Résumé
Objective:To evaluate the significance of the white blood cells count (WBC), squamous epithelial cells count (SEC), bacteria count (BACT), the ratio of squamous epithelial cells count and white blood cells count (S/W), and the examination of leukocyte esterase by dry chemical method in urine contamination and infection.Methods:A total of 60 cases of urine infection and 60 cases of urine contamination in female outpatients and inpatients in Taizhou Hospital of Traditional Chinese Medicine from January to December 2020 were retrospectively analyzed. The five indexes of WBC, SEC, S/W, BACT and leucocyte esterase were compared between the two groups, WBC, SEC, S/W and BACT were analyzed by receiver operating characteristic (ROC).Results:By comparing the detection results of WBC, SEC, S/W, BACT and leukocyte esterase between the contaminated group and the infected group, using the nonparametric test of two independent samples, the results showed that the median level of WBC in the contaminating group specimens was lower than in the infected group: 58.00 (28.00, 102.00)/μl vs. 329.00 (145.00, 775.50)/μl, the difference was statistically significant ( Z = -7.03, P<0.01). The median level of SEC, S/W and BACT in the contaminated group were higher than those in the infected group: 43.00 (16.25, 73.75)/μl vs. 5.00 (3.00, 12.00)/μl, 0.620 (0.285, 1.209) vs. 0.018 (0.007, 0.037), 21.00 (6.25, 78.50)/μl vs. 204.50 (22.50, 816.75)/μl, and the differences were all statistically significant ( P<0.01). There was no significant difference in the results of leukocyte esterase between the two groups ( χ2 = 1.37, P = 0.24). The ROC curves of WBC, SEC, S/W, BACT were drawn, and the results showed that the four indexes had statistical significance in distinguishing pollution from infection ( P<0.01). Conclusions:Vaginal secretion will affect the detection of leukocyte esterase, WBC, squamous epithelial cells and bacteria in urine. WBC, SEC, S/W and BACT can be used as the differential diagnosis indexes of urine infection and urine contamination, and S/W can be selected as the differential diagnosis index of urine contamination.
Résumé
In recent years, many researches that is related to waterborne diseases, especially diarrhea and water quality, safety, personal sanitation, hygiene have been conducting in developing country. Kharaa and Orkhon river are tributaries of the Selenge river basin and the many industries,agriculture, mining, provinces, soums are located in the near of Selenge river basin. Also Tuul,Kharaa and Orkhon river water is very polluted (Mongolian human Development Report 2010: Water and Development report).The aim of the research is to study correlation between to Kharaa and Orkhon river’s water pollution level and rate of gastrointestinal infectious diseases of people who live in the near of Selenge river basin.We analysed Kharaa and Orkhon river’s water quality and statistical data of gastrointestinal infectious diseases (such as dysentery, diarrhea, hepatitis A virus and others). Then we conducted correlation analysis between to river water pollution level and rate of intestinal infectious diseases. Kharaa and Orkhon river’s water was determined “less polluted” by physical, chemical andorganic indicators. But total number of bacteria was determined highly and Proteus vulgaris,Citrobacter freundi, Enterobacter agglomerans pathogens were detected in these river’s water. There were significant positive correlations between level of nitrit in river water and incidence of dysentery and diarrhea. (r=0.38, p=0.022; r=0.291, p=0.005).