. Author manuscript; available in PMC: 2011 Oct 1.

Published in final edited form as: Am J Ophthalmol. 2010 Oct;150(4):468–475.e2. doi: 10.1016/j.ajo.2010.04.027

Table 1.

Diagnosis of “plus” versus “not plus” in posterior retinal images by 5 recognized retinopathy of prematurity (ROP) experts.^*

	31–33 weeks		35–37 weeks		Total

Expert	Plus	Not plus	Plus	Not plus	Plus	Not plus
1	0/74 (0%)	74/74 (100%)	17/74 (23%)	57/74 (77%)	17/148 (11%)	131/148 (89%)
2	0/74 (0%)	74/74 (100%)	24/74 (32%)	50/74 (68%)	24/148 (16%)	124/148 (84%)
3	0/74 (0%)	74/74 (100%)	7/74 (9%)	67/74 (91%)	7/148 (5%)	141/148 (95%)
4	0/74 (0%)	74/74 (100%)	4/74 (5%)	70/74 (95%)	4/148 (3%)	144/148 (97%)
5	0/74 (0%)	74/74 (100%)	16/74 (22%)	58/74 (78%)	16/148 (11%)	132/148 (89%)

Posterior retinal images of both eyes of 37 premature infants were taken at first session between 31–33 weeks post-menstrual age (PMA), and at a second session between 35–37 weeks PMA. Images were interpreted by 5 experts and given a diagnosis of “plus” versus “not plus.”