目的   探讨女性医务人员月经改变的影响因素及与心理状态的相关性。方法   对深圳市3家医院女性医护人员进行随机抽样得到869份问卷调查样本，均为知情自愿参与本项调查研究。统计女性医务人员出现女性月经改变的比率和月经改变的基本特征，并采用单因素和多因素分析的方法分析影响月经改变因素。并以抑郁症筛查量表（PHQ-9）评估女性医护人员的心理状态，分析女性医务人员月经改变与心理状态评分间相关性。结果  869名女性医护人员中有293例发生月经改变，改变率为33.72%，其中月经周期改变94例、经期时间改变86例、月经量改变68例、痛经改变45例。将869例女性医护人员分为月经正常组和月经改变组，经单因素分析，两组间的年龄、职业、值夜班频率、既往病史、新冠感染等比较差异无统计学意义（P＞0.05）。月经改变组的护士占58.36%高于月经正常的24.48%，月经改变组的新冠一线抗疫人员占64.51%高于月经正常的27.08%，月经改变组合并妇科疾病史的占比20.82%（61例）高于月经正常组的占比11.98%（69例）。而月经改变组的护士、新冠一线抗疫人员、合并妇科疾病史、新冠感染的比较差异有统计学意义（P＜0.05）。多因素分析显示，职业为护士、合并妇科疾病史、新冠一线抗疫人员的P值分别为0.001、0.004、＜0.001，故而职业为护士、合并妇科疾病史、新冠一线抗疫人员是女性医务人员月经改变的危险因素。月经改变组PHQ-9评分为9.10±2.57，月经正常组PHQ-9评分为5.98±1.06，月经改变组PHQ-9评分高于月经正常组（P＜0.001）。两组受试者PHQ-9评分比较差异具有统计学意义，月经改变组PHQ-9评分中0～4分受试者为26.3%，月经正常组为47.2%，月经改变组PHQ-9评分中0～4分者比例小于月经正常组，差异具有统计学意义（P＜0.05）。结论   女性医务人员中职业为护士、合并妇科疾病史、新冠一线抗疫人员是月经改变的主要危险因素，且月经改变与心理状态有密切的相关性，需引起医疗机构的关注。

      Objective  To analyze the influencing factors of menstruation changes of female medical staff and the correlation with their psychological status．Methods  The female medical staff in three hospitals of Shenzhen were  randomly sampled to get 869 questionnaires，with informed and willing to participate in this research．The rate of female menstruation changes and the basic characteristics of menstruation changes in female medical staff were calculated，and the influencing factors of menstruation changes were analyzed by single factor and multi factor analysis．And the psychological status of female medical staff was using the Depression Screening Scale （PHQ-9），and the correlation between menstrual changes and psychological status scores of female medical staff were analyzed．Results  Among 869 female medical staff，293 had hemorrhagic menstrual disease，with a change rate of 33.72%．Among them，94 had changes in menstrual cycle，86 had changes in menstrual period days，68 had changes in menstrual volume，and 45 had changes in dysmenorrhea．These 869 female medical staff were divided into normal menstruation group and menstrual change group．Through single factor analysis，there was no statistical difference between the two groups in terms of age，careers，night shift frequency，previous medical history，COVID-19 infection （P＞0.05）．The percentage of nurses in the menstrual change group was 58.36%，higher than that of 24.48% in the normal menstruation group．The percentage of frontline medical staff combating COVID-19 in the menstrual change group was 64.51%，higher than that of 27.08% in the normal menstruation group．And the percentage of menstrual change group with a history of combined gynecological diseases was 20.82% （61 cases），higher than that of the normal menstruation group was 11.98% （69 cases）．And the difference was statistically significant when comparing the ratio of nurses，the frontline medical staff combating COVID-19，the history of gynecological diseases，and COVID-19 infection in the menstrual change group （P＜0.05）．Multivariate analysis showed that the occupation of nurses，frontline medical staffs combating COVID-19，and history of gynecological diseases were the risk factors for menstrual changes．The PHQ-9  score of the menstrual change group was higher than that of the normal menstrual group，and the difference was statistically significant．Conclusions  The main risk factors for menstrual changes are nurses，frontline anti-epidemic staff，and women with gynecological disease history．Menstrual changes are closely related to mental status，attention from healthcare organizations．

      目的   探讨载脂蛋白E（ApoE）基因多态性与卒中后认知障碍的相关性，即大动脉粥样硬化型脑梗塞的严重程度。方法   采用病例——对照研究的方法，收集九江学院附属医院神经内科的100例急性缺血性脑卒中且病因分型为大动脉粥样硬化型患者（脑梗死组）和50例性别、年龄匹配的非缺血性脑卒中患者（对照组）。检测患者的 ApoE 基因型、血脂、美国国立卫生院卒中量表（NIHSS）、卒中后6个月简易智力状态检查量表（MMSE）等，采用多因素方差分析等统计学方法分析他们之间的关联性。结果  ApoE 3/4基因型频率与Ɛ3、Ɛ4等位基因频率，在脑梗死组别中高于对照组（P＜0.05）。同时，携带Ɛ3等位基因患者的低密度脂蛋白水平高于携带Ɛ2、Ɛ4等位基因的患者；进一步分析发现含Ɛ3等位基因的脑梗死患者NIHSS评分更高、卒中后认知障碍更严重（P＜0.05）。结论  ApoE基因型为Ɛ3/4、等位基因Ɛ3、Ɛ4更易罹患大动脉粥样硬化型脑梗死，提示该基因型是脑梗死的易感基因，脑梗死后认知障碍患者Ɛ3等位基因的频率较高，可能是卒中后认知障碍的易感因素。

       Objective  To  explore the  relationship  between ApoE  gene  polymorphisms  and  post-stroke  cognitive  impairment，the severity of large artery atherosclerotic cerebral infarction．Methods  A  case-control research  study was conducted，gathering  data from  100 individuals  diagnosed with large artery atherosclerotic cerebral infarction according to the TOAST classification，who admitted to the Neurology Department of the Affiliated Hospital of Jiujiang University．Additionally，50 non-ischemic stroke patients，matched for gender and age，were included as the control group．The patients were assessed for ApoE genotype，blood lipid，NIHSS，and MMSE scale at 6 months post-stroke，and statistical methods were used to analyze their associations.  Results  Significant differences were observed in the ApoE 3/4 genotype frequency and Ɛ3、Ɛ4 allele frequency between patients with cerebral infarction and the control group，with a notably higher incidence of cerebral infarction in the former．Furthermore，patients carrying the Ɛ3 allele exhibited significantly higher LDL levels than those carrying Ɛ2 or Ɛ4．The analysis also revealed that patients with the Ɛ4 allele experienced higher NIHSS and severer post-stroke cognitive impairment．Conclusions  The findings suggest that the ApoE genotype Ɛ3/4 and allele Ɛ3、Ɛ4 may predispose individuals to develop large atherosclerotic cerebral infarction，indicating a susceptibility gene for cerebral infarction．Additionally，the Ɛ3 allele was associated with a higher frequency of cognitive deficits after cerebral infarction，implying that it may be a predisposing factor for post-stroke cognitive impairment．

      目的 探讨老年营养风险指数（GNRI）与慢性阻塞性肺疾病者急性加重期患者预后的相关性。方法 选择贵州省六盘水水旷医院2019年1月—2022年1月收治的COPD急性加重期患者，根据GNRI值，分为正常营养组（GNRI＞98）和营养不良组（GNRI≤98），应用生存曲线和Cox比例风险回归评估营养状况与死亡率之间的关联。结果 共纳入198例COPD急性加重期患者，正常营养组90例，营养不良组108例，营养不良发生率为54.5%；Kaplan-Meier曲线表明，营养不良组的全因累积死亡率更高（58.3% vs 35.0%，P＜0.001）。Cox比例风险回归分析显示在未校正模型中，HR为2.31（1.25~4.28），P＜0.001。在完全校正模型中，HR为2.48（1.37~4.51），P=0.005，提示与正常营养状况相比，营养不良与全因死亡风险升高相关。结论  GNRI低是COPD患者急性加重期全因死亡的独立危险因素。

      Objective  To investigate the correlation between elderly nutritional risk index（GNRI）and prognosis of patients with AECOPD．Methods  Patients with AECOPD admitted to our hospital from January 2019 to January 2022 were selected and divided into normal nutrition group（GNRI＞98）and malnutrition group（GNRI≤98）according to GNRI value．Survival curve and Cox regression were used to evaluate the association between nutritional status and mortality．Results  A total of 198 patients with AECOPD were included in this study．According to GNRI scores，90 patients were in the normal nutrition group and 108 were in the malnutrition group，with malnutrition incidence of 54.5%．The Kaplan-Meier curve showed that the cumulative all-cause mortality was higher in the malnutrition group（58.3% vs 35%，P＜0.001）．Cox proportional hazard  regression analysis showed that HR in the uncorrected model was 2.31（1.25-4.28），P＜0.001．In the fully corrected model，HR was 2.4（1.37-4.51）and P=0.005，suggesting that malnutrition was associated with a significantly higher risk of all-cause mortalitycompared with normal nutritional status．Conclusions  Low GNRI is an independent risk factor for all-cause death in AECOPD patients．

      目的   分析高原地区3～6年级学生屈光状态及屈光参数之间的关系。方法  2023年9月，采用随机抽样方法选取林芝市波密县某两所小学3～6年级535名学生进行校园筛查。计算并记录裸眼远视力（UCVA），非睫状肌麻痹电脑验光下散光及其轴位、等效球镜（SE）、眼轴（AL）、角膜曲率半径（CR）和眼轴/角膜曲率半径轴率比（AL/CR）。采用SPSS 22.00统计软件分析数据。结果  3～6年级学生AL和AL/CR大体趋势为随年级升高而增长，SE随年级升高而降低。3～6年级学生总体筛查性近视患病率为29.91%，且3～6年级筛查性近视患病率分别为20.35%、25.53%、30.53%和51.38%。总体散光患病率为51.59%，其中顺规散光、逆规散光及斜轴散光分别占90.22%、7.61%及2.17%。视力不良者约40.37%。以非睫状肌麻痹验光SE≤-0.50 D同时UCVA＜5.0作为筛查性近视的诊断，AL/CR诊断筛查性近视的灵敏度为0.656、特异度为0.887和Youden指数为0.534，曲线下面积（AUC）为0.802，优于AL评估（AUC=0.764）。结论   高原地区3～6年级学生的筛查性近视患病率随年级升高而快速增长，且散光患病率较高，视力不良者较多。AL／CR值对筛查性近视监测具有一定的临床意义。

      Objective  To analyze the  relationship  between  refractive  status and  refractive  parameters of  students in grades three-six in plateau area．Methods  In September，2023，a random sampling method was used to select 535 students from grades three-six of two primary schools in Bomi County，Nyingchi City，for school screening．Distance uncorrected visual acuity（UCVA），astigmatism and its axis position，equivalent spherical（SE），axial length（AL），corneal radius（CR），and axial length/corneal radius ratio（AL/CR）were calculated and recorded．The data was analyzed using the statistical software SPSS 22.00．Results  The general trend of AL and AL/CR for grade three-six students was increased with grade increasing，while SE decreased with grade increasing．The overall prevalence of screening myopia was 29.91%，and the prevalence of screening myopia in grades three to six was 20.35%，25.53%，30.53% and 51.38%，respectively．The overall prevalence rate of astigmatism was 51.59%，including 90.22%，7.61% and 2.17% for astigmatism with the rule，astigmatism against the rule and oblique astigmatism，respectively．About 40.37% of the students had poor vision．Screening myopia was diagnosed using non-cycloplegic optometry with SE ≤-0.50 D combined with UCVA＜5.0．The sensitivity and specificity of AL/CR for screening myopia were 0.656 and 0.887，respectively，with a Youden index of 0.534 and an area under the curve（AUC）of 0.802．This was superior to the AL evaluation，which had an AUC of 0.764．Conclusions  The prevalence of screening myopia increased rapidly with the increase of grade in grade 3 to 6 in plateau area．And there were high prevalence of astigmatism and more poor vision．AL/CR value has a certain clinical significance in the monitoring of screening myopia．

       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.