Xixi Yan1,2, Xiaotong Han2,3, Changfan Wu2,4, Xianwen Shang2, Lei Zhang2,5,6,7, Mingguang He2,3. 1. Eye Center, Renmin Hospital of Wuhan University, Eye Institute of Wuhan University, Wuhan, China. 2. Centre for Eye Research Australia, Ophthalmology, Department of Surgery, Royal Victorian Eye and Ear Hospital, University of Melbourne, Melbourne, Australia. 3. State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China. 4. Department of Ophthalmology, Yijishan Hospital of Wannan Medical College, Wuhu, China. 5. Melbourne Sexual Health Centre, Alfred Health, Melbourne, Australia. 6. Faculty of Medicine, Central Clinical School, Monash University, Melbourne, Australia. 7. Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China.
Abstract
OBJECTIVE: To examine the association of physical activities (PA) with diabetic retinopathy (DR) progression based on a 10-year follow-up of a large cohort of working-aged diabetic populations in Australia. METHODS: Nine thousand and eighteen working-aged diabetic patients were enrolled from the baseline of the 45 and Up Study from New South Wales, Australia. Self-reported PA collected by questionnaire at baseline in 2006 was graded into low (<5 sessions/week), medium (≥5-14), and high (≥14) levels. Retinal photocoagulation (RPC) treatment during the follow-up period was used as a surrogate for DR progression and was tracked through the Medicare Benefits Schedule, which was available from 2004 to 2016. Cox regression was used to estimate the association between PA and RPC incidence. RESULTS: In the fully adjusted model, higher PA level was significantly associated with a lower risk of RPC incident (Cox-regression, p-value for trend = 0.002; medium vs. low, hazard ratio (HR) = 0.78, 95% Confidence Interval (CI): 0.61-0.98; high vs. low, HR = 0.61, 95%CI: 0.36-0.84. In addition, gender, body mass index, insulin treatment, family history of diabetes, history of cardiovascular disease were significant effect modifiers for the association between PA and RPC. CONCLUSIONS: Higher PA level was independently associated with a lower risk of DR progression among working-aged diabetic populations in this large cohort study.
OBJECTIVE: To examine the association of physical activities (PA) with diabetic retinopathy (DR) progression based on a 10-year follow-up of a large cohort of working-aged diabetic populations in Australia. METHODS: Nine thousand and eighteen working-aged diabeticpatients were enrolled from the baseline of the 45 and Up Study from New South Wales, Australia. Self-reported PA collected by questionnaire at baseline in 2006 was graded into low (<5 sessions/week), medium (≥5-14), and high (≥14) levels. Retinal photocoagulation (RPC) treatment during the follow-up period was used as a surrogate for DR progression and was tracked through the Medicare Benefits Schedule, which was available from 2004 to 2016. Cox regression was used to estimate the association between PA and RPC incidence. RESULTS: In the fully adjusted model, higher PA level was significantly associated with a lower risk of RPC incident (Cox-regression, p-value for trend = 0.002; medium vs. low, hazard ratio (HR) = 0.78, 95% Confidence Interval (CI): 0.61-0.98; high vs. low, HR = 0.61, 95%CI: 0.36-0.84. In addition, gender, body mass index, insulin treatment, family history of diabetes, history of cardiovascular disease were significant effect modifiers for the association between PA and RPC. CONCLUSIONS: Higher PA level was independently associated with a lower risk of DR progression among working-aged diabetic populations in this large cohort study.
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