| Objective: In order to understand the affect of irrigation drainage on the health of resident population, we investigate the cause-specific mortality rate and occurrence of birth-defect in Luancheng county, Shijiazhuang, Hebei province, China, from 2002 to 2006. By compare the malignant tumor mortality rate between different irrigation areas. To provide intervention method for the sewage irrigation of influence crowd health in the next step.Methods: Cause of death review investigation. Investigation object and place: Investigates the Shijiazhuang Luancheng County sewage irrigation area cancer spectrum based on 80 ages at the beginning of the material, by the group sampling method, designated that sewage irrigation area for the Luancheng County Loudi township removes the water purification irrigation 6 villages to remain 10 villages, 2002-2006 year constant registered permanent address's complete casualty takes the investigation object, and chooses the condition and the Loudi township by the similar method is similar, but water purification irrigation's Niejiazhuang and Liulin store each 12 villages are the comparisons. Investigation content: From the Public security department, the birth control, the Center for Disease Control, the village committee gain the population, the fatality count, the birth number, and verifies with the review investigation's data, checking. The use survey form residence review investigates a Luancheng County sewage irrigation area Loudi town 2002-2006 year constant registered permanent address the complete casualty, the cause of death and the child-bearing women pregnancy number and the monstrosity number. And by the similar method and content, investigation was carried out in the water purification irrigation areas'Niejiazhuang and Liulintun village. Using the SPSS13.0 software analysis, the primary coverage includes: Describes the Luancheng County sewage irrigation area Loudi township and irrigation area Niejiazhuang, Liulin stores 2002-2006 years only male/female and entire population different cause of death other mortality rate, each kind of cause of death constitution compares and the cause of death cis-position, as well as two local women's rate of abortion. Selects the fifth national census the population data to take the standard population to carry on the sign, calculates two irrigation areas the sign mortality rates, usesχ2 to carry on the significance examination. The sewage irrigation which influenced the local resident digesting system malignant tumor was analyzed by the logistic and then found the related factor.Results: (1) Without the adjustment two kind of irrigation areas, the entire cause of death mortality rate performance irrigation area is only 588.03/100,000 slightly is higher than the sewage irrigation area 582.04/100,000, two irrigation area entire cause of death mortality rate and the national level compares some what low. The irrigation area entire cause of death mortality rate male is only 687.18/100,000 and the female is 470.31/100,000, the sewage irrigation area male is 642.21/100,000 and the female is 522.20/100,000. The sewage irrigation area's entire cause of death sign mortality rate is: 525.78/100,000, what only irrigation area is 453.14/100,000. After chi-square test,χ2=6.896, the sewage irrigation area sign mortality rate is only higher than the irrigation area. The sewage irrigation area masculine sign mortality rate is 632.69/100,000, the female is 424.76/100,000, the irrigation area sign mortality rate male is only 555.65/100,000, and the female is 350.03/100,000. In both sexes comparison, the sewage irrigation area male and the irrigation area male does not have the difference only after the chi-square test; the female is the sewage irrigation area is only higher than the irrigation area. (2) Entire cause of death mortality rate year tendency: Possible because reviews the year number is short only then for 5 years, therefore the sewage irrigation area thick mortality rate and the sign mortality rate have the declining trend, only the irrigation area thick mortality rate and the sign mortality rate have the rise tendency. (3) Main cause of death position and constitution: Two kind of irrigation area first four causes of death basic consistent. It's in turn: Heart cerebrovascular disease, malignant tumor, natural death. In two irrigation area male comparison sewage irrigation area besides malignant tumor compared to only irrigation area high, other are lower than only the irrigation area, respectively is 215.46/100,000 and 182.13/100,000. (4) Malignant tumor total mortality rate: 2002-2006 year malignant tumor's five annual mean total mortality rates in the sewage irrigation area is 175.24/100,000, occupies the entire cause of death 30.11%. And the male is 215.46/100,000, occupies the entire cause of death 33.55%, the female is 135.23/100,000, occupies the entire cause of death 25.91%. But only irrigation area slightly low 144.87/100,000, occupies the entire cause of death 26.64%, the male is 182.13/100,000, occupies the entire cause of death 25.91%, the female is 106.04/100,000, occupies the entire cause of death 22.63%. Two kind of irrigation area's malignant tumor mortality rate male are higher than the female, but the sewage irrigation area male actual tumor mortality rate is highest. The sewage irrigation area sign malignant tumor mortality rate is 159.97/100,000, the male is 212.29/100,000, the female is 112.23/100,000; The irrigation area sign malignant tumor is only 117.81/100,000, the male is 165.54/100,000, the female is 70.37/100,000. After the test,χ2=8.07,P<0.01 The sewage irrigation area malignant tumor mortality rate is higher than only the irrigation area. In comparison, the male and female has the difference and the sewage irrigation area male malignant tumor mortality rate after theχ2-test is higher than only the irrigation area (P<0.05, P<0.05). (5) Two kind of irrigation area cancer spectrum comparison: This investigation two kind of irrigation area first four natural tumors for stomach cancer, esophagus cancer, liver cancer, lung cancer. But each kind of cancer's sequence order differs from two irrigation areas. The sewage irrigation area is in turn the stomach cancer, liver cancer, the lung cancer, esophagus cancer. But the irrigation area is only the stomach cancer, esophagus cancer, the lung cancer, liver cancer. (6) In the male and female cancer spectrum's comparison, in the sewage irrigation area male, the feminine tumor sequence order is the same, is in turn: The stomach cancer, liver cancer, the lung cancer, esophagus cancer, occupy the complete tumor separately 86.41% and 78.46%. In the irrigation area male is in turn only: The stomach cancer, esophagus cancer, lung cancer and liver cancer, occupy the complete tumor 90.18%. The female is in turn: the esophagus cancer, stomach cancer, lung cancer and liver cancer, occupy the complete tumor 83.52%. (7) Two kind of irrigation area three kind of main digestive tract tumor sign comparison, the stomach cancer and liver cancer sewage irrigation area obviously is higher than only the irrigation area,P<0.01. (8) The annual variation tendency of major of death causes, the gastric cancer and liver cancer have ascendant tendency in sewage irrigation area. But the lung cancer and liver cancer have ascendant tendency in water irrigation area. (9) By binary logistic ,the results of risk factors : gastric cancer: wash hands after Sewage irrigation work, Sewage irrigation vegetable , drink raw water .their OR were 1.696,2.008,1.914. Esophageal carcinoma: wash hands after Sewage irrigation work, drink raw water. their OR were 1.412,1.329. Lung cancer: drink raw water, smoking, drinking. their OR were 1.791,3.850,1.446 in the sewage irrigation area. (10) Birth baby situation: This time investigates in 5 years do not find the teratogenesis. The unusual production rate of abortion sewage irrigation area is 13.16%, the irrigation area is 20.56% only. After the chi-square testχ2=0.998,P>0.05。Conclusion: The sewage irrigation is"the double-edged sword", though it has benefited by providing water source for irrigation, also has certain harmful aspect to the resident population. By compare the malignant tumor mortality rate between different irrigation areas, we found that irrigation drainage increased the whole mortality rate in resident population, especially the malignant tumor rate in male population. Wash hands after Sewage irrigation work, Sewage irrigation vegetable, drink raw water were the risk factors which can increase malignant tumor mortality in Sewage irrigation area. Therefore, intervention method should include the purification of sewage, improvement of the water supply and sewerage work, and decreasing water pollution.
|
PDF Full Text Request