Dataset Information

Prevalence and associated factors of diabetic retinopathy in Beijing, China: a cross-sectional study.

ABSTRACT:

Objectives

The study aimed to determine the exact risk factors for diabetic retinopathy (DR) in the Chinese population using a cohort of 17 ?985 individuals from Beijing, China.

Design

Cross-sectional study.

Setting

A hospital.

Participants

17 ?985 individuals from Beijing, China.

Primary and secondary outcome measures

This was a cross-sectional study of permanent residents from the Changping area (Beijing, China) recruited from July 2010 to March 2011 and from March 2014 to February 2015 during a routine health examination at the Tongren Hospital of Beijing. Eye examinations were conducted by experienced ophthalmologists. Medical history, height, weight, body mass index (BMI) and blood pressure were recorded. Routine laboratory examinations were performed.

Results

The prevalence of DR was 1.5% in the general study population and 8.1% among individuals with diabetes. Compared with the non-DR group, individuals in the DR group in the diabetes population had longer disease duration, higher systolic blood pressure (SBP), fasting plasma glucose (FPG) and uric acid (UA) (in men) and lower UA (in women) (all p<0.05). The multivariate analysis showed that disease duration (p<0.001), BMI (p=0.046), SBP (p=0.012), creatinine clearance rate (CCR) (p=0.014), UA (p=0.018) and FPG (p<0.001) were independently associated with DR in patients with diabetes.

Conclusion

The prevalence of DR was 8.1% among patients with diabetes. Disease duration, BMI, SBP, CCR, UA and FPG were independently associated with DR.

SUBMITTER: Cui J

PROVIDER: S-EPMC5724071 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature

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Publications

Prevalence and associated factors of diabetic retinopathy in Beijing, China: a cross-sectional study.

Cui Jing J Ren Ji-Ping JP Chen Dong-Ning DN Xin Zhong Z Yuan Ming-Xia MX Xu Jie J You Qi-Sheng QS Yang Jin-Kui JK

BMJ open 20170830 8

<h4>Objectives</h4>The study aimed to determine the exact risk factors for diabetic retinopathy (DR) in the Chinese population using a cohort of 17 985 individuals from Beijing, China.<h4>Design</h4>Cross-sectional study.<h4>Setting</h4>A hospital.<h4>Participants</h4>17 985 individuals from Beijing, China.<h4>Primary and secondary outcome measures</h4>This was a cross-sectional study of permanent residents from the Changping area (Beijing, China) recruited from July 2010 to March 2011 and fro ...[more]

PMID: 28855199

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Project description:BackgroundCurrently 93 million people are estimated as living with diabetic retinopathy worldwide. The prevalence and risk factors of diabetic retinopathy in developed countries have been well documented; but in Ethiopia, data on prevalence and associated factors of diabetic retinopathy is lacking.ObjectiveTo determine prevalence and factors associated with development of diabetic retinopathy among diabetic patients at Arbaminch General Hospital, Ethiopia.MethodCross-sectional study design with record review of 400 diabetic patients was conducted at Arbaminch General Hospital from November to January 2015. Among 400 diabetic patients, 270 patients with baseline information and without history of hypertension at baseline were included in this study. But patients with gestational diabetes and with retinopathy at baseline were excluded from the study. Consecutive sampling technique was applied to select study participants. Data of cohorts was extracted from medical record using pre tested structured extraction check list. Data cleaning, coding, categorizing, merging and analysis carried out by STATA version 12. Descriptive statistics was done and presented accordingly. Bivariate binary logistic regression analysis was done to select potential candidates for the full model at P-value cutoff point ≤ 0.25 and multivariable binary logistic regression analysis was made to estimate the independent effect of predictors on the occurrence of diabetic retinopathy. Model diagnostic tests were done, final model fitness was checked using Hosmer and Lemeshow chi square test. Finally, statistical significance was tested at P-value <0.05.ResultPrevalence of diabetic retinopathy among diabetic patients at Arbaminch General Hospital was 13%. Adjusted analysis showed that the odds of diabetic retinopathy were statistically and significantly associated with baseline age (AOR = 6.06: 95%CI; 2.42, 15.21), baseline systolic blood pressure level (AOR = 4.38: 95%CI; 1.64, 11.68), family history of diabetes (AOR = 0.22: 95%CI; 0.08, 0.58) and duration of diabetes (AOR = 8.84: 95%CI; 3.56, 12.89).Conclusion and recommendationIn the current study, prevalence of diabetic retinopathy was 13%. Since baseline age ≥60 years, baseline systolic blood pressure level >140 mmhg, duration of diabetes ≥6 years and patients with family history of diabetes were statistically and significantly related with diabetic retinopathy, special care should be given in addition to routine care.

Project description:Research questionThe current population-based study aimed to investigate the prevalence of diabetic retinopathy (DR) and risk factors among residents over 40 years old in the rural area of Dongguan, southern China.Study designThe Dongguan Eye Study was a population-based study from September 2011 to February 2012.SettingThe area was set in the rural area of Dongguan, southern China.ParticipantsAdult rural population aged 40 or older.InterventionParticipants underwent haematological, physical, ophthalmic examinations and completed a questionnaire regarding lifestyles and systemic medical conditions.Primary and secondary outcome measuresThe frequency and risk factors of visual impairment and the major vision-threatening eye diseases.ResultsOf the 8952 Han Chinese, 1500 were diagnosed with type 2 diabetes mellitus (T2DM) with an average age of 59.5±11.1 years, and 1310 participants with fundus photography results were analysed. Standardised prevalence rate of DR was 18.2% for all patients with diabetes, 32.8% for the patients with previously diagnosed diabetes and 12.6% for newly diagnosed patients with T2DM. The prevalence rate of male DR was significantly higher than that of female DR (23.0% vs 14.1%, p<0.001). No significant difference was found in age-specific prevalence of DR. In diabetic patients, the prevalence rates of vision-threatening diabetic retinopathy, diabetic macular oedema and clinically significant macular oedema were 2.5%, 2.8% and 0.9%, respectively. Male gender, higher education level, longer duration of diabetes mellitus (DM), higher systolic blood pressure and glycosylated haemoglobin were independent risk factors for DR development in patients with diabetes.ConclusionA relatively lower prevalence of DR was found among the participants with T2DM in residents over 40 years in the rural area of southern China. Thus, an ophthalmic examination is recommended, especially for individuals with DM and DR risk factors. There is a need to increase awareness and education on DM and DR, especially in subjects with DR risk factors to reduce the incidence of DR and macular oedema.

Project description:BackgroundDiabetic retinopathy is the most common microvascular complication of diabetes mellitus on eye and it is the leading cause of visual impairment among productive segment of the population. Globally, the prevalence of diabetic retinopathy is reported to be 27%. In Ethiopia, sufficient data is lacking on the prevalence of diabetic retinopathy as well as information on its predisposing factors. The study was required to assess the prevalence of diabetic retinopathy and its predisposing factors in diabetic patients attending at a General Hospital in Ethiopia.MethodsAn institution based cross sectional study was employed on 331 diabetic patients recruited with a systematic random sampling technique. Data were collected through structured questionnaire, tracing patients' medical folder and ocular health examination. Data were analyzed with Statistical Package for Social Science Version 20. Logistic regression methods of analysis were used to figure out predisposing factors of diabetic retinopathy. Adjusted odds ratio with 95% confidence interval was used to determine the strength of association.ResultA total of 331 diabetic patients completed the study with a response rate of 99.10%. The median duration of diabetes was 5 years. The prevalence of diabetic retinopathy was 34.1% (95%Confidence Interval (CI): 28.7%-39.3%). Low family monthly income (Adjusted Odds Ratio (AOR) = 7.43, 95% CI: 2.44-22.57), longer duration of diabetes (AOR = 1.44, 95% CI: 1.30-1.58), poor glycemic control (AOR = 4.76, 95%CI: 2.26-10.00), and being on insulin treatment alone (AOR = 3.85, 95%CI: 1.16-12.74) were independently associated with diabetic retinopathy.Conclusion and recommendationThe prevalence of diabetic retinopathy was 34.1%, higher than national and global figures. Low family monthly income, longer duration of diabetes, poor glucose control and being on insulin treatment alone were important risk factors of diabetic retinopathy. Proper diabetes self management and early screening of diabetic retinopathy in all diabetic patients were recommended.

Project description:BACKGROUND:To date, most previous studies of frailty among hospitalized elderly Chinese patients have been conducted based on small samples, which cannot represent the elderly patient population. The aim of this study was to identify the prevalence of and risk factors for frailty among elderly patients in China. STUDY DESIGN AND SETTING:This cross-sectional study surveyed 9996 elderly patients from 6 tertiary-level hospitals in China. The prevalence of frailty among patients from selected wards was surveyed by trained investigators. A mixed-effects Poisson regression model was used to analyse the factors associated with frailty among elderly patients. RESULTS:The mean age of all subjects was 72.47?±?5.77?years. The prevalence rate of frailty in this study was 18.02%. After adjustments were made for the confounding effect of the clustering of hospital wards, a mixed-effects Poisson regression model showed that the associated factors of frailty included the following: age (OR: 1.016, 95% CI: 1.012-1.020), BMI?<?18.5 (OR: 1.248, 95% CI: 1.171-1.330), female gender (OR: 1.058, 95% CI: 1.004-1.115), ethnic minority (OR: 1.152, 95% CI: 1.073-1.236), admission to hospital by the emergency department (OR: 1.104, 95% CI: 1.030-1.184), transit from another hospital (OR: 1.159, 95% CI: 1.049-1.279), former alcohol use (OR: 1.094, 95% CI: 1.022-1.171), fall history in the past 12?months (OR: 1.257, 95% CI: 1.194-1.323), vision dysfunction (OR: 1.144, 95% CI: 1.080-1.211), cognition impairment (OR: 1.182, 95% CI: 1.130-1.237), sleeping dysfunction (OR: 1.215, 95% CI: 1.215-1.318), urinary dysfunction (OR: 1.175, 95% CI: 1.104-1.251), and defecation dysfunction (OR: 1.286, 95% CI: 1.217-1.358). The results also showed some of the following protective effects: BMI?>?28 (OR: 0.897, 95% CI: 0.856-0.940); higher education level, including middle school (OR: 0.915, 95% CI: 0.857, 0.977) and diploma and above (OR: 0.891, 95% CI: 0.821, 0.966); and current alcohol use (OR: 0.869, 95% CI: 0.815, 0.927). CONCLUSION:We identified a relatively high prevalence of frailty among elderly patients, and there are several associated factors among the population derived from this investigation of a large-scale, multicentre, nationally representative Chinese elderly inpatient population. TRIAL REGISTRATION:Chinese Clinical Trial Registry, ChiCTR1800017682, registered 09 August 2018.

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Dataset Information

Prevalence and associated factors of diabetic retinopathy in Beijing, China: a cross-sectional study.

Objectives

Design

Setting

Participants

Primary and secondary outcome measures

Results

Conclusion

Publications

Prevalence and associated factors of diabetic retinopathy in Beijing, China: a cross-sectional study.

Similar Datasets

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