目的 分析影响广州青少年自杀行为的因素。方法 选取100例自杀行为青少年为观察组,选100例健康青少年为对照组,对比两组青少年家庭结构、家庭教育方式、自身人格特征等指标。多因素Logistic回归分析其自杀行为危险因素。结果 观察组青少年抑郁量表、焦虑量表、攻击性人格及冲动性人格量表分值均高于对照组高;单亲家庭或父母常年在外、家庭教育方式不当、学校无健康心理教育课、抑郁或焦虑、冲动或攻击性人格、负面事件、消极应对是青少年自杀行为独立危险因素,P均＜0.05。结论 家长及学校应正确引导青少年处事方式,积极面对生活,打消自杀意念。

Objective To analyze the factors influencing the suicide behavior of adolescents in Guangzhou. Methods The 100 cases of adolescent suicide behavior were selected as the observation group, 100 healthy adolescents were selected as control group, compared with two groups of adolescent family structure, family education, personality traits and other indicators. Multivariate logistic regression analysis of risk factors was taken for suicidal behavior. Results In the observation group adolescent depression scale, anxiety scale, attack impulse personality and personality amount scores were higher than those in the control group, single parent family or parents staying outside, improper family education, school health psychological education, depression or anxiety, impulsivity, or aggressive personality, negative events, negative coping were independent risk factors for adolescent suicide, P<0.05. Conclusion Parents and schools should have guide to adolescents, toface life positively, and give up thought of suicide.

目的 了解广州市海珠区在校学生结核病核心知识知晓率现状、对结核病态度及相关行为,为进一步加强学校结核病健康教育工作提供依据。方法 采用分层整群随机抽样的方法随机选取海珠区内6所学校268名学生进行问卷调查,采用描述性分析、卡方检验。结果 学生结核病知识总知晓率为76.4%,女生结核病知识知晓率比男生高,高中生比大学生和初中生高,市内学生比市外学生知晓率高;户籍是市内的学生更愿意去了解结核病,女生比男生高,市内比市外的学生更加愿意成为志愿者;对于出现结核病疑似症状,大学生更为主动地寻求医生帮助,女学生在自己得了肺结核后会更加主动提醒周围人去检查。结论 学生对结核病的总知晓率仍偏低,以后的结核病健康教育应进一步针对学生的不同特征采取更合适的方式进行宣传,提高学生对结核病的知晓率,促使其形成正确的态度和行为。

Objective To understand the status of the awareness rate of tuberculosis knowledge,attitude and behavior among students in Haizhu district, Guangzhou, and to provide evidence for further strengthening the work of tuberculosis health education in schools. Methods Applying stratified random sampling method to choose 268 students from 6 schools for questionnaire investigation and used descriptive statistical analysis method, Chi-square test to assess related indicators. Results The awareness rate of TB knowledge was 76.4%, female students' was higher than male students', high school students' was the highest, Guangzhou household registers was higher than that no householder in Guangzhou; the students of householder in Guangzhou were more willing to learn about TB, female students' and the students of householder in Guangzhou were more willing to become a volunteer; College students were more active to seek medical help, female students after they had pulmonary tuberculosis would more active to remind the people around to have a check. Conclusion The level of knowledge about tuberculosis among students in the district was still lower than the standard. The health education of tuberculosis knowledge should further make publicity according to the different features of the students, to improve the students the awareness of TB and to promote the formation of correct confidence and behavior

目的 对2010—2014年广州市越秀区食物中毒事件的流行病学特征进行分析,探讨引起食物中毒的危险因素并对其进行分析,为制定预防措施提供依据。方法 收集广州市越秀区五年内发生的13起食物中毒事件的资料,使用构成比、频数等对事件进行分析,按发生时间、致病因素、就餐场所等因素进行分析。结果 2010—2014年广州市越秀区共发生食物中毒13起,发病65例,住院7例,平均每起发病5例,罹患率8.17%,没有死亡病例。第四季为食物中毒高发季节,共5起(占38.46%)。微生物污染是主要致病因素,共11起(占84.62%),以副溶血性弧菌和金黄葡萄球菌为主。餐饮服务单位是食物中毒发生的主要场所,7起(占53.85%)。结论 针对广州市越秀区食物中毒高发季节、主要致病因素和发生场所等特点,应加强对餐饮业加工环节监督管理,加强餐饮从业人员的卫生知识培训,以减少食物中毒的发生。

目的 了解广州地区儿童患者分离的社区获得性耐甲氧西林金黄色葡萄球菌(CA-MRSA)临床分离株的分子特征。方法 收集2009年—2014年我院分离获得的65株CA-MRSA临床分离株,PCR法检测杀白细胞素(PVL)基因阳性菌株,多位点基因序列类型(MLST)测定MRSA菌株的序列类型,多重PCR法对MRSA菌株进行葡萄球菌mec盒式染色体(SCCmec)分型。结果 65株CA-MRSA分离株中PVL基因阳性31株,阳性率47.69%;MLST分型表明以ST5933.84%(22/65)及ST8823.07%(15/65)为主;SCCmec分型中发现3种类型,分别为SCCmecⅡ 32.30%(21/65)、SCCmecⅣ 49.23%(32/65)及SCCmecⅤ 18.46%(12/65),未存在未能分型菌株。结论 广州地区儿童患者分离的CA-MRSA临床分离株的PVL基因阳性率相对较高,SCCmecIV型、V型可形成小范围内的流行,其基因表型存在多种ST分型。

Objective To investigate the molecular characteristic of Community-acquired Methicillin-resistant Staphylococcus aureus(CA-MRSA) isolates from pediatric patients in Guangzhou. Methods 65 non-duplicate strains of Community-acquired Methicillin-susceptible Staphylococcus aureus(CA-MSSA) isolated from our hospital in 2009-2014 were investigated. Panton-valentine leukocidin(PVL) gene was detected by polymerase chain reaction(PCR). The sequence type (ST) of each strain was determined by muhilocus sequence typing (MLST). The genotypes of staphylococcal cassette chromosome mec(SCCmec) of the CA-MRSA isolates were confirmed by multiplex PCR. Results Among 65 isolates of CA-MRSA, the positive rate of PVL genes was 47.69%(31／65). The most common MLST type was ST59 (n=22, 33.84%), followed by ST88 (n=15, 23.07%). Three SCCmec types were found. The most common type was SCCmecIV (49.23%, 32/65), followed by SCCmecⅡ (32.30%, 21/65) and SCCmecV (8.46%, 12/65). Conclusion The PVL gene-positive rate of CA-MRSA isolates in our hospitals is at a relatively high level. SCCmec type IV and SCCmec type V could spread among hospitals and cause a small scale epidemic. Their phenotypes have a variety of ST types.

目的 分析过敏性疾病儿童过敏原的种类和特点。方法 采用国产欧博克试剂盒(酶联免疫法)对174例过敏性疾病患儿进行食物及吸入性过敏原特异性IgE(SIgE)检测,比较≤3岁和＞3岁两组患儿SIgE阳性率。结果 过敏性疾病患儿SIgE检测阳性率达72.99%(127/174),排名前2位的是:屋尘螨/粉尘螨(39.66%,69/174)、屋尘(26.44%,46/174)。≤3岁组食物性过敏原阳性率33.93%(19/56),吸入性过敏原阳性率44.64%(25/56),＞3岁组食物性过敏原阳性率41.53%(49/118),吸入性过敏原阳性率61.02%(72/118);127例阳性病例中, 96例对≥2种过敏原呈阳性反应, 69例SIgE等级≥3,＞3岁组混合过敏率及高度过敏率高于≤3岁组。结论 广州地区过敏性疾病儿童以吸入性过敏为主,主要过敏原是屋尘螨/粉尘螨、屋尘,随着年龄增长,吸入性过敏原阳性率升高,混合过敏的机率增加。建议对过敏疾病患儿进行过敏原检测,以制定相应环境干预措施及特异性脱敏治疗方案。

Objective To inverstigate the types and characteristics of allergen in children in different age with allergic diseases. Methods The food and inhalant allergen-specifi IgE(SIgE) were detected by the domestic specific IgE Screening ELISA kit in 174 children with allergic diseases,and were compared among children aged ≤3 and ＞3 years. Results 72.99%(127/174) of children with allergic diseases were positive for SIgE,the common allergen were dermatophagoides pteronyssinus/dermatophagoides farina and dust. In the group of ≤3 years old,the positives rate of food allergens was 33.93%(19/56),and the positives rate of aeroallergens was 44.65%(25/56).In the group of >3 years old, the positives rate of food allergens was 41.53%(49/118), the positives rate of aeroallergens was 61.02%(72/118).96 of 127(75.59%) positive cases yielded positive result to more than 2 allergens.69 patients's SIgE levels greater were ≥ 3,the mixed allergic rate and highly allergic rate of the children aged ＞3 years were higher than the children aged ≤3 years. Conclusion The children with allergic diseases in Guangzhou area were allergic mainly to inhalant allergens,especially to dermatophagoides pteronyssinus/dermatophagoides farina and dust.Aeroallergens are becoming the allergens as children grow with ages, and probability of mixture allergy is increasing.

目的 统计医院眼科门诊病人前15位疾病的构成变化及不同年龄段间差异。方法 对2008年—2011年眼科门诊病人诊断及治疗信息作横断面研究,分析逐年门诊量变化及疾病谱的变化。结果 4年来门诊共接诊患者22356人次,初诊病人20915例。4年初诊患者分别为1476、3795、7177、8467人次。其中男12088例(59.9%),女8087例(40.1%),平均年龄 33.75岁。未成年人占20.23%,中青年占72.33%,老人占7.44%。前15位的疾病构成4年间有一定的波动,但结膜炎、角膜异物及屈光不正所占比例较高。三个年龄组构成最高的疾病分别为屈光不正、结膜炎、白内障。结论 该院眼科门诊4年来就诊人数增加5倍有余。患者中青年、未成年患者比例高、老年患者比例低,男性比例高于女性。角膜异物等外伤性疾病较多,不同年龄段疾病谱各有特点。

Objective Describe the distribution of diagnoses at the ophthalmic clinic of a tertiary hospital in the first four years since its inception. And also analyse the patterns of diagnoses of different age. Methods Cross-sectional study was administered on all new patients seen by ophthalmologists at Nansha Central Hospital from 2008 to 2011. Results 59.90% (12088 cases) were male and 40.10% (8087 cases) were female. Juveniles, adults and the elders accounts for 20.33%, 72.33%, and 7.44% of all visitors respectively. The most common conditions were conjunctivitis (27.00%), refractive error (9.87%) and corneal foreign bodies (9.07%). There were more diagnoses of refractive error (32.26%, P<0.01) among the juveniles, while the elders had higher percentage of cataract diagnoses (27.81%, P<0.01). Conclusion The number of new patients visiting the ophthalmic clinic had increased six-fold over the four years. The proportion of younger patients was much higher than that of older ones and the male to female ratio was high.compared to the results of literature, the marked characteristic of the disease distribution was the high rate of ocular traumatic diseases. The most common diagnoses varied with age.

       目的   分析广州市中医优势病种按病种分值付费政策实施效果，以期为完善广州市中医病种付费方式改革提供参考思路。方法   以广州市某三甲中医医院住院患者在政策实施前（n=6 057）及实施后（n=7 208）住院病历为研究样本，对医院次均住院医疗费用、中医综合治疗费占比、平均住院日进行两独立样本非参数检验等描述性统计分析。结果  政策实施后，住院人次增长19%，患者次均住院医疗费用下降7.02%（P＜0.001），中医综合治疗费用占比提升0.8%（P＞0.05），医疗机构平均住院日缩短0.63 d（P＜0.001），入组中医优势病种患者自费率较非入组的低，医疗机构总体病例组合指数下降，中医优势病种结算有盈余。结论  中医优势病种按病种分值付费政策有利于医保-患者-医院三方共赢；但中医优势病种入组率有待提高，建议加大对中医医疗机构的支持与助力；中医综合治疗费用占比提升不显著，建议完善中医治疗项目医疗服务价格动态调整机制；中医优势病种仅局限在住院，建议实现诊疗单元全覆盖。

       Objective  To discuss the correlation analysis of the hospitalization expenses of TCM dominant diseases under the DIP payment mode，and provide a reference for further promoting the reform of the payment mode of TCM dominant diseases in Guangzhou．Methods  The nonparametric test was used to analyze the number of inpatients，the average hospitalization cost，and the proportion of TCM comprehensive treatment on the data of inpatient records before and after the implementation of the TCM dominant diseases policy，the sample sizes were 6 057 and 7 028 respectively．Results  After the implementation of the TCM dominant diseases policy，there was a slight fluctuation in the number of inpatients from 6 057 to 7 208，the average hospitalization cost was decreased by 7.02%（P＜0.001），the proportion of TCM comprehensive treatment costs had an increase of 0.8%（P＞0.05），the average length of hospital stay was shorten by 0.63 days（P＜0.001），the self-expense  rate of the patients with the TCM dominant diseases of in the group was lower than that of the patients without the group，the total case mix index value of the hospital decreased，but there was a surplus on the group of TCM dominant diseases settlement．Conclusios  The policy is conducive to the tripartite win-win of medical insurance，patients and hospitals．However，the enrollment rate of TCM dominant diseases need to be improved，which is suggested to increase the support for TCM hospitals．The proportion of TCM comprehensive treatment has not increased significantly，so it is suggested to improve the dynamic adjustment mechanism of medical service price of TCM treatment items．The TCM dominant diseases are only limited to hospitalization，and it is recommended to achieve full coverage of diagnosis and treatment units．

       目的   对医疗损害责任纠纷案的法庭审理进行分析，探究医疗损害责任纠纷案件的处理现状，对此过程中医疗机构应当关注的问题进行分析总结，以期为医院应对医疗损害鉴定工作和法官审理医疗损害责任纠纷案提供参考。方法   对广州市三所综合医院2015—2021年共93例医疗损害责任纠纷案的判决书进行描述性分析。结果  93例案例中79例进行了医疗损害鉴定。79例进行医疗损害鉴定的案例中，71例鉴定结论被法院采信，采信率达90%。有29例案件鉴定人出庭（占比36.7%），其中有25例鉴定意见被法院采信，采信率为86.2%，仅有7例案例当事人申请了专家辅助证人出庭。医方大多数最终承担次要及以下责任占比为73.4%。鉴定结论为责任范围的，法院最后判决偏向于取最高值和中间值（43例出具责任范围的案例中，14例为最高值，13例为中间值）。结论   医疗机构要充分加强对医疗事故技术鉴定和医疗损害鉴定的认识，高度重视医疗损害鉴定工作，尤其加强尸体解剖告知及病历书写管理，充分利用好鉴定人和专家辅助证人出庭两种手段。

      Objective  To analyze the court trial of medical damage liability disputes，to explore the current situation of medical damage liability disputes，to analyze and summarize the problems encountered in dealing with medical damage disputes，so as to provide some references for hospitals to deal with medical damage disputes．Methods  Descriptive statistical analysis performed on the written judgment of 93 cases of medical damage liability disputes in three large comprehensive hospitals in Yuexiu District，Guangzhou from 2015 to 2021．Results  In 93 cases，79 cases had expertise of medical malpractice．In 79 expertise，71 of them were adopted，and the acceptance rate was 90%．Among the 29 cases in which the appraisers appeared in court，25 expert opinions were accepted by the court，the acceptance rate was 86.2%．In only 7 cases，the parties applied for expert witnesses to appear in court．In most cases，hospitals ultimately took secondary and lower responsibilities，accounting for 73.4%．If the appraisal conclusion falls within the scope of responsibility，the court’s final judgment tends to take the highest and middle values．Conclusions  Medical institutions should fully strengthen their understanding of technical identification of medical accidents and medical malpractice identification．Attach great importance to the identification of medical malpractice，especially strengthen the management of autopsy notification and medical record writing，make full use of two methods：appraisers and experts witnesses appearing in court．

       目的   探讨眼底豹纹斑密度（FTD）及视盘旁萎缩弧（PPA）与眼轴长（AL）的相关性，为眼底定量化在儿童近视防控的应用提供科学依据。方法   本研究随机抽取广州市荔湾区两所小学三年级学生作为研究对象，在校园视力筛查的过程中同时采集AL、CR和眼底彩照。使用AI软件对眼底彩照进行量化分析，量化指标包括不同区域和范围的FTD及PPA面积大小，根据眼轴长度分为三组：A组（AL＜23 mm）；B组（23 mm≤AL＜24 mm）；C组（24 mm≤AL）。结果   共有398例右眼被纳入统计分析，年龄范围8~11岁，中位数是9岁，男性人数占55.1％。三组组间AL、AL/CR和SE比较均有统计学差异（P＜0.05）。A组与B组相比，FTD在后极部整体范围、黄斑中心3 mm区域、黄斑中心3 mm区域上方区域具有统计学差异（P＜0.05），C组与B组相比，PPA面积及FTD在后极部整体范围、视盘为中心4.5 mm范围、黄斑为中心直径3 mm和6 mm范围均具有统计学差异（P＜0.05），Spearman相关性分析表明，AL与PPA（r=0.443）和FTD（r=0.322）呈正相关（P＜0.001）。亚组相关性分析表明，A组仅黄斑为中心直径3 mm上方范围FTD与AL呈正相关（P=0.028），B组PPA、黄斑中心直径3 mm及其上方范围FTD与AL呈正相关（P＜0.05），C组仅PPA与AL呈正相关（P=0.005）。结论 眼底定量对于儿童近视防控具有潜在价值，PPA和FTD与AL呈正相关性，不同区域和范围FTD与AL相关性具有一定差异性，黄斑中心直径3 mm范围及其上方范围与眼轴相关性最强。FTD在短眼轴阶段就可以作为生物标记物预测近视严重程度，而PPA主要在长眼轴阶段体现生物标记物的作用。

       Objective  To investigate the correlation between fundus tessellated density（FTD）and peripapillary atrophy（PPA）with axial length（AL）, providing a scientific basis for the application of fundus quantification in the prevention and control of myopia in children. Methods  This study randomly selected third-grade students from two primary schools in Liwan District, Guangzhou City, as research subjects. Axial length（AL）, corneal radius（CR）, and fundus color photographs were collected simultaneously during the school vision screening process. AI software was utilized to perform quantitative analysis on the fundus color photographs, with quantification indicators including the area size of PPA and FTD in different regions and ranges. Subjects were divided into three groups based on axial length：Group A（AL＜23 mm）; Group B（23 mm≤AL＜24 mm）; Group C（AL≥24 mm）. Results  A total of 398 right eyes were included in the statistical analysis, with an age range of 8 to 11, a median age of 9, and 55.1% were male. There were significant statistical differences in AL, AL/CR, and spherical equivalent（SE）among the three groups（P＜0.05）. Compared with Group B, Group A showed significant statistical differences in FTD in the overall posterior pole, the 3 mm diameter area centered on the fovea, and the superior area of the 3 mm foveal center（P＜0.05）. Compared with Group B, Group C showed significant differences in PPA area and FTD in the overall posterior pole, the 4.5 mm diameter area centered on the optic disc, and the 3 mm and 6 mm diameter areas centered on the fovea（P＜0.05）. Spearman correlation analysis indicated that AL was significantly positively correlated with PPA（r=0.443）and FTD（r=0.322）（P＜0.001）. Subgroup correlation analysis showed that in Group A, only the FTD in the superior area of the 3 mm diameter centered on the fovea was significantly positively correlated with AL（P=0.028）. In Group B, PPA and FTD in the 3 mm diameter and superior area centered on the fovea were significantly positively correlated with AL（P＜0.05）. In Group C, only PPA was significantly positively correlated with AL（P=0.005）. Conclusions  Fundus quantification holds potential value for the prevention and control of myopia in children. PPA and FTD show significant positive correlations with AL, with varying degrees of correlation in different regions and ranges of FTD with AL. The 3 mm diameter area centered on the fovea and its superior area have the strongest correlation with the eye axis. FTD can serve as a biomarker to predict the severity of myopia in the early stages of eye axis elongation, while PPA primarily manifests as a biomarker in the later stages of elongation.