Evaluation of filtering blebs using the ‘Wuerzburg bleb classification score’ compared to clinical findings

Table 2 Cross table target pressure vs. different scores including value of agreement

		Score ≥ 10		Score ≥ 9		Score ≥ 8		Score ≥ 7		Score ≥ 6		Score ≥ 5
		No	Yes	No	Yes	No	Yes	No	Yes	No	Yes	No	Yes
Target IOP reached	No	11	4	8	7	5	10	5	10	2	13	2	13
Target IOP reached	Yes	21	21	13	29	5	37	4	38	2	40	2	40
Agreement	Kappa		.17		.19		.24		.27		.11		.11