Knee osteoarthritis (KOA) is one of the common degenerative joint diseases, which is more common in the middle-aged and elderly population. It shows significant gender differences, with a significantly higher incidence rate in women than in men, seriously affecting the quality of life of patients. However, there are few research reports on the correlation between gender differences and the incidence of KOA both domestically and internationally. Therefore, this article will summarize and analyze the potential causes of gender differences related to the incidence of KOA from five aspects: hormone levels, anatomical biomechanical characteristics, genes, obesity, and exercise-muscle factors. Through a comprehensive review of research progress, the aim is to provide a theoretical basis for gender based personalized treatment of KOA in clinical practice.
【摘要】 目的 探讨影响近视患者中央角膜曲率(Kmean)及球镜屈光度的因素。方法 2008年3月—8月，使用角膜地形图测量157例(313眼)近视患者Kmean和角膜后表面高度。用A超测量眼轴长度和中央角膜厚度,验光测出球镜屈光度。分析可能影响Kmean及球镜屈光度的多个因素。其中男79例(157眼),女78例(156眼)；年龄18~45岁,中位年龄20岁。近视病程1～30年。近视球镜屈光度(-5.65±2.74)D。结果 眼轴长度、中央角膜厚度、角膜后表面高度、眼压、Kmean和球镜屈光度分别为:(26.00±1.04)mm、(540.50±31.02)μm、(26.96±6.05)μm、(17.05±2.48)mm Hg(1 mm Hg=0.133 kPa)、(43.30±1.46)D、(-5.65±2.27)D。Kmean的影响因素有:眼轴长度(βi=-0.411,P=0.000)、性别(βi=-0.278,P=0.000)、中央角膜厚度(βi=-0.180,P=0.000)[(Kmean(D)=63.9790.599×眼轴长度(mm)-0.813×性别(男=1,女=0)-0.009×中央角膜厚度(μm),R=0.583,F=25.804,P=0.000)]。球镜屈光度的影响因素有:眼轴长度(βi=-0.911,P=0.000)、Kmean(βi=-0.477,P=0.000)和性别(βi=0.183,P=0.000)[球镜屈光度(D)=76.585-1.990×眼轴长度(mm)-0.714×Kmean(D)+0.801×性别(男=1,女=0),R=0.837,F=117.295,P=0.000)]。结论 眼轴长度、中央角膜厚度和性别都对Kmean有影响,眼轴增长是近视的主要原因。
目的 探讨中老年人群血清尿酸水平与代谢综合征（MS）及其各组分的关系。 方法 采用横断面研究，对2007年49～80岁成都成华区711例人群进行调查，并测量身高、体重、血压、空腹血糖、三酰甘油、高密度脂蛋白、低密度脂蛋白、血清尿酸等指标，采用SPSS 16.0软件分析尿酸与MS及MS各组分之间的关系。 结果 在中老年人群中，MS的发生率为25.60%，高尿酸血症的发生率为21.24%。女性MS、腹型肥胖、高三酰甘油血症和低高密度脂蛋白胆固醇血症的发生率均明显高于男性。尿酸与腰围、收缩压、三酰甘油、舒张压、高密度脂蛋白水平的相关系数分别为0.311、0.140、0.118、0.106和?0.147，均有统计学意义（P＜0.05）。男、女性尿酸与腰围的相关系数分别为0.173和?0.321，均有统计学意义（P＜0.05）。男、女性尿酸与空腹血糖的相关系数分别为?0.049和0.183，均有统计学意义（P＜0.05）。 结论 血清尿酸水平与MS及其各组分关系密切，血清尿酸水平和MS及其各组分间的关系存在性别差异。
ObjectiveTo analyze the glycated hemoglobin A1c (HbA1c) level among healthy adults in Quanzhou area and explore distribution of HbA1c concentration by age and gender, and establish relevant reference range. MethodsUnder the standardized test of HbA1c, HbA1c concentrations of 1 931 healthy adults were determined by HLC-723 G8 HbA1c analyzer (TOSOH corp, Japan) and its agents. HbA1c levels of different age (18-30, 31-40, 41-50, 51-60, >60) and gender groups were compared, percentile was adopted to establish the corresponding HbA1c reference range of healthy adults in Quanzhou area according to "WS/T402-12-2012. Define and Determine the Reference Interval in Clinical Laboratory" and CLSI C28-A3. ResultsThe total HbA1c levels among healthy adults in Quanzhou area were 3.8%-6.4% (5.31%±0.40%), and the total HbA1c levels among male and female healthy adults in Quanzhou area were 5.55%±0.36% and 5.47%±0.43%, respectively, HbA1c concentration between different gender were statistically significant (P≤0.01). Compared in HbA1c levels of different age (18-30, 31-40, 41-50, 51-60, >60) and gender groups: the difference of HbA1c concentration between different gender in 18-30 years and 31-40 years group was statistically significant (P<0.05) and on the contrary the remaining three age groups were no statistically significant. Compared in HbA1c levels of different age groups in male: the difference of HbA1c concentration between different age groups in 31-40 years and 41-50 years group were no statistically significant (P>0.05), but statistically significant (P<0.05) in the remaining three age groups. The difference of HbA1c concentration between different age groups in female were statistically significant (all P values ≤0.01). The reference intervals of HbA1c for males and females were 4.8%-6.2% and 4.6%-6.3%, respectively, with statistically significant (P=0.000); the reference intervals of HbA1c according to age and gender were: for 18-30 years in males and females were 4.6%-6.0% and 4.4%-6.0%, respectively, with statistically significant (P≤0.01); for 31-40 years in males and females were 4.7%-6.0% and 4.7%-6.2%, respectively, with statistically significant (P≤0.01); for 41-50 years, 51-60 years, >60 years in males and females were no statistically significant (P>0.05), the reference intervals were 4.8%-6.2%, 4.8%-6.4%, and 5.1%-6.4%, respectively. Compared in HbA1c reference intervals in this paper with ADA and Chinese Clinical Operating Program, the difference were statistically significant (P=0.000). ConclusionUnder the standardized test of HbA1c, HbA1c concentrations of age and gender groups of 1 931 healthy adults in Quanzhou area are partial different, the reference interval of HbA1c of age and gender groups for healthy adults in Quanzhou area are established.
【摘要】 目的 探讨男性和女性糖尿病肾病患者危险因素之间的差异。方法 收集2004年1月—2008年12月以糖尿病肾病为诊断的住院患者1 300例,根据入院日期以系统的方法随机纳入650例患者,排除20例尿常规正常和血肌酐值正常的患者,共630例,其中男342例,女288例,平均年龄65岁。288例女性患者中有271例为绝经后妇女,平均年龄48岁。比较女性和男性糖尿病肾病患者危险因素的差别。结果 ①绝经后糖尿病肾病患者占女性患者的94.1%；②女性糖尿病肾病患者组收缩压、脉压及糖化血红蛋白水平高于男性糖尿病肾病患者组,两者有统计学意义(Plt;0.05)；③两组患者在发病年龄,病程,糖尿病家族史,空腹血糖水平,低密度脂蛋白,高密度脂蛋白,血肌酐,24 h尿蛋白定量、是否使用血管紧张素转换酶抑制剂,血管紧张素受体拮抗剂,胰岛素,是否透析,死亡率均无统计学意义(Pgt;0.05)。结论 在女性糖尿病肾病患者中绝经后妇女所占比例较高,女性糖尿病肾病患者收缩压、脉压及糖化血红蛋白水平均高于男性糖尿病肾病患者,雌激素的水平可能导致差异的产生。
ObjectiveTo investigate the effects of gender and age on the posterior cranial fossa linear volume and cerebellar tonsil position in normal populations.MethodsA total of 180 normal adults who underwent cervical MRI examination at the physical examination center were selected, including 90 males and 90 females; the age ranged from 20 to 79 years, with an average of 50.4 years. The posterior cranial fossa linear volume and cerebellar tonsil position were measured by two spine surgeons on the mid-sagittal plane of the cervical MRI T2-weighted image. The posterior cranial fossa linear volume included the length of clivus (AB), anteroposterior diameter of foramen magnum (BC), length of supraocciput (CD), anteroposterior diameter of posterior fossa (DA), posterior fossa height (BE), and clivus angle (∠α). The index of the cerebellar tonsil position was the distance from the lower edge of the cerebellar tonsil to the baseline (MN). The differences of each indicators between males and females were compared, and the correlations between age and each indicators were analyzed.ResultsThe posterior fossa cranial linear volume AB, BC, CD, BE, and ∠α in males were significantly larger than those in females (P<0.05); DA in males was larger than that in females, but showing no significant difference (t=1.978, P=0.050). The cerebellar tonsil position (MN) in females was higher than that in males, but showing no significant difference (t=0.526, P=0.600). Correlation analysis showed that age was negatively correlated with AB, BC, CD, DA, BE, ∠α, and MN (r=−0.375, P=0.001; r=−0.417, P=0.001; r=−0.046, P=0.001; r=−0.244, P=0.001; r=−0.326, P=0.001; r=−0.320, P=0.001; r=−0.334, P=0.001).ConclusionThe posterior cranial fossa linear volume of normal adults is significantly larger in males than in females; the posterior cranial fossa linear volume and the cerebellar tonsil position may have a decreasing process of age-related degeneration.
Objective To explore the impact of gender difference in 90-day outcomes after mechanical thrombectomy for acute cerebral infarction. Methods A prospective registration, observational, and retrospective analysis study was carried out. Patients with acute cerebral infarction who were admitted to the Department of Neurology of the First Affiliated Hospital of Chengdu Medical College and the Department of Neurology of Nanjing First Hospital between June 2015 and June 2019 were collected. Patients were divided into two groups based on gender. The detailed demographic, laboratory examination, imaging examination and clinical data were collected. Then, the data were analyzed using univariate and multivariate logistic regression analyses. Results A total of 298 patients were included. Among them, there were 185 males and 113 females. The differences in age, smoking, atrial fibrillation, using antiplatelet drugs before stroke, TOAST classification, and involved cerebrovascular sites between the two groups were statistically significant (P<0.05), and there was no statistically significant difference in other baseline data between the two groups (P>0.05). The results of univariate logistic regression analysis showed that the rate of 90-day favourable outcome of female patients was lower than that of male patients [odds ratio (OR)=0.462, 95% confidence interval (CI) (0.275, 0.775), P=0.030]. The results of multivariate logistic regression analysis showed that, after adjusting for confounding factors, there was no independent correlation between gender and the 90-day favourable outcome of patients with acute cerebral infarction who underwent mechanical thrombectomy [OR=1.511, 95% CI (0.745, 3.066), P=0.253]. Conclusion The gender has no significant effect on the 90-day favourable outcome of acute cerebral infarction patients treated with mechanical thrombectomy.
Objective To compare neovascular age-related macular degeneration (nAMD) and polypoidal choroidal vasculopathy (PCV) in age at diagnosis, gender and disease laterality. Methods One hundred fourteen nAMD patients (114 eyes) and 145 PCV patients (186 eyes) diagnosed by fundus fluorescein angiography (FFA) and indocyanine green angiography were enrolled in this retrospective study. The age at diagnosis, gender and disease laterality of all the patients were collected. Independent sample t-test, chi;2 test and Fisher's exact test were used to compare the age at diagnosis, gender and disease laterality between nAMD and PCV patients. Results The mean age at diagnosis of nAMD group and PCV group were (68.30plusmn;9.86), (65.67plusmn;9.04) years respectively, the difference was statistically significant (t=-2.168, P=0.031). The patients under 70 years old accounts for 50.88% in nAMD group, which is lower than that in PCV group (63.45%), the difference was statistically significant (chi;2 =4.138, P=0.042). The male/female ratio of nAMD group and PCV group were 3.56∶1 and 2.02∶1 respectively, the difference was statistically significant (chi;2 =3.937, P=0.047). Thirty patients (26.32%) and 41 patients (49.46%) were affected unilaterally in nAMD and PCV group, respectively. The difference of bilateral incidence between two groups was not statistically significant (chi;2 =0.123, P=0.726). There were 69 right eyes (47.92%) and 75 left eyes (52.08%) in nAMD group, 92 right eyes (49.46%) and 94 left eyes (50.54%) in PCV group. The difference of disease laterality between two groups was not statistically significant (chi;2 =0.078，P=0.637). Conclusions PCV patients present at younger age than nAMD. nAMD is more prone to affected males than PCV. Nearly a quarter patients are bilateral in nAMD or PCV, there is no difference in bilateral incidence between these two diseases.
Objective To assess the evolving disease burden of esophageal and gastric cancers in China from 1990 to 2021, with a focus on gender disparities, and construct a predictive model to forecast disease trends from 2022 to 2031, aiming to optimize targeted prevention strategies. MethodsEpidemiological data for esophageal and gastric cancers in China (1990-2021) were extracted from the Global Burden of Disease (GBD 2021) database. Temporal trends were analyzed using Joinpoint regression (version 4.9.1.0), and future trends were predicted via the GM (1,1) model under grey system theory. ResultsFrom 1990 to 2021, tobacco- and alcohol-attributable burdens of esophageal cancer increased, while tobacco- and diet-related burdens of gastric cancer declined. Deaths and disability-adjusted life years (DALY) for esophageal cancer rose by 26.38% and 17.89%, respectively; gastric cancer deaths increased by 18.95%, though DALY decreased by 1.22%. Both cancers exhibited significant declines in age-standardized mortality rates (−45.78% for esophageal cancer, −53.29% for gastric cancer) and age-standardized DALY rates (−51.36% for esophageal cancer, −57.58% for gastric cancer). Despite these reductions, China’s age-standardized mortality and DALY rates for both cancers remained consistently higher than global averages, with slower decline rates. Males exhibited disproportionately higher burdens than females. Predictive modeling projected continued but decelerating declines in disease burdens for both cancers by 2031. ConclusionOver three decades, China achieved measurable reductions in esophageal and gastric cancer burdens, though gastric cancer burdens remained higher than esophageal cancer. Persistent disparities relative to global levels, elevated male burdens, and aging demographics highlight the urgency for prioritized interventions targeting high-risk populations.
ObjectiveTo compared weight loss and metabolic improvement effects of laparoscopic sleeve gastrectomy (LSG) in treatment of obese males and females. MethodsAccording to the inclusion and exclusion criteria, the obese patients were retrospectively collected, who underwent LSG from January 2020 to June 2021 in the Affiliated Hospital of Xuzhou Medical University, and there were complete preoperative data and postoperative follow-up data at month 1, 3, 6, and 12. The weight loss and metabolic improvement effects of obese males and females were compared, as well as the remissions of diabetes and hyperlipidemia at the 12th month after surgery were observed. ResultsA total of 129 eligible obese patients were included, including 44 obese males and 85 obese females. The preoperative body mass index (BMI), fasting blood glucose (FBG) level, and insulin level of the obese males were higher than those of the obese females (P<0.05). ① Weight loss effect after LSG: For both obese males and females, the change value (Δ) of BMI (all change values of the indexes were the difference between preoperative and postoperative value in this study), the percentage of excess body weight loss (EWL%), and percentage of total body weight loss showed continuous upward trends within the observation time range (P<0.05). And it was found that the obese males’ ΔBMI was higher than that of the obese females at the 1st and 3rd month after surgery (P<0.05), and the EWL% of the obese males was lower than that of the obese females at the 3rd, 6th, and 12th month after operation (P<0.05). ② Metabolic improvement effect after LSG: Blood glucose and lipid metabolism indicators in both male and female patients（ΔFBG, ΔINS, ΔHbA1c, ΔTC and ΔTG) changed the fastest at 1 month after operation, and the change became flat after 3 months, except for males ΔTC index (P>0.05), the overall difference between male and female patients at each time point after operation was statistically significant (P<0.05). After operation, the ΔFBG (at the 1st, 3rd, 6th, and 12th month) and Δinsulin (at the 3rd, 6th, and 12th month) in the obese males were higher than those in the obese females (P<0.05). The remission rates of diabetes and hyperlipidemia in the obese males and females at the 12th month after surgery were both higher, but there was no significant difference between the two groups [64.7% (11/17) versus 81.0% (17/21), χ2=0.578, P=0.447; 73.9% (17/23) versus 84.4% (27/32), χ2=0.378, P=0.539]. ConclusionsFrom the results of this study, LSG is an effective method in treatment of obesity and its complications for both males and females. Bariatric surgery should be suggested to perform as soon as possible for obese males with poor metabolic status.