The study of KBP of road construction workers of highway AIDS prevention project before and after intervention.

OBJECTIVE: To get scientific basis for further health education through the research of the road construction workers' KBP before and after the interventions of highway AIDS prevention project. METHODS: Multi-stage random sampling method was employeed to select workers of 8 sites from 14 sites along highway to investigate their AIDS knowledge, belief and performance (KBP) before and after highway AIDS prevention project. RESULTS: Over 90% of the investigated workers had ever heard about AIDS, and the non-skilled workers of lower educational level improved more after intervention. The correct answer rate of the three transmitting ways of AIDS of drivers which is the focused group of highway before and after intervention had the obvious statistical significance (P<0.05), and the other group's correct answer rates also had improved after intervention. Most people's understanding of preventing AIDS through correct use of condoms when having sex had a statistically significant difference(P<0.05) after prevention. The rates of using condoms of foremen and skilled workers when having sex with commercial sex worker/casual partner increased after intervention. CONCLUSIONS: The health education of HIV among the road construction workers is effective and further health education of HIV prevention should be carried out among the road construction workers to improve their knowledge and awareness of avoiding the high-risk behaviors.

Ultrasonic coagulator for thyroidectomy: a systematic review of randomized controlled trials.

OBJECTIVE: To evaluate the effect of ultrasonic coagulator for thyroidectomy. METHODS: randomized controlled trials were searched in PubMed, EMBASE, Cochrane Library, SCI, Chinese Biomedical Database, China Academic Journals Full-Text Database, Chinese Scientific Journals Database, and China Online Journals. The authors evaluated the quality of included studies by Handbook 5.0.0, and analyzed data by Cochrane Collaboration's RevMan 5.0. RESULTS: A total of 11 RCTs with 1420 patients met the criteria. Between ultrasonic coagulator and conventional technique, there were significant differences in operative time of total thyroidectomy (P < .00001) and amount of intraoperative bleeding (P = .02). There were no significant differences in operative time of part thyroidectomy (P = .07), amount of postoperative drainage (P = .18), cases of transient hypocalcemia (P = .41), cases of transient recurrent nerve paresis (P = .21), and total cost in hospital (P = .08). CONCLUSIONS: Current studies demonstrate that ultrasonic coagulator has a significant reduction on the operating time of total thyroidectomy and the amount of intraoperative bleeding in thyroidectomy, without increasing complications and total cost in hospital.

[Seroepidemical study of Coxsackievirus A 16, in four provinces, China, 2005].

OBJECTIVE: To study the situation of 1- 5-years-old children's antibody against Coxsackievirus A group 16 strain (CVA16) in Guangdong, Heilongjiang,Yunnan Province and Xinjiang Uygur Autonomous Regions, China, 2005, it can offer scientific evidences for preventing and controlling CVA16 causative hand-food and mouth disease. METHODS: Using microneutrilization test, to study 503 serum samples randomly selected from sera collected in 2005. RESULTS: Positive rate of anti-CVA16 antibody were 41.90%, 9.40%, 40.00% and 34.40% in Guangdong, Heilongjiang,Yunnan and Xinjiang, respectively. Antibody titer was relative low (average, 1: 6.1) and there was no statistical difference of geometry mean of antibody titer (GMT) among Guangdong, Heilongjiang, Yunnan (F = 0.97, 0.40, 1.06, respectively; P > 0.05), while there had statistical difference of GMT between Heilongjiang and other three regions( F = 10.61, P < 0.00). CONCLUSIONS: There had probably existed local epidemic in some regions of Guangdong, Heilongjiang, Yunnan Province and Xinjiang Uygur Autonomous Regions, China, 2005 or even before, but the area and degree of transmission and epidemic had difference. Children aged from 1- 5-years-old were relatively susceptible population of CVA16 infection.

[Coxsackievirus A group 16 strain].

Coxsackievirus A group 16 strain (CVA16) is one of the predominate causative agent of the hand, foot and mouth disease (HFHD). It is very helpful to improve the hand, foot and mouth disease and other associated diseases control and prevention by understanding its biological characteristics, pathogenic mechanism and clinical manifestations, laboratory diagnoses, epidemiology and molecular epidemiology. In the future, we should continue to emphasize the study, improve the diagnostic method and develop vaccine of CVA16. A sound monitoring network of both epidemiology and laboratory will be estabished as well, which can contribute to predicting and prewarning the epidemic conditions of CVA16, and is much important scientific tools for preventing the hand, foot and mouth disease associated with CVA16.