一般人群乙型肝炎調(diào)查、試劑評(píng)價(jià)及混合血清法檢測(cè)的初步探討
[Abstract]:Objective: (1) to investigate the infection of hepatitis B in Jiangsu province. (2) to study and compare the detection performance of domestic hepatitis B surface antigen diagnostic kit and the corresponding foreign kit, and to evaluate the cutoff value of each kit. (3) to establish a mathematical model for the detection of viral nucleic acid by two-dimensional mixed serum method, and to discuss the optimal number of mixed samples and the corresponding saved detection times. Methods: (1) according to the multi-stage sampling, the general population of Jintan City, Haimen City, Haian County and Ganyu County were selected to detect the serological indexes of hepatitis B. (2) the detection indexes of hepatitis B were compared by SAS8.0 software. The influencing factors of hepatitis B indexes were analyzed by Logistic regression analysis. (3) the known HBsAg negative and positive serum and national reference materials were detected by domestic and foreign hepatitis B surface antigen diagnostic kits, and the detection performance of each kit was compared. (4) according to the OD value of the test samples, the ROC curves of each kit were drawn. According to the ROC curve, the optimal cutoff value was obtained, and the sensitivity and specificity of the corresponding kit were calculated, and compared with the sensitivity and specificity obtained by the cutoff value provided by the kit. The results were as follows: (1) the total positive rate of HBsAg in Jiangsu province was 4.84%. The probability of HBsAg positive in older group was higher than that in younger age group, and the probability of HBsAg positive in central and southern Jiangsu was higher than that in northern Jiangsu. The positive probability of HBsAg in women was lower than that in males. The total positive rate of HBsAg was 50.34%. The positive probability of HBsAg in all age groups over 20 years old was lower than that in 1 < 5 years old group. There was no difference in the probability of HBsAb positive between men and women. The probability of HBsAb positive in Jiangsu was lower than that in northern Jiangsu, while the positive probability of HBsAb in southern Jiangsu was 49.83%. The older the age, the greater the probability of HBcAb positive, and the positive probability of HBcAb in women was higher than that in males. The probability of HBcAb positive in each group over 20 years old was higher than that in the group aged 1 to 5 years old. Compared with northern Jiangsu, the probability of HBcAb positive in central and southern Jiangsu is higher. (2) based on the known HBsAg negative, positive serum and national reference materials, the sensitivity of Italian Solin hepatitis B surface antigen diagnostic kit is higher than that of other kits. According to the known HBsAg negative, positive serum and national reference materials, excluding the sensitivity reference materials of (NICPBP) in China Institute of Pharmaceutical and Biological products, there was no difference in the sensitivity of each kit. The sensitivity of each kit was not different according to the national reference material and excluding the NICPBP sensitivity reference material. (3) there was no difference in the sensitivity of the four domestic hepatitis B surface antigen diagnostic kits based on the sensitivity reference of NICPBP and the (NCCL) low value positive reference of the clinical examination center of the Ministry of Health. The sensitivity of Italian Solin to low value positive reference was higher than that of all domestic kits. (4) according to NICPBP and NCCL reference materials, the sensitivity of hepatitis B surface antigen domestic diagnostic kit was higher than that of cutoff value given in specification, and the sensitivity of Italian Solin was the same before and after. There was no difference in the specificity of each kit under different standards. (5) the mathematical model of two-dimensional mixed serum method showed that the mixed serum method could reduce the detection times and save the screening cost.
【學(xué)位授予單位】:東南大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2006
【分類號(hào)】:R181.3
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