Fig 1.
Ret-cam = trained technician took fundus photograph and sent to expert ophthalmologist (reader A and reader B) for interpretation; IO by expert ophthalmologist = Indirect ophthalmoscopy by expert ophthalmologist (reference standard); IO by local ophthalmologist = Indirect ophthalmoscopy by local ophthalmologist; ROP-RT = ROP requiring treatment; ROP-AS = ROP of any stage; Plus = presence of plus disease.
Table 1.
Baseline data of all enrolled infants and infants with ROP.
Table 2.
Cross tabulation of the number of infants for 3 methods of examination (Reader A, Reader B, and local ophthalmologist) against indirect ophthalmoscopy by the expert ophthalmologist (the reference standard).
Table 3.
Diagnostic Performance of each method of eye examination classified in 3 categories.
Table 4.
Agreement (Cohen’s Kappa) between each pair of examination method based on ROP-RT.