【In Press】 The Beijing Desheng Diabetic Eye Study: rationale, design, methodology and baseline data

AIM: To present the rationale, design, methodology, and the baseline data of the Beijing Desheng Diabetic Eye Study (BDDES), and to determine the prevalence of diabetic retinopathy (DR) and possible risk factors in patients with type 2 diabetes mellitus (T2DM) in an urban community of Beijing, China. METHODS: A community-based prospective cohort study of persons diagnosed with T2DM aged 30y or older. The main variables of interest are the presence and progression of DR as determined by the standardized ETDRS grading of seven fields fundus photographs. The presence and severity of DR were analyzed for possible correlations to non-genetic and genetic dispositions. RESULTS: Of a total of 1438 participants with data available for analysis, the prevalence of any DR was 35.4%. The prevalence of mild non-proliferative diabetic retinopathy (NPDR), moderate NPDR, severe NPDR, and proliferative diabetic retinopathy was 27.7%, 2.6%, 0.5% and 4.5%, respectively. By multiple logistic regression analysis, risk factors for the presence of any DR included male (P=0.031), lower income level (P=0.011), lower education background (P=0.022), longer duration of diabetes (P=0.001), younger age at diabetic onset (P=0.001), higher systolic blood pressure (P=0.007), higher glycosylated hemoglobin A1c levels (P=0.001), high albuminuria (P=0.03), and use of insulin (P<0.001). For vision-threatening DR, four factors were significant: younger age at diabetic onset (P<0.001), higher systolic blood pressure (P=0.042), high albuminuria (P<0.001), and use of insulin (P<0.001). CONCLUSION: The BDDES is the first large-scale ongoing cohort study of a Chinese urban population of persons with type 2 diabetes. Using standardized grading system comparable to large cohort studies from western populations, our baseline data shows that the prevalence of DR and major risk factors in this Chinese ethnic population are comparable to that found in the western population studies.     

Rationale and Methodology for a Community-Based Study of Diabetic Retinopathy in an Indonesian Population with Type 2 Diabetes Mellitus: The Jogjakarta Eye Diabetic Study in the Community

Purpose: There are no available data about diabetic retinopathy (DR) in the Indonesian population. This report summarizes the rationale and study design of the Jogjakarta Eye Diabetic Study in the Community (JOGED.COM), a community-based study to estimate the prevalence and risk factors of DR in persons with type 2 diabetes in Jogjakarta, Indonesia.

Methods: The JOGED.COM aimed to examine a cross-sectional sample of 1200 persons with type 2 diabetes aged 30 years and older residing in the study area. We identified 121 community health centers (CHCs) in Jogjakarta and listed 35 CHCs with non-communicable diseases facilities. Multi-stage, clustered random sampling was used to select 22 CHCs randomly. We included CHCs with coverage population >30,000, and excluded those classified as 100% rural. Lists of persons with diabetes confirmed by their family physician were provided from each CHC. Examinations procedures included detailed interviews, general and eye examinations, anthropometry and body composition scan, and dilated fundus photography.

Results: We collaborated with local health authorities, family physicians, and local health practitioners in the recruitment phase. A total of 1435 invitations were distributed, and 1184 people (82.5%) with type 2 diabetes participated in this study, of whom 1138 (79.3%) had completed data with gradable retinal images.

Conclusions: JOGED.COM is the first epidemiologic study of DR in an Indonesian population. This study will provide key information about the prevalence and risk factors of DR in the community. These data are very important for future health promotion programs to reduce the burden of DR in the population.     

2型糖尿病患者糖尿病视网膜病变相关危险因素分析

目的：探讨2型糖尿病( type 2 diabetic mellitus,T2DM)患者糖尿病视网膜病变(diabetic retinopathy,DR)相关危险因素。

方法：回顾性分析2013-01/2017-04收治入院的1 013例T2DM患者病例资料,将DR患者纳入观察组,非DR患者纳入对照组。分析T2DM患者DR相关危险因素。

结果：经调查统计DR发生率为27.74%(281/1 013)。经单因素分析,两组患者性别、年龄、T2DM病程、血压、糖化血红蛋白、高密度脂蛋白胆固醇、肌酐以及24h尿蛋白比较,差异有统计学意义(P<0.05)。经多因素Logistic回归分析,男性、年龄>60岁、T2DM病程>10a以及血压、糖化血红蛋白、高密度脂蛋白胆固醇以及肌酐和24h尿蛋白表达异常均是T2DM患者并发DR的危险因素(P<0.05)。

结论：T2DM患者并发DR风险较高,男性、年龄>60岁、T2DM病程>10a以及血压、糖化血红蛋白、高密度脂蛋白胆固醇以及肌酐和24h尿蛋白的高水平表达均可能是诱发DR的危险因素。     

Population-Based Study of Nonproliferative Diabetic Retinopathy Among Type 2 Diabetic Patients in Kinmen, Taiwan

Purpose

This study was conducted to assess the prevalence and associated factors of nonproliferative diabetic retinopathy among type 2 diabetic patients in Kinmen, Taiwan.

Methods

From 1991 to 1993, 971 type 2 diabetic patients in Kinmen underwent diabetic retinopathy screening performed by a panel of ophthalmologists using indirect ophthalmoscopy and 45° color fundus retinal photographs.

Results

Of the 971 patients screened in 1991–1993, 578 (59.5%) were examined for this study. Diabetic retinopathy was diagnosed in 127 patients (22.0%), including nonproliferative diabetic retinopathy in 13.3%, proliferative diabetic retinopathy in 1.4%, legal blindness in 1.4%, and ungradable diabetic retinopathy in 5.9%. Significant associated factors of nonproliferative diabetic retinopathy based on multiple logistic regression analysis were fasting plasma glucose (FPG) at baseline [≥126?mg/dl vs. <126?mg/dl; odds ratio (OR) = 2.89; 95% confidence interval (CI), 1.01–9.09], 2-h postload at baseline (≥200 vs. <200?mg/dl; OR = 1.48; 95% CI, 1.09–2.07); HbA_1c at follow-up (≥7% vs. <7%; OR = 6.54; 95% CI, 3.01–14.20), duration of diabetes (≥15 years vs. <10 years; OR = 6.72; 95% CI, 2.13–21.18), and incremental systolic blood pressure between baseline and follow-up (OR = 1.02; 95% CI, 1.00–1.04).

Conclusions

In addition to the longer duration of type 2 diabetes, FPG at baseline, poorly controlled glucose concentration, and altered blood pressure may increase the risk of nonproliferative diabetic retinopathy in type 2 diabetic patients. Jpn J Ophthalmol 2006;50:44–52 © Japanese Ophthalmological Society 2006     

Epidemiological characteristics and risk factors of diabetic retinopathy in type 2 diabetes mellitus in Shandong Peninsula of China

AIM: To determine the epidemiological characteristics and estimate the risk factors of diabetic retinopathy (DR) in patients with type 2 diabetes mellitus (T2DM) in Shandong Peninsula of China. METHODS: The cases of T2DM admitted to Affiliated Hospital of Medical College of Qingdao University, Shandong Province, China, from January 2006 to December 2010 were retrospectively reviewed. The epidemiological characteristics of DR were estimated. The cases were divided into two groups according to degrees of retinopathy: non-DR group and DR group. Logistic regression analysis was used to study the related risk factors of DR. RESULTS: The prevalence of DR in patients with T2DM was 25.08% (834/3326). There was significant difference between the average age for men (59.08±15.43 years) and for women (62.92±18.19 years,P=0.0021). The majority of DR occurred in women (female: male ratio=1.76:1,P<0.0001). The incidence rate of DR in urban (489/834) was higher than that in rural area (345/834, P<0.0001). In 834 DR patients, the mean duration of T2DM was 8.90±4.15 years (range: 0-16 years); 440 people (52.76%) had received varying degrees of health education about prevention and primary care of DM; and 473 people (56.71%) suffered from other DM complications confirmed at the same time. In addition, the incidence rate of monocular (551/3326) and binocular retinopathy (283/3326) were statistically different (P<0.0001). Factors associated (P<0.05) with the presence of DR included old age, lower health educational level, intraocular surgery history, longer duration of T2DM, accompanying with other DM complications, no standard treatment procedure, lower body mass index (BMI) and higher fasting plasma glucose (FPG), glycated hemoglobin A1C (HbA1C), urine albumin (UA), total cholesterol (TC), low-density-lipoprotein cholesterol (LDL-C). The risk factors (P<0.05) independently associated with the presence of DR were: longer duration of T2DM, lower health educational level, higher FPG, higher UA, lower BMI and higher TC. CONCLUSION: DR is highly prevalent in the patients with T2DM in Shandong Peninsula of China. Besides blood glucose, many factors are associated with the present and development of DR.     

Ural Eye and Medical Study: description of study design and methodology

Purpose: Since there is a scarcity on population-based health information available for Russia, we conducted this project to assess the prevalence of major ocular and systemic disorders and their associated risk factors.

Methods: A population-based cross-sectional study (Ural Eye and Medical Study (UEMS)) was performed in Bashkortostan 1300 km east of Moscow. The sampling frame consisted of all inhabitants aged over 40 years and living in an urban study area in the capital city Ufa and a rural region at 65 km outside of Ufa. The target sample size was 2500 individuals for the urban region and 2500 persons for the rural region. The study participants underwent a detailed interview, a detailed ophthalmologic examination including biometry and optical coherence tomography, and clinical examination including assessment of electrocardiography, hearing test, blood sampling, spirometry, and hand grip dynamometry.

Results: After a first study period, the study population included 4254 individuals with a mean age of 60.3 ± 11.1 years (range: 40–94 years), mean body weight of 74.8 ± 14.4 kg (range: 31–170 kg), body height of 163.6 ± 8.9 cm (range: 112–196), body mass index of 28.0 ± 5.1 kg/m² (range: 13.96–60.96 kg/m²), mean systolic blood pressure of 133.7 ± 21.0 mmHg (range: 84–232 mmHg), and mean diastolic blood pressure of 81.2 ± 10.6 mmHg (range: 40–134 mmHg). Mean refractive error was ?0.21 ± 1.94 D and mean intraocular pressure was 13.6 ± 3.9 mmHg.

Conclusions: The UEMS provides population-based normative data for a Russian region on the quantitative traits such as axial length, quality of life and lifestyle including smoking and alcohol consumption, and prevalence and risk factors of ocular and systemic diseases such as diabetes mellitus, arterial hypertension, chronic obstructive pulmonary disease, and depression.     

Risk Factors for Proliferative Diabetic Retinopathy in African Americans with Type 2 Diabetes

Purpose: To assess personal and demographic risk factors for proliferative diabetic retinopathy in African Americans with type 2 diabetes.

Methods: In this prospective, non-interventional, cross-sectional case-control study, 380 African Americans with type 2 diabetes were enrolled. Participants were recruited prospectively and had to have either: (1) absence of diabetic retinopathy after ≥10 years of type 2 diabetes, or (2) presence of proliferative diabetic retinopathy when enrolled. Dilated, 7-field fundus photographs were graded using the Early Treatment Diabetic Retinopathy Study scale. Covariates including hemoglobin A_1C (HbA_1C), blood pressure, height, weight and waist circumference were collected prospectively. Multivariate regression models adjusted for age, sex and site were constructed to assess associations between risk factors and proliferative diabetic retinopathy.

Results: Proliferative diabetic retinopathy was associated with longer duration of diabetes (odds ratio, OR, 1.62, p < 0.001), higher systolic blood pressure (OR 1.65, p < 0.001) and insulin use (OR 6.65, p < 0.001) in the multivariate regression analysis. HbA_1C was associated with proliferative diabetic retinopathy in the univariate analysis (OR 1.31, p = 0.002) but was no longer significant in the multivariate analysis.

Conclusions: In this case-control study of African Americans with type 2 diabetes, duration of diabetes, systolic hypertension and insulin use were strong risk factors for the development of proliferative diabetic retinopathy. Interestingly, HbA_1C did not confer additional risk in this cohort.     

Assessing the Natural Course of Diabetic Retinopathy: A Population-Based Study in Kinmen,Taiwan

Purpose: To explore the natural course of diabetic retinopathy among type 2 diabetics using the indirect ophthalmoscope and single-field fundus photographs in Kinmen, Taiwan. Methods: A screening program for diabetic retinopathy was carried out by a panel of ophthalmologists, who employed the ophthalmoscope and 45-degree retinal color photographs to examine the fundus after pupil dilation. Screening, which was conducted between 1999 and 2002, involved 971 patients diagnosed with type 2 diabetes. A multi-state Markov model was used to assess the natural course of diabetic retinopathy among type 2 diabetics. Results: Among the 725 diabetes patients who attended at least two ophthalmological fundus check-ups and were screened, the overall response rate was about 75%. The mean duration of the disease states mild nonproliferative diabetic retinopathy, moderate nonproliferative diabetic retinopathy, severe nonproliferative diabetic retinopathy, and proliferative diabetic retinopathy were 4.05 [95% confidence interval (CI): 3.28–5.32], 4.18 (95% CI: 3.18–6.06), 2.52 (95% CI: 1.78–4.27), and 4.22 (95% CI: 2.88–7.81) years, respectively. Compared to controls, the incidence of blindness reduction for annual, biennial, 3-year, 4-year, and 5-year screenings of diabetic retinopathy were approximately 94.4% (95% CI: 91.6%–96.3%), 83.9% (95% CI: 83.6%–84.2%), 70.2% (95% CI: 69.8%–70.7%), 57.2% (95% CI: 56.7%–57.7%), and 45.6% (95% CI: 45.0%–46.1%), respectively. Conclusions: In conclusion, the average time for the development of diabetic retinopathy from nonexistence to blindness was approximately 26.5 years. The present recommendation for annual screening in type 2 diabetics with nonproliferative diabetic retinopathy should be retained only for the mild form, not for the moderate or severe forms.     

The Wisconsin Epidemiologic Study of Diabetic Retinopathy: IV. Diabetic Macular Edema

The prevalence of macular edema and its relationship to a number of risk factors were examined in a population-based study in southern Wisconsin. Macular edema was determined from its presence on stereoscopic fundus photographs or from past history as recorded and documented in clinic records and photographs. For participants whose age at diagnosis of diabetes was less than 30 years and who were taking insulin (n = 919), prevalence rates of macular edema varied from 0% in those who had diabetes less than 5 years to 29% in those whose duration of diabetes was 20 or more years. In these persons, macular edema was associated with longer duration of diabetes, presence of proteinuria, diuretic use, male gender and higher glycosylated hemoglobin. For those whose age at diagnosis was 30 years or older (n = 1121), prevalence rates of macular edema varied from 3% in those who had diabetes less than 5 years to 28% in those whose duration of diabetes was 20 or more years. In these persons, presence of macular edema was associated with longer duration of diabetes, higher systolic blood pressure, insulin use, higher glycosylated hemoglobin, and presence of proteinuria.     

2型糖尿病视网膜病变危险因素分析

目的:探讨2型糖尿病视网膜病变(diabetic retinopathy,DR)进程的有关危险因素。方法:对125例2型糖尿病视网膜病变患者的眼底表现、病程、血压、糖化血红蛋白(HbA1c)、血脂、C肽、尿微量白蛋白、吸烟、打鼾及腰/臀比等进行分析。结果:糖尿病视网膜病变严重程度与病程、糖化血红蛋白(HbA1c)、血脂、尿微量白蛋白、吸烟、打鼾及腰/臀比呈正相关。结论:病程长、糖代谢和脂代谢紊乱、吸烟及打鼾是2型糖尿病视网膜病变的危险因素。尿微量白蛋白含量可以间接反映糖尿病视网膜病变病情程度。     

Risk factors for diabetic retinopathy in northern Chinese patients with type 2 diabetes mellitus

AIM: To investigate the prevalence and risk factors of diabetic retinopathy (DR) in northern Chinese patients with type 2 diabetes mellitus (T2DM). METHODS: This retrospective cross-sectional study was performed between May 2011 and April 2012. A total of 1100 patients (male/female, 483/617) were included in this study. DR was defined following the Early Treatment Diabetic Retinopathy Study (ETDRS) severity scale. All included patients accepted a comprehensive ophthalmic examination including retinal photographs. Logistic regression models were used to estimate odds ratios (ORs) and 95% confidence interval (CI) after adjusting for age and gender. RESULTS: Retinopathy was present in 307 patients with a prevalence of 27.9%. In univariate logistic analysis, presence of DR was associated with longer duration of diabetes (OR, 5.70; 95%CI, 2.91-12.56), higher concentration of fasting blood glucose (OR, 12.94; 95%CI, 2.40-67.71), higher level of glycosylated hemoglobin HbA1c (OR, 5.50; 95%CI, 3.78-11.97) and insulin treatment (OR, 6.99; 95%CI, 1.39-35.12). The lifestyle of patients with T2DM including smoking, alcohol consumption and regular exercise seemed not associated with the development of DR. CONCLUSION: Our study suggests that fasting serum glucose concentration, HbA1c level, duration of diabetes and insulin treatment are potential risk factors for DR in northern Chinese patients with T2DM, while the lifestyle of included patients seems not associated with DR.     

1型糖尿病患者视网膜病变的危险因素分析

目的：探讨1型糖尿病(T1DM)患者视网膜病变(DR)的危险因素。

方法：回顾性研究。选取2010-01/2020-10在南方医科大学附属南海医院就诊的204例T1DM患者,根据眼底表现将患者分为DR组(71例)和无DR组(133例),其中DR组包括非增殖期糖尿病视网膜病变(NPDR)组(48例)和增殖期糖尿病视网膜病变(PDR)组(23例)。采集其临床资料并检测相关生化指标。通过单因素分析DR/PDR的相关因素,采用多因素Logistic回归分析DR/PDR的危险因素并绘制受试者工作特征曲线(ROC)。

结果：T1DM患者的发病年龄、病程、糖化血红蛋白(HbA1c),合并高血压、高脂血症、糖尿病肾病(DN)、糖尿病周围神经病变(DPN)与DR有关(P<0.05)。病程、体质量指数(BMI)、收缩压(SBP),合并高脂血症、DN、DPN与PDR有关。Logistic回归分析结果显示病程(OR=1.130,P<0.001)和HbA1c(OR=2.734,P<0.001)是发生DR的危险因素; 病程(OR=1.144,P=0.005)和合并DN(OR=6.500,P=0.001)是发生PDR的危险因素。ROC曲线分析结果显示,病程和HbA1c预测DR发生的曲线下面积(AUC)分别为0.720、0.727,截断值分别为15.1a,8.2%,敏感性分别为50.7%、76.1%,特异性分别为86.5%、59.4%。病程预测PDR发生的AUC为0.713,截断值为18.5a,敏感性为73.9%,特异性为60.4%。

结论：T1DM患者视网膜病变与糖尿病发病年龄较晚有关。糖尿病病程和高血糖是DR的主要影响因素。HbA1c与DR的发生相关,DN与PDR的发生相关。     

Risk factors for diabetic retinopathy in a rural Chinese population with type 2 diabetes: the Handan Eye Study

Purpose: To describe risk factors associated with diabetic retinopathy (DR) in a population‐based sample of rural Chinese with type 2 diabetes. Methods: The Handan Eye Study is a population‐based cross‐sectional study surveyed 6830 Chinese people aged 30+ years from 13 randomly selected villages in 2006–2007. All participants underwent a standardized interview and extensive examinations including ophthalmologic and systemic conditions. Diabetic retinopathy was graded from fundus photographs according to the modified Early Treatment Diabetic Retinopathy Study classification system. Logistic regression models were used to assess risk factors associated with DR. Results: Of 7577 eligible persons, 6830 (90.4%) participated, of which 5597 (81.9%) had fasting plasma glucose (FPG) data. There were 387 (6.9%) participants with diabetes, and 368 (95.1%) had gradable fundus photographs. The age‐standardized prevalence of DR was 43.1%. In multivariable‐adjusted logistic regression models for all diabetic participants, independent risk factors for DR were longer duration of diabetes (odds ratio [OR] 3.07, 95% confidence interval [CI] 1.94, 4.85, per 5 years of duration), higher FPG levels (OR 1.17; 95% CI: 1.08, 1.27, per mmol/l increase) and higher systolic blood pressure (OR 1.22; 95% CI: 1.08, 1.37, per 10 mmHg increase). For newly diagnosed diabetes, the only significant factor of DR was higher FPG levels (OR 1.17; 95% CI: 1.05, 1.29, per mmol/l increase). Conclusions: In rural Chinese persons with diabetes, longer diabetes duration, hyperglycaemia and elevated blood pressure are risk factors for DR. These findings underscore the importance of controlling classic risk factors for DR in developing countries, where diabetes prevalence is increasing.     

社区糖尿病视网膜病变流行病学1.5a随访结果

目的：调查沈阳市风雨坛社区2型糖尿病(type 2 diabetes mellitus, T2DM)人群中糖尿病视网膜病变(diabetic retinopathy, DR)患病率及相关危险因素。

方法：2011年筛查社区T2DM患者457例,2013年复查其中的92例,并新增312例T2DM患者,调查其基本情况及生活方式,并进行糖尿病视网膜病变筛查,运用Logistic多元回归分析相关危险因素。

结果：风雨坛社区2011年和2013年DR患病率分别为15.8%和41.2%。DR与NDR组比较,年龄、DM家族史、DM病程、空腹和餐后2h血糖、糖化血红蛋白(HbA1c)、总胆固醇(TC)、血清肌酐(Scr)、收缩压(SBP)及高、低密度脂蛋白胆固醇(HDL-C、LDL-C)差异有统计学意义(P<0.05)。Logistic回归分析表明：年龄、DM病程、HbA1c、SBP及HDL-C是DR的独立危险因素。2013年参与复查的92例DM患者,DR进展和新发共31例(33.7%),主要与血糖控制不良有关。

结论：风雨坛社区居民DR患病率远高于我国北方的其他研究,主要与患者DM病程长、血糖控制不良、对DM及其眼病的重视程度不够以及高血压、高血脂等全身疾病的共同作用相关。     

2型糖尿病住院患者糖尿病视网膜病变的相关危险因素分析

目的:探讨2型糖尿病视网膜病变(DR)的发病危险因素。方法:选择2014-01/06收治的2型糖尿病患者380例,分为DR组126例和对照组即糖尿病无视网膜病变(NDR)组254例,进行询问病史、体格检查、实验室检查和相关辅助检查,采用Logistic回归分析法对DR的相关危险因素进行单因素及多因素分析。结果:单因素Logistic回归分析结果表明,病程、收缩压、甘油三酯、总胆固醇、低密度脂蛋白、尿蛋白、眼压、颈动脉内中膜厚度、周围神经病变是DR发生的相关危险因素。对以上因素进行多因素Logistic回归分析,只发现病程是DR发生的相关危险因素。结论:DR的发生是多因素共同作用的结果,病程是DR发生的独立危险因素。     

不同程度糖尿病视网膜病变患者血浆炎性因子检测

目的研究不同程度糖尿病视网膜病变(DR)患者血浆肿瘤坏死因子-α(TNF-α)、白细胞介素-6(IL-6)、白细胞介素-8(IL-8)、可溶性白介素-2受体(IL-2R)及C反应蛋白(CRP)水平,为探究炎性反应在DR发病机制中的作用提供依据。设计前瞻性比较性病例系列。研究对象2型糖尿病但无DR患者21例(DM无DR组),非增生性DR患者17例(NPDR组),增生性DR患者23例(PDR组),无糖尿病患者23例作为对照组(无DM组)。方法记录患者年龄、性别、病史资料。行视力、眼压、裂隙灯及眼底检查。采集静脉血检测糖化血红蛋白(HbA1c)、空腹血糖(Glu)、总胆固醇(TC)、低密度脂蛋白胆固醇(LDL)、高密度脂蛋白胆固醇(HDL)、甘油三酯(TG)、同型半胱氨酸(Hcy)、肌酐(CR),以及炎症相关指标TNF-α、IL-2R、IL-8 IL-6及CRP的水平。主要指标血浆炎性因子浓度。结果四组之间年龄、性别、既往高血压、冠心病及脑梗塞病史、TC、LDL、HDL、TG、Hcy和血浆CR均无显著统计学差异。HbA1c在PDR组(7.51±2.03)%、NPDR组(7.48±1.49)%、DM无DR组(7.09±1.54)%,均显著高于无DM对照组(5.35±0.54)%(P<0.001)。TNF-α水平在PDR组及NPDR组(42.54±31.80及32.07±28.84 pg/ml)显著高于无DM组(10.30±5.35 pg/ml)及DM无DR组(12.63±6.65 pg/ml)(P<0.001)。IL-8水平在PDR组及NPDR组(157.26±200.16及197.45±331.08 pg/ml)显著高于无DM组(30.23±29.41 pg/ml)及DM无DR组(29.70±22.04 pg/ml)(P=0.006)。四组之间IL-2R、IL-6及CRP浓度均无显著统计学差异。结论NPDR及PDR患者血浆炎性因子TNF-α及IL-8显著高于DM无DR及无DM对照者。血浆TNF-α升高为PDR的重要危险因素。血浆炎性因子与肌酐水平显著正相关,全身高炎症状态可能是糖尿病肾病及DR的共同危险因素。     

Risk factors associated with retinal neovasculari-zation of diabetic retinopathy in type 2 diabetes mellitus

AIM: To evaluate the risk factors associated with retinal neovascularization of diabetic retinopathy in northern Chinese Han patients with type 2 diabetes mellitus (T2DM). METHODS: The clinical characteristics of 200 patients with proliferative diabetic retinopathy (PDR) and 100 age-matched healthy individuals were compared. The univariate and multivariate logistic regression analysis were performed in the patients with PDR. RESULTS: Fasting blood glucose (FBG), triglyceride (TG), total cholesterol (TC), blood urea nitrogen (BUN), uric acid (UA), white blood cell count (WBC), absolute neutrophil count, hematocrit (HCT) and mean platelet volume (MPV) and mean platelet volume (MPV) were all significantly higher in patients with PDR than in the control group (P<0.05). The univariate and multivariate logistic regression analysis showed that risk factors independently associated with retinal neovascularization of DR were duration of diabetes mellitus (OR=1.112; P =0.000), BUN (OR=1.277; P=0.000), smoking (OR=3.967; P=0.000) and MPV(OR=2.472; P=0.000). On the other hand, panretinal photocoagulation was associated with reduced risk of retinal neovascularization (OR=0.983; P=0.000). CONCLUSION: Preventing and controlling T2DM in terms of risk factors, including duration of diabetes, BUN, smoking and MPV, might offer novel approaches to prevent or delay the onset of retinal neovascularization in patients with PDR.     

社区2型糖尿病视网膜病变的相关危险因素分析

目的:分析2型糖尿病患者糖尿病视网膜病变(diabetic retinopthy,DR)相关危险因素。方法:2型糖尿病患者300例,根据有无DR及病变程度分为3组:正常视网膜(NDR)组、非增殖型视网膜病变(NPDR)组和增殖型视网膜病变(PDR)组进行临床分析。结果:和NDR组比较,NPDR、PDR组病程、收缩压(SBP)、舒张压(DBP)、空腹血糖(FPG)、2h血糖(2hPG)、糖化血红蛋白(HbA1c)、24h尿蛋白排泄量显著升高,差异有统计学意义(P<0.05)。Logistic回归分析表明:病程和SBP是DR发生的独立危险因素。结论:病程、收缩压(SBP)、舒张压(DBP)、空腹血糖(FPG)、2h血糖(2hPG)、糖化血红蛋白(HbA1c)、24h尿蛋白排泄量等因素与DR的发生有关,其中糖尿病病程及SBP是DR的独立危险因素。     

合肥地区2型糖尿病患者尿微量白蛋白肌酐比值与DR的关系

目的：研究合肥地区2型糖尿病患者尿微量白蛋白肌酐比值(UACR)与糖尿病视网膜病变(DR)的关系。

方法：回顾性病例分析。选取2018-11/2019-09于我院治疗的2型糖尿病患者281例,根据眼底摄片结果将患者分为DR组和非DR(NDR)组,采集患者性别、年龄、糖尿病病程、高血压史、体质量指数(BMI)、UACR、空腹血糖、糖化血红蛋白、总胆红素、总胆固醇、甘油三酯、血尿素等资料,分析DR发生的危险因素。

结果：本研究纳入患者中,检出NDR患者169例(60.1%),DR患者112例(39.9%)。Logistic回归分析及受试者工作特征曲线(ROC曲线)分析结果显示,DR发生相关危险因素为UACR(β=0.036,OR=1.037,95%CI 1.019～1.056,P<0.001),最佳临界值为10.15mg/g·Cr(AUC=0.717,P<0.001); 糖尿病病程(β=0.061, OR=1.063,95%CI 1.008～1.120,P=0.023),最佳临界值为10.5a(AUC=0.666,P<0.001)。

结论：UACR及糖尿病病程是合肥地区部分2型糖尿病患者DR发生的独立危险因素。