diseases. The Integrated Disease Surveillance Project of India identifies outbreaks, but it does not exactly predict outbreaks. This study was conducted to assess temporal correlation between Google Trends and Integrated Disease Surveillance Programme (IDSP) data and to determine the feasibility of using Google Trends for the prediction of outbreaks or epidemics. Methods: The Google search queries related to malaria, dengue fever, chikungunya, and enteric fever for Chandigarh union territory and Haryana state of India in 2016 were extracted and compared with presumptive form data of the IDSP. Spearman correlation and scatter plots were used to depict the statistical relationship between the two datasets. Time trend plots were constructed to assess the correlation between Google search trends and disease notification under the IDSP. Results: Temporal correlation was observed between the IDSP reporting and Google search trends. Time series analysis of the Google Trends showed strong correlation with the IDSP data with a lag of -2 to -3 weeks for chikungunya and dengue fever in Chandigarh (r > 0.80) and Haryana (r > 0.70). Malaria and enteric fever showed a lag period of -2 to -3 weeks with moderate correlation. Conclusions: Similar results were obtained when applying the results of previous studies to specific diseases, and it is considered that many other diseases should be studied at the national and sub-national levels.

Epidemiological survey of Bovine Tuberculosis in Kyonggi province (1987-1996) (경기지역의 우결핵 발생에 관한 역학적 고찰(1987-1996))

  • 국정희;심항섭;고태오;우종태;조중현;박유순
    • Korean Journal of Veterinary Service
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    • v.21 no.1
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    • pp.1-12
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    • 1998
  • As the result of epidemiological analysis on bovine tuberculosis in Kyonggi province during the last ten years(1987-1996), 1. The annual incidence number of bovine tuberculosis positive farms in Kyonggi province fell down from 81 in 1987 to 14 in 1989. But the incidence is increased since 1990, in 1995 the incidence number was 102 farms of the most incidence. Total number of bovine tuberculosis positive farms were 456 farms(56.7%) in Kyonggi province during the 1987-1996 period. 2. The developmental trends of bovine tuberculosis positive heads was similiar to that of positive farms. Since 1993, the incidence was suddenly increased. Total number of bovine tuberculosis positive heads were 1,015 head(64.3%) in Kyonggi province during the 10 years. 3. Average incidence for rate during the last ten years(1987-1996) was 0.10%. The positive rate was suddenly increased since 1993 and in 1996, the positive rate was 0.23% of the highest incidence. 4. Regional Incidence number of bovine tuberculosis positive heads in Kyonggi province during the last seven years(1990-1996) was the most in Hwasung, Pochon, Pyungtek in order of Incidence and bovine tuberculosis positive density was 1.297% of the highest in Buchon. 5. In 244 farms(82.4%), bovine tuberculosis first occurred during the last seven years (1990-1996) but in farms over second occurrence, the number of bovine tuberculosis positive heads were 520 heads(58.2%).

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Epidemiological Assessment of Leukemia in Kazakhstan, 2003-2012

  • Igissinov, Nurbek;Kulmirzayeva, Dariyana;Moore, Malcolm A.;Igissinov, Saginbek;Baidosova, Gulnara;Akpolatova, Gulnur;Bukeyeva, Zhanar;Omralina, Yelvira
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.16
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    • pp.6969-6972
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    • 2014
  • Cancer is a major health problem facing the entire world, and Kazakhstan is not the exception. The aim of this study was to present an epidemiological assessment of leukemia in the population of Kazakhstan during 2003-2012. This descriptive and retrospective study was based on data obtained from all oncological organizations of the whole country. Age standardized incidence rates per 100,000 population for leukemia were calculated. Totally, 6,741 new cases of leukemia were registered in Kazakhstan during the 10 year period. The mean age of patients with leukemia was 48.5. The ASRs for leukemia among men and women were 5.3 and 3.6, respectively (p<0.001). In conclusion, our results showed a high incidence rate of leukemia in Kazakhstan, especially in the north of the country. The incidence of leukemia was significantly higher in males and increased with age. Determining and controlling important risk factors of leukemia may lead to decrease in its burden.

Changes in Co-Occurrence of Smoking and Harmful Drinking among Youth: a Study from the Chi Linh Demographic - Epidemiological Surveillance System in Vietnam, 2006-2013

  • Duong, Minh Duc;Le, Thi Vui;Nguyen, Thuy Quynh;Hoang, Van Minh
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.sup1
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    • pp.55-63
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    • 2016
  • Smoking and harmful drinking dramatically increase health risks but little is known about their cooccurrence and factors that influence this co-habit, limiting development and implementation of appropriately targeted prevention interventions. This study was conducted among youth aged 10-24 years old in the Chi Linh Demographic - Epidemiological Surveillance System (CHILILAB DESS). The total numbers in the first, second and third rounds in 2006, 2009 and 2013 were 12,406, 10,211, and 7,654, respectively. A random-effects logit model controlling for both time-variant and time-invariant variables was applied to explore factors associated with current smoking, harmful drinking, and occurrence of smoking and harmful drinking together. We found dramatically increasing trends in current smoking, harmful drinking and co-occurrence among youth. Our results indicate similar health problems among youth in peri-urban areas in Vietnam. Demographic characteristics (older age, being male, being unmarried, and having informal work) appeared to be predictors for smoking and drinking behaviour. Besides, peer and family members had significant influence on smoking, whereas having a close-friend who was smoking was the most important variable. The results suggested that smoking and harmful drinking should not be solved with separate, stand-alone interventions but rather with integrated efforts.

Epidemiological Aspects of Morbidity and Mortality from Cervical Cancer in Kazakhstan

  • Igissinov, Nurbek;Nuralina, Indira;Igissinova, Gulnur;Kim, Sergei;Moore, Malcolm;Igissinov, Saginbek;Khassenova, Zauresh
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.5
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    • pp.2345-2348
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    • 2012
  • Epidemiological studies of cancer incidence in Kazakhstan have revealed an uneven distribution for cervical cancer. Incidence and mortality rates were calculated for different regions of the republic, including the two major cities of Almaty and Astana, in 1999-2008. Defined levels for cartograms for incidence were low (up to 12.8/100,000), medium (12.8 to 15.9) and high (above 15.9) and for mortality were up to 7.1, 7.1 to 10.8 and more than 10.8, respectively. Basically high incidence rates were identified in the eastern, central and northern parts of the country and in Almaty. Such differences in cervical cancer data, and also variation in mortality/ incidence ratios, from a low of 0.4 in Almaty to a high of 0.71 in Zhambyl, point to variation in demographic and medical features which impact on risk and prognistic factors for cervical cancer in the country. Further research is necessary to highlight areas for emphasis in cancer control programs for this important cancer.