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[Objective] According to \But often found on the the EPS results before and after of the same patients in the clinical change, and cause it to change Ⅲ a \\ Ⅲ b parting. Changes of this instability is not only caused by the uncertainty of typing, but also affect the patient's course of treatment and effect. This paper aims through extensive clinical investigation and scientific statistical methods to study the probability of occurrence of the unstable changes, and to explore the value of some other indicators in the clinical diagnosis of such patients with prostatitis. [Method] selected from our hospital from September 2010 to December prostate massage check initial EPS diagnosed patients with type III prostatitis as a sample. The upper age limit is expected to be set at 55 years of age, the study to rule out prostate hyperplasia. Exclude the stones of the bladder and urethra, urethral stricture affect urinary function disease patients, diagnostic criteria based on the 2009 Urology Clinic Guide to exclude the diagnosis of type III prostatitis standards EPS cultured bacteria in patients, EPS WBC ≧ 10 in HP prostatitis Ⅲ a type, and the WBC lt; 10 in HP Ⅲ b prostatitis. 2-4 weeks after diagnosis, review the EPS, and review the time line digital rectal examination, diagnostic evaluation of the NIH-CPSI symptom scale. All statistical analyzes were completed using SPSS 13.0 software package. After the end of the sample statistics, statistical methods, sample EPS results occur through changes in the proportion of the sample size. Change depending on whether grouping, and comparison between groups age, NIH-CPSI scale (mild symptoms, in severe) difference whether statistically significant. To count the chi-square test (or 2x3 chi-square test) obtained P values, P = lt; 0.05 as statistical criteria. [Results] The statistical study of 119 outpatients (age 17-55 years old, the average age of 32 ± 9), all subjects were in the EPS review 2-4 weeks after the first visit. EPS before and after mixed results and hence affect its Ⅲ a \\ Ⅲ b genotyping patients 34 cases, the rate was 28.57%. Them the inconsistency of patients before and after the diagnosis of 34 cases, the patients with type Ⅲ a change Ⅲ Ib for 22 cases, Ⅲ b-type changes in patients with type Ⅲ a 12. Change before and after the samples according to their statistical studies: no change in the average age of the group of 30 ± 8 years, changes in the average age of the group was 37 ± 10 years, according to the two sample t test or not is divided into two groups were compared between the two groups The data found, t = 3.9134 p <0.001, there is a statistically significant difference between two groups of age. Whether the basis for newly diagnosed EPS pus ball control, and no change in 85 patients, newly diagnosed 13 cases of pus ball EPS, and the changes in the group of 34 patients with newly diagnosed 12 cases of pus ball, according to the count data The chi-square test analysis, p lt; 0.05, statistically significant. Prostate digital examination found to have prostate nodule significantly increase or tenderness unusual number of cases, no change in group 14 cases, 12 cases within the group change, chi-square test based on the count data analysis, X20.05 = 3. 84X20 .01 = 6.63 X2 = 5.0395 p = 0.012 lt; 0.05, statistically significant. NIH-CPSI scale test of the two groups of patients, no change groups and change group of patients with mild to severe number of 45, 29, 11 and 15 people, 15 people, four people. 2x3 chi-square test, p gt; 0.05 between groups was not statistically significant. The course of disease investigation and based on the length of the course, divided into lt; 1, and gt; 1 count statistics. No change in the group, the duration of lt; less than one year, 48 patients, to patients 37 years, changes in group the disease duration lt; patients with 20 people in less than one year, to 1 year in patients with 14 people. According to the chi-square test analysis of count data X20.05 = 3.84 X20.01 = 6.63 X2 = 0.0549 p = 1.472 gt; 0.05, not statistically significant, indicating no significant difference in the duration of disease between the two groups. [Conclusion]. The typing changes with age were significantly associated, the parting average changes in patients older 2 the pus-positive patients significantly increased the rate of change, change pus ball-positive rate was significantly higher. 3 patients with positive DRE significantly higher rate of change, change DRE abnormal rate was significantly higher. 4. Course of the disease and symptoms of typing change was no significant correlation.
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