Xu Cailian, Bi Mingchao, Jin Xuemei, Zhu Manhui, Wang Guohui, Zhao Ping, Qin Xiao, Xu Xun, Sun Xiaodong, Ji Na, Du Jinxia, Xu Jiaowen, Guo Yang, Ma Qinghua, Song E
Lixiang Eye Hospital of Soochow University, Suzhou, Jiangsu, China.
The First Hospital of Jilin University, Changchun, Jilin, China.
J Diabetes Res. 2020 Jul 12;2020:1860452. doi: 10.1155/2020/1860452. eCollection 2020.
To investigate the association between variables related to tea consumption (duration, frequency, and type) and the risk of diabetic retinopathy.
A rural community-based, cross-sectional survey was conducted in Weitang Town, Suzhou, China. People aged 60 years or above were invited to complete the survey. All eligible patients underwent detailed eye examination. Diabetic retinopathy (DR) was diagnosed and graded based on the retinal fundus imaging. Diabetes was defined as fasting glucose concentrations of ≥7.0 mmol/L or self-reported diagnosis of diabetes. Information about tea consumption such as duration, type, and frequency, together with demographics and lifestyle characteristics, were collected using a face-to-face questionnaire interview. The association between tea consumption and the risk of DR was determined by univariate and multivariate logistic regression analyses.
Among the 5,281 participants, 614 had diabetes mellitus (prevalence of 11.63%). The prevalence rate of DR was 10.38% in the diabetic population and 1.04% in the general population. Compared with non-tea consumers, the crude OR values for DR in subjects with long-term and short-term tea consumption were 0.34 (95%CI = 0.14-0.82, = 0.016) and 1.64 (95%CI = 0.74-3.64, = 0.221), respectively. When adjusted for age, gender, and other confounders, consumption of tea for ≥20 years was associated with reduced odds of DR (OR = 0.29, 95%CI = 0.09-0.97, = 0.044). Thus, long-term tea consumption was significantly associated with a lower risk of DR. There was no statistical significance between frequency or type of tea consumption with DR ( > 0.05).
Elderly diabetic Chinese residents who consumed tea for more than twenty years had a lower risk of DR compared to non-tea consumers. The long-term tea consumption may be an independent protective factor for DR. However, further studies are warranted to examine the association.
研究与饮茶相关的变量（持续时间、频率和类型）与糖尿病视网膜病变风险之间的关联。
在中国苏州渭塘镇开展了一项基于农村社区的横断面调查。邀请60岁及以上的人群完成调查。所有符合条件的患者均接受了详细的眼部检查。糖尿病视网膜病变（DR）根据视网膜眼底成像进行诊断和分级。糖尿病定义为空腹血糖浓度≥7.0 mmol/L或自我报告的糖尿病诊断。通过面对面问卷调查收集有关饮茶持续时间、类型和频率等饮茶信息，以及人口统计学和生活方式特征。通过单因素和多因素逻辑回归分析确定饮茶与DR风险之间的关联。
在5281名参与者中，614人患有糖尿病（患病率为11.63%）。糖尿病患者中DR的患病率为10.38%，普通人群中为1.04%。与不饮茶者相比，长期和短期饮茶者患DR的粗OR值分别为0.34（95%CI = 0.14 - 0.82，P = 0.016）和1.64（95%CI = 0.74 - 3.64，P = 0.221）。在调整年龄、性别和其他混杂因素后，饮茶≥20年与DR几率降低相关（OR = 0.29，95%CI = 0.09 - 0.97，P = 0.044）。因此，长期饮茶与较低的DR风险显著相关。饮茶频率或类型与DR之间无统计学意义（P > 0.05）。
与不饮茶者相比，长期饮茶的中国老年糖尿病居民患DR的风险较低。长期饮茶可能是DR的一个独立保护因素。然而，需要进一步研究来检验这种关联。
