Abstract
Cholangiocarcinoma (CCA), a major problem of health in Thailand, particularly in Northeastern and Northern regions, is generally incurable and rapidly lethal because of presentation in stage 3 or 4. Early diagnosis of stage 1 and 2 could allow better survival. Therefore, this study aimed to provide a distribution map of populations at risk for CCA in BuaYai district of Nakhon Ratchasima province, Northeast Thailand. A cross-sectional survey was carried out in 10 sub-districts and 122 villages, during June and November 2015. The populations at risk for CCA were screened using the Korat CCA verbal screening test (KCVST) and then risk areas were displayed by using Google map (GM). A total of 11,435 individuals from a 26,198 population completed the KCVST. The majority had a low score of risk for CCA (1-4 points; 93.3%). High scores with 6, 7 and 8 points accounted for 1.20%, 0.13% and 0.02%. The population at risk was found frequently in sub-district municipalities, followed by sub-district administrative organization and town municipalities, (F=396.220, P-value=0.000). Distribution mapping comprised 11 layers: 1, district; 2, local administrative organization; 3, hospital; 4, KCVST opisthorchiasis; 5, KCVST praziquantel used; 6, KCVST cholelithiasis; 7, KCVST raw fish consumption; 8, KCVST alcohol consumption; 9, KCVST pesticide used; 10, KCVST relative family with CCA; and 11, KCVST naive northeastern people. Geovisual display is now available online. This study indicated that the population at high risk of CCA in Bua Yai district is low, therefore setting a zero model project is possible. Key success factors for disease prevention and control need further study. GM production is suitable for further CCA surveillance and monitoring of the population with a high risk score in this area.
Highlights
Cholangiocarcinoma (CCA) is a bile duct cancer, which originates in biliary epithelial cells, and occurs in the intrahepatic and extrahepatic regions of the bile duct (Green et al, 1991; Khuntikao 2005; Bhudhisawadi et al, 2012)
The populations at risk for CCA were screened using the Korat CCA verbal screening test (KCVST) and risk areas were displayed by using Google map (GM)
This study aimed to investigate the population at risk for CCA in BuaYai district of Nakhon Ratchasima province, Northeast of Thailand, and the distribution mapping of risk areas by using GM.This data is useful for further surveillance, monitoring, and long term care for the high risk areas
Summary
Cholangiocarcinoma (CCA) is a bile duct cancer, which originates in biliary epithelial cells, and occurs in the intrahepatic and extrahepatic regions of the bile duct (Green et al, 1991; Khuntikao 2005; Bhudhisawadi et al, 2012). Cholangiocarcinoma (CCA), a major problem of health in Thailand, in Northeastern and Northern regions, is generally incurable and rapidly lethal because of presentation in stage 3 or 4. This study aimed to provide a distribution map of populations at risk for CCA in BuaYai district of Nakhon Ratchasima province, Northeast Thailand. The majority had a low score of risk for CCA (1-4 points; 93.3%). Conclusions: This study indicated that the population at high risk of CCA in Bua Yai district is low, setting a zero model project is possible. GM production is suitable for further CCA surveillance and monitoring of the population with a high risk score in this area
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