ObjectiveTo get to know the status of health statistics postgraduate teaching and requirements during the study, and provide a basis to improve medical statistics teaching. MethodsPostgraduate students of 2008 grade of Dalian Medical University were selected randomly and filled in the self-designed questionnaire. Results52.6％ of the students considered that medical statistics was more important than other courses. 72.6％ of the students thought that medical statistics was difficult. Up to 30％of the students couldn't master and apply superior statistical analysis technique. ConclusionThe results of the survey offered basis and direction for enhancing the teaching quality and improving teaching methods.

Objective To analyze the trend of transitional care in recent ten years and to find the advantages and shortages in this field between home and abroad, so as to provide reference for nursing researchers in China. Methods The literatures about transitional care pub-lished from January, 2005 to August, 2016 from Web of Science and CNKI were retrieved, and the visualizing map was drawn by operating CiteSpaceⅡ. Results The annual number publication of transitional care steadily increased in the world in recent ten years. China issued a small amount of documents before 2012, and then the research of transitional care obviously increased, while the number was comparable to the international in 2015. USA played a leading role in the field;China issued only 2%of the total, ranking the 9th. By comparing domestic and foreign research hot topics, international transitional care studies paid more attention to nursing program and the effect, while China fo-cused on the research of the disease. Research frontier showed that international transitional care service expanded to more and more sub-jects gradually, and inclined to the continuation of management, community and family support nursing research, which was relatively lack in China. Conclusion In recent years, the research of transitional care received increasing attention in China, while the depth and breadth of study was still lacking. China should learn from foreign research hot topics and frontiers to explore transitional care system, and provied pa-tients discharged nursing support and self care knowledge, to enrich high quality nursing connotation.

OBJECTIVE To investigate the tinnitus' prevalence in Healthy check-up population in Dalian City. METHODS 1748 cases (male 806, female 942) were chosen from the Physical Examination Center of our hospital from February 1st, 2015 to April 1st, 2015, the tinnitus questionnaire was performed. For the cases with the tinnitus symptoms, the characteristics of tinnitus were further inquired, including the course of tinnitus, seizure frequency, the duration of tinnitus, pulsatile or persistent, unilateral or bilateral. RESULTS The total prevalence of tinnitus is 32.4%(566/1748), the prevalence of persistent tinnitus is 18.3%(320/1748), and the transient tinnitus is 14.1%(246/1748); The prevalence of tinnitus in female are 36.4%(343/942), 20.0%(188/942) and 16.5%(155/942) in turn, which are higher than that of the male 27.7%(223/806), P<0.01; 16.4%(132/806), P =0.054, and 11.3%(91/806), P<0.01. Both the total and persistent tinnitus prevalence increase with age(P<0.01), but the transient tinnitus doesn't increase with age. The prevalence of objective and subjective tinnitus are 1.3%(6.9% out of total prevalence of tinnitus), and 17.0%(93.1% out of total prevalence of tinnitus), respectively. The rate of bilateral tinnitus is 78.1% out of total tinnitus, and rate of unilateral tinnitus is 21.9%(right 11.6%, left 10.3%). In addition, the rates of acute tinnitus, subacute tinnitus, and chronic tinnitus are 4.4%, 3.8%, and 91.9% out of total, respectively. Otherwise, the rates of sleep disorders and hearing loss complaining accounted for 31.9% and 14.1% respectively. CONCLUSION The prevalence of tinnitus is high in healthy check-up population of Dalian, the total prevalence of tinnitus is 32.4%, mainly bilateral,chronic and subjective.

Objective To explore the effect of unsupported arm exercise (UAE) on dyspnea, exercise endurance of upper limbs and qual-ity of life in patients with chronic obstructive pulmonary disease (COPD). Methods From May to October, 2014, totally 70 patients with COPD were recruited and were randomly assigned to control group and intervention group. Both groups received routine care, and the inter-vention group performed UAE for six weeks additionally. The COPD Assessment Test (CAT), baseline dyspnoea index (BDI) and six-min-ute Pegbord and Ring Test (6PBRT) were recorded. Results The scores of CAT and BDI, and the number of turns in six minutes were better in the intervention group than in the control group (P<0.05). Conclusion UAE can increase the exercise endurance of upper limbs, relieve the dyspnea, and improve the quality of life in patients with COPD.

Objective To evaluate the role and surgical curative effect of the holmium laser under minor-caliber ureteroscope (F4.5) for the treatment of incarcerated ureteral calculus. Methods The holmium laser under minor-caliber ureteroscope (F4.5) was used to treat the incarcerated ureteral calculus with the course more than 2 months in 286 cases (334 sides) . Results 262 patients (304 sides) were successful in operation of single cavity treatment, with success rate of 91.6%. Conclusion Long course incarcerated ureteral calculus often associated with ureteral obstruction lesions (narrow,polyp,granulation hyperplasia,ureter cyst,etc.). Compared with thick ureteroscopy, minor-caliber ureteroscope has high single success rate for the treatment of incarcerated ureteral calculus with high safety, less complications, high gravel and platoon stone rates, and simultaneous treatment of the ureteral obstruction lesions.

Objective: To discuss the risk factors of suicide with psychological autopsy method. Methods: 66 complete suicides from Jinzhou and Zhuanghe of Dalian , LiaoNing province, which were individually matched with control population. Results: Three main risk factors of suicide remained in the final conditional logistic regression model. They were social support (OR = 0.66, 95%CI = 0.48 - 0.91 ), depression (OR=1.18, 95%CI=1.03-1.35) and neurosis (OR=2594.59,95%CI=6.29-1069550) . Conclusion: The combined effect of multiple factors increases the risk of suicide but not the unique effect of single factor. The suicide preventive efforts should focus on individuals exposed to multiple risk factors.

Objective To evaluate the effectiveness of transurethral holmium laser treatment for multiple complex bladder pathological changes.Methods Clinical data of 507 cases of transurethral holmium laser resection for multiple complex bladder pathological changes under endoscope from 2001 to 2005 were retrospectively reviewed.A total of 17 types of bladder pathological changes were encountered,and 2 or more types of pathological changes occurred simultaneously in 111 cases,including 36 cases of 3 types of coexisting changes.Results Primary operation was performed in 505 patients,and two-stage operation was performed in 2 patients.The operation time was 5~35 min(mean,20 min).No obturator nerve reflex and other complications were seen.The operation was accomplished in 3 patients with cardiac pacemaker and 3 patients with coronary stent.Follow-up examinations in all the cases for 12~24 months revealed no relapse.Conclusions Transurethral holmium laser resection for multiple complex bladder pathological changes is safe and reliable.During the procedure,the degree of resection depth in the bladder wall can be precisely controlled.It can be used as the first choice for minimally invasive treatment of multiple complex bladder pathological changes.

ObjectiveTo evaluate the role of laparoscopic ultrasonography (LUS) in laparoscopic ureterolithotomy.MethodsLUS was utilized in laparoscopic ureterolithotomy for 7 cases of ureterolith to locate the ureter and stone.ResultsLUS demonstrated the relationship of the ureter to the adjacent structures and guided the dissection of the ureter in all the 7 patients and precisely localized the position of calculi.The stone could be touched by atraumatic clamps in 5 cases.LUS-demonstrated localizations of the ureter and calculi were verified on laparoscopic ureterotomy in the other 2.The mean operating time for LUS was 14 min (ranging from 9 to 20 min ).ConclusionsLUS is a real adjuvant means for locating the ureter and stone.

Objective To appraise the diagnostic capability of laparoscopic ultrasonography (LUS) for urinary system injury induced by laparoscopic surgery in goats. Methods Animal models of different types of urinary system injury at different sites were established in five goats. One goat without injury was set as a negative control. LUS was used to examine the animals following randomization and single-blind principles. Results The sensitivity of LUS was 76.9% (10/13),specificity was 100%,and the false-negative rate was 23.1% (3/13). No false-positive results were detected in this study. The sham injury was accurately detected through LUS. The scan time of LUS ranged from 19 to 25 min with a mean of 21 min. Conclusions LUS is of value in the diagnosis of urinary system injury.