Table 5

Summary of incidence and progression of DR in Chinese populations

Name/place of studyAge (years)Sample sizeDesignFollow-up yearsPhotographyClassificationIncidence (%)Progression (%)Regression (%)
Fengyutan community, Shenyang (10)60–84548CB4Not mentionedETDRS1.81 person-year
Beijing Eye Study (18)≥402602PB10Two fieldsETDRS4.2
Beixinjing community, Shanghai (9)≥19778CB5Two fields (screening), FFA (for suspect)ICDR46.8924.12
Beijing Eye Study (20)≥40170PB5Two fieldsETDRS35.3
Hong Kong (19)20–77354HB4.2Two fieldsETDRS20.334.713.2
Kinmen, Taiwan (8)≥30725CB2.56Indirect ophthalmoscopy and single fieldDRDSC6.62 per year
Taiwan (21)≥40471Healthcare centres4Direct/indirect ophthalmoscopyNo DR, BDR, PPDR, PDR19.230
FS-DIRECT≥301389CB1.8Six fieldsETDRS5.8*26.8*10.0*
  • *Data presented as age-standardised and sex-standardised.

  • BDR, background diabetic retinopathy; CB, community-based; DR, diabetic retinopathy; DRDSC, diabetic retinopathy disease severity scale; FFA, fundus fluorescence angiography; FS-DIRECT, fushun diabetic retinopathy cohort study; HB, hospital-based; ICDR, international clinical diabetic retinopathy and diabetic macular oedema disease severity scale; PB, population-based; PDR, proliferative diabetic retinopathy; PPDR, preproliferative diabetic retinopathy.