Long-Term Tea Consumption Is Associated with Reduced Risk of Diabetic Retinopathy: A Cross-Sectional Survey among Elderly Chinese from Rural Communities

Table 4

Prevalence of DR in partial population-based studies for the Chinese race.

Study	Date of data collection	Setting	Population	Mean age (y)	Sample	Prevalence of DR^#
This study	2014–2015	Rural	General		5,281	10.4%
Yangxi Eye Study [34]	2014	Rural	General		5,258	8.2%
Gusu DR screening study [35]	2015	Urban	Diabetic		913	18.0%
Desheng Diabetic Eye Study [36]	2009–2012	Urban	Diabetic		1,340	35.2%
Chinese American Eye Study [37]	2010–2013	Urban	General	≥50	4,582	35.8%
Beijing Eye Study [38]	2006	Urban and rural	General		3,251	27.9%
Handan Eye Study [39]	2006–2007	Rural	General		6,830	43.1%
Meta-analysis study [2]	2017	Urban and rural	General	NA	NA	18.5%

NA: data was not available. ^#Prevalence of DR is for the diabetic population.